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Document and Entity Information	6 Months Ended
Document and Entity Information	Jun. 30, 2018 shares
Document Information [Line Items]
Entity Registrant Name	Navios Maritime Partners L.P.
Trading Symbol	NMM
Entity Central Index Key	0001415921
Document Type	6-K
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Well Known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Common Unitholders
Document Information [Line Items]
Entity Common Stock Shares Outstanding	167,589,764
General Partner Units
Document Information [Line Items]
Entity Common Stock Shares Outstanding	3,420,203

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 40,577	$ 24,047
Restricted cash	402	5,886
Accounts receivable, net	11,050	14,121
Vessel held for sale	67,000	0
Amounts due from related parties	11,735	10,545
Prepaid expenses and other current assets	2,381	905
Notes receivable	4,781	4,802
Total current assets	137,926	60,306
Vessels, net	1,005,290	1,099,015
Other long-term assets	2,793	2,779
Deferred dry dock and special survey costs, net	12,000	16,253
Investment in affiliates	69,237	52,122
Loans receivable from affiliates	11,861	11,706
Intangible assets	6,048	8,080
Amounts due from related parties	44,009	34,891
Notes receivable, net of current portion	13,760	15,897
Note receivable from affiliates	4,386	4,253
Total non-current assets	1,169,384	1,244,996
Total assets	1,307,310	1,305,302
Current liabilities
Accounts payable	3,717	3,718
Accrued expenses	7,104	8,800
Deferred revenue	15,938	15,143
Current portion of long-term debt, net	45,012	26,586
Total current liabilities	71,771	54,247
Long-term debt, net	449,450	466,877
Deferred revenue	10,467	16,468
Total non-current liabilities	459,917	483,345
Total liabilities	531,688	537,592
Commitments and contingencies
Partners' capital:
Common Unitholders (167,589,764 and 147,797,720 units issued and outstanding at June 30, 2018 and December 31, 2017, respectively)	799,352	791,669
General Partner (3,420,203 and 3,016,284 units issued and outstanding at June 30, 2018 and December 31, 2017, respectively)	5,693	5,464
Notes receivable	(29,423)	(29,423)
Total partners' capital	775,622	767,710
Total liabilities and partners' capital	$ 1,307,310	$ 1,305,302

Condensed Consolidated Balance Sheets (Parentheticals) (Unaudited) - shares	Jun. 30, 2018	Dec. 31, 2017
CONSOLIDATED BALANCE SHEETS [Abstract]
Common units issued	167,589,764	147,797,720
Common units outstanding	167,589,764	147,797,720
General Partners, units issued	3,420,203	3,016,284
General Partners, units outstanding	3,420,203	3,016,284

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Time charter and voyage revenues (includes related party revenue of $0 and $(9) for the three and six month periods ended June 30, 2018, respectively, and $33 and $643 for the three and six month periods ended June 30, 2017, respectively)	$ 58,196	$ 50,018	$ 111,248	$ 92,429
Time charter and voyage expenses	(2,758)	0	(4,488)	(1,413)
Direct vessel expenses	(1,544)	(1,631)	(3,169)	(3,333)
Management fees (entirely through related parties transactions)	(17,381)	(15,462)	(34,072)	(29,805)
General and administrative expenses	(5,513)	(4,865)	(9,044)	(8,077)
Depreciation and amortization	(14,355)	(18,680)	(29,272)	(35,455)
Vessel impairment losses	(37,860)	0	(37,860)	0
Interest expense and finance cost, net	(10,794)	(8,145)	(20,647)	(18,500)
Interest income	985	803	1,947	1,326
Other income	146	2,950	720	6,070
Other expense	(269)	(543)	(2,072)	(4,450)
Equity in net earnings of affiliated companies	1,614	0	2,654	0
Net (loss)/ income	(29,533)	4,445	(24,055)	(1,208)
Less: Net income attributable to the noncontrolling interest	0	(355)	0	(355)
Net (loss)/ income attributable to Navios Partners unitholders	$ (29,533)	$ 4,090	$ (24,055)	$ (1,563)
(Loss)/ earnings per unit:
Common unit (basic and diluted)	$ (0.18)	$ 0.03	$ (0.15)	$ (0.01)

Condensed Consolidated Statements of Operations (Parentheticals) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
CONSOLIDATED STATEMENTS OF INCOME [Abstract]
Revenue from related party	$ 0	$ 33	$ (9)	$ 643

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES:
Net loss	$ (24,055)	$ (1,208)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	29,272	35,455
Vessel impairment losses	37,860	0
Non cash accrued interest income and amortization of deferred revenue	(6,208)	(6,203)
Non cash accrued interest income from receivable from affiliates	(132)	(73)
Amortization and write-off of deferred financing cost and discount	3,631	6,159
Amortization of deferred dry dock and special survey costs	3,169	3,333
Equity in earnings of affiliates	(2,654)	64
Equity compensation expense	1,235	933
Allowance for doubtful accounts	0	1,495
Loss on vessel disposal	0	1,260
Changes in operating assets and liabilities:
Decrease/ (increase) in accounts receivable	3,071	(155)
(Increase)/ decrease in prepaid expenses and other current assets	(1,455)	15
(Decrease)/ increase in accounts payable	(1)	928
(Decrease)/ increase in accrued expenses	(1,855)	4,718
Increase/ (decrease) in deferred revenue	795	(1,906)
Net decrease in amounts due to related parties	0	(11,105)
Net increase in amounts due from related parties	(10,399)	(22,681)
Payments for dry dock and special survey costs	(1,020)	(945)
Net cash provided by operating activities	31,254	10,084
INVESTING ACTIVITIES:
Net cash proceeds from sale of vessels	0	109,740
Deposits for vessels acquisitions	0	(9,904)
Acquisition of vessels and favorable lease terms, net of cash acquired	(36,271)	(101,050)
Deposit for option to acquire vessel	(14)	0
Investment in affiliates	(14,460)	0
Repayments of notes receivable	2,344	2,344
Loans receivable from affiliates	0	(8,849)
Note receivable from affiliates	0	(4,050)
Net cash used in investing activities	(48,401)	(11,769)
FINANCING ACTIVITIES:
Cash distributions paid	(3,420)	0
Net proceeds from issuance of general partner units	714	2,626
Proceeds from issuance of common units, net of offering costs	33,532	98,175
Proceeds from noncontrolling interest	0	17,323
Common units issuance cost for Navios Europe I loans	0	(561)
Proceeds from long-term debt	14,300	449,420
Repayment of long-term debt and payment of principal	(16,723)	(497,104)
Deferred financing cost	(210)	(7,234)
Net cash provided by financing activities	28,193	62,645
Net increase in cash, cash equivalents and restricted cash	11,046	60,960
Cash, cash equivalents and restricted cash, beginning of period	29,933	25,088
Cash, cash equivalents and restricted cash, end of period	40,979	86,048
Supplemental disclosures of cash flow information
Cash interest paid	8,729	11,801
Non cash financing activities
Equity compensation expense	1,235	933
Issuance of common units for transfer of Navios Europe I loans	0	28,862
Receivable from affiliates	0	(29,423)
Accrued deferred financing costs	47	0
Non cash investing activities
Notes receivable	0	(18,750)
Accrued transaction costs	0	1,696
Accrued interest on loan receivable from affiliates	155	132
Accrued offering costs	159	0
Receivable from related parties (proceeds from issuance of general partner units)	$ 64	$ 0

Condensed Consolidated Statements of Changes in Partners' Capital (Unaudited) - USD ($) $ in Thousands	Total	General Partner	Common Unitholders	Note Receivable	Total Navios Partners' Capital	Noncontrolling interest
Balance at Dec. 31, 2016	$ 680,209	$ 3,128	$ 677,081		$ 680,209
Balance, Units at Dec. 31, 2016		1,700,493	83,323,911
Formation of Navios Containers	17,323					$ 17,323
Issuance of restricted common units (see Note 9), value	933		$ 933		933
Issuance of restricted common units (see Note 9), units			2,040,000
Proceeds from public offering and issuance of common units, net of offering costs (see Note 9), value	98,175		$ 98,175		98,175
Proceeds from public offering and issuance of common units, net of offering costs (see Note 9), units			48,995,442
Net proceeds from issuance of general partner units (see Note 9), value	2,626	$ 2,626			2,626
Net proceeds from issuance of general partner units (see Note 9), units		1,308,415
Issuance of common units for transfer of Navios Europe I Loans (see Notes 9 & 13), value	(561)		$ 28,862	$ (29,423)	(561)
Issuance of common units for transfer of Navios Europe I Loans (see Notes 9 & 13), units			13,076,923
Net (loss)/ income	(1,208)	$ (31)	$ (1,532)		(1,563)	355
Balance at Jun. 30, 2017	797,497	$ 5,723	$ 803,519	(29,423)	779,819	17,678
Balance, Units at Jun. 30, 2017		3,008,908	147,436,276
Balance at Dec. 31, 2017	767,710	$ 5,464	$ 791,669	(29,423)	767,710
Balance, Units at Dec. 31, 2017		3,016,284	147,797,720
Cash distribution paid (see Note 16)	(3,420)	$ (68)	$ (3,352)		(3,420)
Proceeds from public offering and issuance of common units, net of offering costs (see Note 9), value	33,374		$ 33,374		33,374
Proceeds from public offering and issuance of common units, net of offering costs (see Note 9), units			18,422,000
Net proceeds from issuance of general partner units (see Note 9), value	714	$ 714			714
Net proceeds from issuance of general partner units (see Note 9), units		375,959
Issuance of restricted common units (see Note 9), value	1,299	$ 64	$ 1,235		1,299
Issuance of restricted common units (see Note 9), units		27,960	1,370,044
Net (loss)/ income	(24,055)	$ (481)	$ (23,574)		(24,055)
Balance at Jun. 30, 2018	$ 775,622	$ 5,693	$ 799,352	$ (29,423)	$ 775,622	$ 0
Balance, Units at Jun. 30, 2018		3,420,203	167,589,764

Description of Business	6 Months Ended
Description of Business	Jun. 30, 2018
DESCRIPTION OF BUSINESS [Abstract]
Description of Business	NOTE 1 – DESCRIPTION OF BUSINESS Navios Maritime Partners L.P. (“Navios Partners” or the “Company”), is an international owner and operator of dry cargo vessels, formed on August 7, 2007 under the laws of the Republic of the Marshall Islands. Navios GP L.L.C. (the “General Partner”), a wholly owned subsidiary of Navios Maritime Holdings Inc. (“Navios Holdings”), was also formed on that date to act as the general partner of Navios Partners and received a 2.0% general partner interest in Navios Partners. Navios Partners is engaged in the seaborne transportation services of a wide range of dry cargo commodities including iron ore, coal, grain, fertilizer and also containers, chartering its vessels under medium to longer-term charters. The operations of Navios Partners are managed by Navios ShipManagement Inc., a subsidiary of Navios Holdings (the “Manager”), from its offices in Piraeus, Greece, Singapore and Monaco. Pursuant to the initial public offering (“IPO”) on November 16, 2007, Navios Partners entered into the following agreements: (a) a management agreement with the Manager (the “Management Agreement”), pursuant to which the Manager provides Navios Partners commercial and technical management services; (b) an administrative services agreement with the Manager (the “Administrative Services Agreement”), pursuant to which the Manager provides Navios Partners administrative services; and (c) an omnibus agreement with Navios Holdings (the “Omnibus Agreement”), governing, among other things, when Navios Partners and Navios Holdings may compete against each other as well as rights of first offer on certain drybulk carriers. As of June 30, 2018, there were outstanding: 167,589,764 common units and 3,420,203 general partnership units. As of June 30, 2018, Navios Holdings owned a 20.2% interest in Navios Partners, which included a 2.0% general partner interest. Navios Containers Navios Maritime Containers Inc. (“Navios Containers”), an affiliate of the Company, was established in the Republic of the Marshall Islands on April 28, 2017. The Company is a growth vehicle dedicated to the container sector of the maritime industry. On June 12, 2017, Navios Containers also registered and began trading on the Norwegian Over-The-Counter Market under the ticker NMCI. On June 8, 2017, Navios Containers closed its private placement and issued 10,057,645 shares for total gross proceeds of $50,288 at a subscription price of $5.00 per share. Navios Partners invested $30,000 and received 59.7% of the equity, and Navios Holdings invested $5,000 and received 9.9% of the equity of Navios Containers. Each of Navios Partners and Navios Holdings also received warrants, with a five-year term, for 6.8% and 1.7% of the equity, respectively. Navios Containers used the proceeds to acquire five 4,250 TEU vessels from Navios Partners for a total purchase price of $64,000. These vessels, first acquired by Navios Partners from Rickmers Maritime Trust Pte. (“Rickmers Trust”), are employed on charters with a net daily charter rate of $26,850. The charters expire in 2018 and early 2019. In addition, Navios Containers acquired all the rights under the acquisition agreements entered into between Navios Partners and Rickmers Trust to purchase the remaining nine vessels in the original 14-vessel container fleet. On August 29, 2017, Navios Containers closed its private placement of 10,000,000 shares at a subscription price of $5.00 per share, resulting in gross proceeds of $50,000. Navios Partners invested $10,000 and received 2,000,000 shares. Navios Partners also received warrants, with a five-year term, for 6.8% of the equity. As a result, from August 29, 2017, Navios Containers is considered an affiliate entity and the investment in Navios Containers is accounted for under the equity method due to the Company’s significant influence over Navios Containers. On November 9, 2017, Navios Containers closed a private placement of 9,090,909 shares at a subscription price of $5.50 per share, resulting in gross proceeds of approximately $50,000. Navios Partners invested $10,000 and received 1,818,182 shares. Navios Partners also received warrants, with a five-year term, for 6.8% of the newly issued equity. On March 13, 2018, Navios Containers closed a private placement of 5,454,546 shares at a subscription price of $5.50 per share, resulting in gross proceeds of approximately $30,000. Navios Partners invested $14,460 and received 2,629,095 shares and Navios Holdings invested $500 and received 90,909 shares. Navios Partners and Navios Holdings also received 370,909 and 9,273 warrants, with a five-year term, respectively. As of June 30, 2018, Navios Partners held 12,447,277 common shares and received 36.0% of the equity, and Navios Holdings held 1,090,909 common shares and received 3.2% of the equity of Navios Containers.

Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2018

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Summary of Significant Accounting Policies

NOTE 2 – SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

(a) Basis of presentation: The accompanying interim condensed consolidated financial statements are unaudited, but, in the opinion of management, reflect all adjustments for a fair statement of Navios Partners’ consolidated balance sheets, statement of partner’s capital, statements of operations and cash flows for the periods presented. The results of operations for the interim periods are not necessarily indicative of results for the full year. The footnotes are condensed as permitted by the requirements for interim financial statements and accordingly, do not include information and disclosures required under United States generally accepted accounting principles (“U.S. GAAP”) for complete financial statements. All such adjustments are deemed to be of a normal recurring nature. These interim financial statements should be read in conjunction with the Company’s consolidated financial statements and notes included in Navios Partners’ Annual Report for the year ended December 31, 2017 filed on Form 20-F with the U.S. Securities and Exchange Commission (“SEC”).

Change in accounting principles: On January 1, 2018, the Company adopted ASU 2016-18, “Restricted Cash” (“ASU 2016-18”), which updated ASC Topic 230, “Statement of Cash Flows.” ASU 2016-18 required companies to include restricted cash and restricted cash equivalents with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. The recognition and measurement guidance for restricted cash is not affected. The Company applied this guidance retrospectively to all prior periods presented in the Company’s financial statements. The reclassification of restricted cash in the statement of cash flows does not impact net income as previously reported or any prior amounts reported on the statements of comprehensive income, or balance sheet. The effect of the retrospective application of this change in accounting principle on the Company’s statement of cash flows for the six month period ended June 30, 2017 resulted in a decrease in net cash provided by operating activities of $444 and a decrease in net cash provided financing activities of $985 with a corresponding decrease in cash and cash equivalents of $1,429. (Please see Note 3).

(b) Principles of consolidation: The accompanying interim condensed consolidated financial statements include Navios Partners’ wholly owned subsidiaries incorporated under the laws of Marshall Islands, Malta, and Liberia from their dates of incorporation or, for chartered-in vessels, from the dates charter-in agreements were in effect. All significant inter-company balances and transactions have been eliminated in Navios Partners’ consolidated financial statements.

Navios Partners also consolidates entities that are determined to be variable interest entities (“VIE”) as defined in the accounting guidance, if it determines that it is the primary beneficiary. A VIE is defined as a legal entity where either (i) equity interest holders as a group lack the characteristics of a controlling financial interest, including decision making ability and an interest in the entity’s residual risks and rewards, (ii) the equity holders have not provided sufficient equity investment to permit the entity to finance its activities without additional subordinated financial support, or (iii) the voting rights of some investors are not proportional to their obligations to absorb the expected losses of the entity, their rights to receive the expected residual returns of the entity, or both and substantially all of the entity’s activities either involve or are conducted on behalf of an investor that has disproportionately few voting rights.

Based on internal forecasts and projections that take into account reasonably possible changes in our trading performance, management believes that the Company has adequate financial resources to continue in operation and meet its financial commitments, including but not limited to capital expenditures and debt service obligations, for a period of at least twelve months from the date of issuance of these interim condensed consolidated financial statements. Accordingly, the Company continues to adopt the going concern basis in preparing its financial statements.

Investments in Affiliates: Affiliates are entities over which the Company generally has between 20% and 50% of the voting rights, or over which the Company has significant influence, but it does not exercise control. Investments in these entities are accounted for under the equity method of accounting. Under this method, the Company records an investment in the stock of an affiliate at cost, and adjusts the carrying amount for its share of the earnings or losses of the affiliate subsequent to the date of investment and reports the recognized earnings or losses in income. Dividends received from an affiliate reduce the carrying amount of the investment. The Company recognizes gains and losses in earnings for the issuance of shares by its affiliates, provided that the issuance of such shares qualifies as a sale of such shares. When the Company’s share of losses in an affiliate equals or exceeds its interest in the affiliate, the Company does not recognize further losses, unless the Company has incurred obligations or made payments on behalf of the affiliate.

Affiliates included in the financial statements accounted for under the equity method: In the consolidated financial statements of Navios Partners, the following entities are included as affiliates and are accounted for under the equity method for such periods: (i) Navios Containers and its subsidiaries (ownership interest as of June 30, 2018 was 36.0%); (ii) Navios Europe I and its subsidiaries (ownership interest as of June 30, 2018 was 5.0%); and (iii) Navios Europe II and its subsidiaries (ownership interest as of June 30, 2018 was 5.0%).

Subsidiaries: Subsidiaries are those entities in which Navios Partners has an interest of more than one half of the voting rights or otherwise has power to govern the financial and operating policies of the entity.

The accompanying consolidated financial statements include the following entities:


		Country of	Statements of operations
Company name	Vessel name	incorporation	2018	2017
Libra Shipping Enterprises Corporation	Navios Libra II	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Alegria Shipping Corporation	Navios Alegria	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Felicity Shipping Corporation	Navios Felicity	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Gemini Shipping Corporation(1)	Navios Gemini S	Marshall Is.	—	1/01 – 06/30
Galaxy Shipping Corporation	Navios Galaxy I	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Aurora Shipping Enterprises Ltd.	Navios Hope	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Palermo Shipping S.A.(2)	Navios Apollon	Marshall Is.	—	1/01 – 04/21
Fantastiks Shipping Corporation	Navios Fantastiks	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Sagittarius Shipping Corporation	Navios Sagittarius	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Hyperion Enterprises Inc.	Navios Hyperion	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Chilali Corp.	Navios Aurora II	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Surf Maritime Co.	Navios Pollux	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Pandora Marine Inc.	Navios Melodia	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Customized Development S.A.	Navios Fulvia	Liberia	1/01 – 06/30	1/01 – 06/30
Kohylia Shipmanagement S.A.	Navios Luz	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Orbiter Shipping Corp.	Navios Orbiter	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Floral Marine Ltd.	Navios Buena Ventura	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Golem Navigation Limited	Navios Soleil	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Kymata Shipping Co.	Navios Helios	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Joy Shipping Corporation	Navios Joy	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Micaela Shipping Corporation	Navios Harmony	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Pearl Shipping Corporation	Navios Sun	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Velvet Shipping Corporation	Navios La Paix	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Perigiali Navigation Limited	Navios Beaufiks	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Finian Navigation Co.	Navios Ace	Marshall Is.	1/01 – 06/30	06/09 – 06/30
Ammos Shipping Corp.	Navios Prosperity I	Marshall Is.	1/01 – 06/30	06/07 – 06/30
Wave Shipping Corp.	Navios Libertas	Marshall Is.	1/01 – 06/30	—
Casual Shipholding Co.	Navios Sol	Marshall Is.	1/01 – 06/30	—
Avery Shipping Company	Navios Symphony	Marshall Is.	1/01 – 06/30	—
Coasters Ventures Ltd.	Navios Christine B	Marshall Is.	1/01 – 06/30	—
Ianthe Maritime S.A.	Navios Aster	Marshall Is.	1/01 – 06/30	—
Rubina Shipping Corporation	Hyundai Hongkong	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Topaz Shipping Corporation	Hyundai Singapore	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Beryl Shipping Corporation	Hyundai Tokyo	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Cheryl Shipping Corporation	Hyundai Shanghai	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Christal Shipping Corporation	Hyundai Busan	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Fairy Shipping Corporation(3)	YM Utmost	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Limestone Shipping Corporation(3)	YM Unity	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Dune Shipping Corp.(4)	MSC Cristina	Marshall Is.	—	1/01 – 01/12
Citrine Shipping Corporation	—	Marshall Is.	—	—
Cavalli Navigation Inc.	—	Marshall Is.	—	—
Seymour Trading Limited	Navios Altair I	Marshall Is.	06/07 – 06/30	—
Goldie Services Company	Navios Symmetry	Marshall Is.	05/21 – 06/30	—
Andromeda Shiptrade Limited	Navios Apollon I	Marshall Is.	05/09 – 06/30	—
Chartered-in vessels
Cavos Navigation Co.	—	Marshall Is.	—	—
Other
Prosperity Shipping Corporation	—	Marshall Is.	—	—
Aldebaran Shipping Corporation	—	Marshall Is.	—	—
JTC Shipping and Trading Ltd.(5)	Holding Company	Malta	1/01 – 06/30	1/01 – 06/30
Navios Maritime Partners L.P.	N/A	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Navios Maritime Operating LLC.	N/A	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Navios Partners Finance (US) Inc.	Co-Borrower	Delaware	1/01 – 06/30	1/01 – 06/30
Navios Partners Europe Finance Inc.	Sub-Holding Company	Marshall Is.	1/01 – 06/30	1/01 – 06/30

(1) The vessel was sold on December 21, 2017 (see Note 4 — Vessels, net).

(2) The vessel was sold on April 21, 2017 (see Note 4 — Vessels, net).

(3) The vessel has been classified as held for sale as at June 30, 2018 and was sold on July 2, 2018 (see Note 5 – Vessels held for sale).

(4) The vessel was sold on January 12, 2017 (see Note 4 — Vessels, net).

(5) Not a vessel-owning subsidiary and only holds right to charter-in contracts.

Revenue Recognition: On January 1, 2018, the Company adopted the provisions of ASC 606, Revenue from Contracts with Customers (ASC 606). The guidance provides a unified model to determine how revenue is recognized. In doing so, the Company makes judgments including identifying performance obligations in the contract, estimating the amount of variable consideration to include in the transaction price, and allocating the transaction price to each performance obligation. Revenue is recognized when (or as) the Company transfers promised goods or services to its customers in amounts that reflect the consideration to which the company expects to be entitled to in exchange for those goods or services, which occurs when (or as) the Company satisfies its contractual obligations and transfers control of the promised goods or services to its customers. Revenues are recognized to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In determining the appropriate amount of revenue to be recognized as it fulfills its obligations under its agreements, the Company performs the following steps: (i) identification of the promised goods or services in the contract; (ii) determination of whether the promised goods or services are performance obligations, including whether they are distinct in the context of the contract; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations based on estimated selling prices; and (v) recognition of revenue when (or as) the Company satisfies each performance obligation.

The Company’s contract revenues from time chartering and pooling arrangements are governed by ASC 840 “Leases”. Upon adoption of ASC 606, the timing and recognition of earnings from the pool arrangements and time charter contracts to which the Company is party did not change significantly from previous practice. As a result, the adoption of this standard had no effect on the Company’s opening retained earnings, consolidated balance sheets and consolidated statements of operations.

The Company’s revenues earned under voyage contracts (revenues for the transportation of cargo) were previously recognized ratably over the estimated relative transit time of each voyage. A voyage was deemed to commence when a vessel was available for loading and was deemed to end upon the completion of the discharge of the current cargo. Estimated losses on voyages are provided for in full at the time such losses become evident. Under a voyage charter, a vessel is provided for the transportation of specific goods between specific ports in return for payment of an agreed upon freight per ton of cargo. Upon adoption of ASC 606, the Company will recognize revenue ratably from port of loading to when the charterer’s cargo is discharged as well as defer costs that meet the definition of “costs to fulfill a contract” and relate directly to the contract. During 2017, no freight voyages existed and therefore, there was no impact on the Company’s results of operations, financial position or cash flows. Revenue from voyage contracts amounted to $3,814 and $0 for the six month periods ended June 30, 2018 and 2017, respectively.

Revenues from time chartering of vessels are accounted for as operating leases and are thus recognized on a straight-line basis as the average revenue over the rental periods of such charter agreements, as service is performed. A time charter involves placing a vessel at the charterers’ disposal for a period of time during which the charterer uses the vessel in return for the payment of a specified daily hire rate. Under time charters, operating costs such as for crews, maintenance and insurance are typically paid by the owner of the vessel. Revenue from time chartering of vessels amounted to $104,672 and $88,765 for the six month periods ended June 30, 2018 and 2017, respectively.

Profit sharing revenues are calculated at an agreed percentage of the excess of the charterer’s average daily income (calculated on a quarterly or half-yearly basis) over an agreed amount and accounted for on an accrual basis based on provisional amounts and for those contracts that provisional accruals cannot be made due to the nature of the profit share elements, these are accounted for on the actual cash settlement or when such revenue becomes determinable.

For vessels operating in pooling arrangements, the Company earns a portion of total revenues generated by the pool, net of expenses incurred by the pool. The amount allocated to each pool participant vessel, including the Company’s vessels, is determined in accordance with an agreed-upon formula, which is determined by points awarded to each vessel in the pool based on the vessel’s age, design and other performance characteristics. Revenue under pooling arrangements is accounted for as variable rate operating leases on the accrual basis and is recognized when an agreement with the pool exists, price is fixed, service is provided and the collectability is reasonably assured. The allocation of such net revenue may be subject to future adjustments by the pool however, such changes are not expected to be material. The Company recognizes net pool revenue on a monthly and quarterly basis, when the vessel has participated in a pool during the period and the amount of pool revenue can be estimated reliably based on the pool report.

Revenue from vessels operating in pooling and profit sharing arrangements amounted to $2,762 and $3,664 for the six month periods ended June 30, 2018 and 2017, respectively.

Revenues are recorded net of address commissions. Address commissions represent a discount provided directly to the charterers based on a fixed percentage of the agreed upon charter or freight rate. Since address commissions represent a discount (sales incentive) on services rendered by the Company and no identifiable benefit is received in exchange for the consideration provided to the charterer, these commissions are presented as a reduction of revenue.

Adoption of new accounting standards: On January 1, 2018, the Company adopted ASU No. 2014-09, “Revenue from Contracts with Customers” and the related amendments (“ASC 606” or “the new revenue standard”) using the modified retrospective method, requiring to recognize the cumulative effect of adopting this guidance as an adjustment to the 2018 opening balance of retained earnings and not retrospectively adjusting prior periods.

Under the new guidance, there is a five-step model to apply to revenue recognition. The five-steps consist of: (1) determination of whether a contract, an agreement between two or more parties that creates legally enforceable rights and obligations, exists; (2) identification of the performance obligations in the contract; (3) determination of the transaction price; (4) allocation of the transaction price to the performance obligations in the contract; and (5) recognition of revenue when (or as) the performance obligation is satisfied.

As a result of adoption, there was no cumulative impact to the Company’s retained earnings at January 1, 2018. The comparative information has not been restated and continues to be reported under the accounting standards in effect for those periods. The Company expects the impact of the adoption of the new standard to be immaterial to its net income on an ongoing basis. In August 2016, the FASB issued Accounting Standards Update No. 2016-15, “Statement of Cash Flows: Classification of Certain Cash Receipts and Cash Payments” (“ASU 2016-15”). This Update addresses eight specific cash flow issues with the objective of reducing the existing diversity in practice. The Company adopted the new guidance on January 1, 2018 and it did not have a material impact on the consolidated results of operations, financial condition, or cash flows.

Recent Accounting Pronouncements: In January 2017, FASB issued Accounting Standard Update No. 2017-03 “Accounting Changes and Error Corrections (Topic 250) and Investments-Equity Method and Joint Ventures (Topic 323).” The ASU amends the Codification for SEC staff announcements made at recent Emerging Issues Task Force (EITF) meetings. The SEC guidance that specifically relates to our Consolidate Financial Statement was from the September 2016 meeting, where the SEC staff expressed its expectations about the extent of disclosures registrants should make about the effects of the new FASB guidance as well as any amendments issued prior to adoption, on revenue (ASU 2014-09), leases (ASU 2016-02) and credit losses on financial instruments (ASU 2016-13) in accordance with SAB Topic 11.M. Registrants are required to disclose the effect that recently issued accounting standards will have on their financial statements when adopted in a future period. In cases where a registrant cannot reasonably estimate the impact of the adoption, then additional qualitative disclosures should be considered. The ASU incorporates these SEC staff views into ASC 250 and adds references to that guidance in the transition paragraphs of each of the three new standards. The adoption of this new accounting guidance did not have a material effect on the Company’s Consolidated Financial Statements.

In February 2016, FASB issued ASU 2016-02, “Leases (Topic 842)”. ASU 2016-02 will apply to both capital (or finance) leases and operating leases. According to ASU 2016-02, lessees will be required to recognize assets (right of use asset) and liabilities (lease liability) on the balance sheet for both types of leases – capital (or finance) leases and operating leases – with terms greater than 12 months. ASU 2016 – 02 is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Early application is permitted.

This guidance requires companies to identify lease and non-lease components of a lease agreement. Lease components relate to the right to use the leased asset and non-lease components relate to payments for goods or services that are transferred separately from the right to use the underlying asset. Total lease consideration is allocated to lease and non-lease components on a relative standalone basis. The recognition of revenues related to lease components will be governed by ASC 842 while revenue related to non-lease components will be subject to ASC 606.

In January 2018, the FASB issued a proposed amendment to ASU 842, Leases, that would provide an entity the optional transition method to initially account for the impact of the adoption with a cumulative adjustment to accumulated deficit on the effective date of the ASU, January 1, 2019 rather than January 1, 2017, which would eliminate the need to restate amounts presented prior to January 1, 2019. In addition, this proposed amendment, lessors can elect, as a practical expedient, not to allocate the total consideration to lease and non-lease components based on their relative standalone selling prices. If adopted, this practical expedient will allow lessors to elect a combined single lease component presentation if (i) the timing and pattern of the revenue recognition of the combined single lease component is the same, and (ii) the related lease component and, the combined single lease component would be classified as an operating lease.

ASC 842 provides practical expedients that allow entities to not (i) reassess whether any expired or existing contracts are considered or contain leases; (ii) reassess the lease classification for any expired or existing leases; and (iii) reassess initial direct costs for any existing leases.

The Company plans to adopt the standard on January 1, 2019 and expects to elect the use of practical expedients. If the proposed amendment to ASU 842 is adopted, the Company would elect the transition method for adoption as described above.

The Company has not completed its analysis of this ASU. Based on a preliminary assessment, the Company is expecting that the adoption will not have a material effect on its financial statements since the Company is primarily a lessor and the changes are fairly minor. If the proposed practical expedient mentioned above is adopted and elected, goods and services embedded in the charter contract that qualify as non-lease components will be combined under a single lease component presentation. However, without the proposed practical expedient, the Company expects that it will continue to recognize the lease revenue component using an approach that is substantially equivalent to existing guidance. The components of the charter hire that are categorized as lease components will generally be a fixed rate per day with revenue recognized straight line over the lease contract. Other goods and services that are categorized as non-lease components will be recognized at either a point in time or over time based on the pattern of transfer of the underlying goods or services to our charterers.

The Company is continuing its assessment of other miscellaneous leases and may identify additional impacts this guidance will have on its consolidated financial statements and disclosures. The Company currently does not have any other miscellaneous leases that are greater than 12 months and the Company is the lessee that would be impacted by the adoption of this standard.

Cash and Cash Equivalents

6 Months Ended

Jun. 30, 2018

CASH AND CASH EQUIVALENTS [Abstract]

Cash and Cash Equivalents

NOTE 3 – CASH AND CASH EQUIVALENTS

Cash and cash equivalents consist of the following:


	June 30, 2018	December 31, 2017
Cash and cash equivalents	$ 40,577	$ 24,047
Restricted cash	402	5,886

Total cash and cash equivalents and restricted cash	$ 40,979	$ 29,933

Short-term deposits and highly liquid funds relate to amounts held in banks for general financing purposes and represent deposits with an original maturity of less than three months.

Cash deposits and cash equivalents in excess of amounts covered by government-provided insurance are exposed to loss in the event of non-performance by financial institutions. Navios Partners does maintain cash deposits and equivalents in excess of government-provided insurance limits. Navios Partners also minimizes exposure to credit risk by dealing with a diversified group of major financial institutions.

Restricted cash, at each of June 30, 2018 and December 31, 2017, included $402 and $386, respectively, which related to amounts held in retention accounts in order to service debt and interest payments, as required by certain of Navios Partners’ credit facilities. Also, as of December 31, 2017, an amount of $5,500 was held as security in the form of a letter of guarantee, relating to the chartering of a vessel, which was released in March 2018.

Vessels, Net

6 Months Ended

Jun. 30, 2018

VESSELS, NET [Abstract]

Vessels, Net

NOTE 4 – VESSELS, NET


Vessels	Cost	Accumulated Depreciation	Net Book Value
Balance December 31, 2016	$1,354,298	$(317,092)	$1,037,206
Additions	158,241	(56,210)	102,031
Disposals	(26,233)	18,688	(7,545)
Vessel impairment losses	(66,228)	33,551	(32,677)

Balance December 31, 2017	$1,420,078	$(321,063)	$1,099,015
Additions	36,271	(27,240)	9,031
Vessel impairment losses (see Note 5)	(51,187)	15,431	(35,756)
Transfer to vessels held for sale (see Note 5)	(67,000)	—	(67,000)

Balance June 30, 2018	$1,338,162	$(332,872)	$1,005,290

Acquisition of Vessels

2018

On June 7, 2018, Navios Partners acquired from an unrelated third party the Navios Altair I, a 2006-built Panamax vessel of 74,475 dwt, for an acquisition cost of $11,542.

On May 21, 2018, Navios Partners acquired from an unrelated third party the Navios Symmetry, a 2006-built Panamax vessel of 74,381 dwt, for an acquisition cost of $11,610.

On May 9, 2018, Navios Partners acquired from an unrelated third party the Navios Apollon I, a 2005-built Panamax vessel of 87,052 dwt, for an acquisition cost of $13,119.

2017

On September 20, 2017, Navios Partners acquired from an unrelated third party the Navios Symphony, a 2010-built Capesize vessel of 178,132 dwt, for an acquisition cost of $27,961.

On August 21, 2017, Navios Partners acquired from an unrelated third party the Navios Aster, a 2010-built Capesize vessel of 179,314 dwt, for an acquisition cost of $28,855.

On August 11, 2017, Navios Partners acquired from a related third party the Navios Christine B, a 2009-built Ultra-Handymax vessel of 58,058 dwt, for an acquisition cost of $14,030.

On July 17, 2017, Navios Partners acquired from an unrelated third party the Navios Sol, a 2009-built Capesize vessel of 180,274 dwt, for an acquisition cost of $28,607.

On July 10, 2017, Navios Partners acquired from an unrelated third party the Navios Libertas, a 2007-built Panamax vessel of 75,511 dwt, for an acquisition cost of $13,737.

On June 9, 2017, Navios Partners acquired from an unrelated third party the Navios Ace, a 2011-built Capesize vessel of 179,016 dwt, for an acquisition cost of $31,364.

On June 7, 2017, Navios Partners acquired from an unrelated third party the Navios Prosperity I, a 2007-built Panamax vessel of 75,527 dwt, for an acquisition cost of $13,687.

Sale of Vessels

2017

On December 21, 2017, Navios Partners sold the Navios Gemini S to an unrelated third party for a net sale price of $4,078. The aggregate net carrying amount of the vessel including the remaining carrying balance of dry dock and special survey costs of $502 amounted to $6,451 as at the date of sale.

On April 21, 2017, Navios Partners sold the Navios Apollon to an unrelated third party for a net sale price of $4,750. The aggregate net carrying amount of the vessel including the remaining carrying balance of dry dock and special survey costs of $782 amounted to $14,758 as at the date of sale.

On January 12, 2017, Navios Partners sold the MSC Cristina to an unrelated third party for a net sale price of $125,000. The aggregate net carrying amount of the vessel amounted to $142,193 as at the date of sale. The loss on sale of the vessel was $1,260 (see Note 18 — Other expense).

Vessel impairment losses

As of December 31, 2017, Navios Partners concluded that step two of the impairment assessment was required for one of its vessels held and used, as the undiscounted projected net operating cash flows did not exceed the carrying value. As a result, the Company recorded an impairment loss of $30,304 for this vessel, being the difference between the fair value and the vessel’s carrying value.

On November 27, 2017, Navios Partners entered into a Memorandum of Agreement with an unrelated third party for the disposal of the Navios Gemini S for a net sale price of $4,078. As of December 31, 2017, the Company had a current expectation that the vessel would be sold before the end of its previously estimated useful life, and as a result performed an impairment test of the specific asset group. An impairment loss of $2,373 was recognized under the caption “Vessel impairment losses” in the Consolidated Statements of Operations as of December 31, 2017. The vessel was sold on December 21, 2017.

On January 9, 2017, Navios Partners entered into a Memorandum of Agreement with an unrelated third party for the disposal of the Navios Apollon for a net sale price of $4,750. The vessel was subject to an existing time charter with an unrelated charterer and was not immediately available for sale and therefore did not qualify as an asset held for sale as of December 31, 2016. As of December 31, 2016, the Company had a current expectation that the vessel would be sold before the end of its previously estimated useful life, and as a result performed an impairment test of the specific asset group. An impairment loss of $10,008 was recognized under the caption “Vessel impairment losses” in the Consolidated Statements of Operations as of December 31, 2016. The vessel was sold on April 21, 2017.

Vessels Held For Sale	6 Months Ended
Vessels Held For Sale	Jun. 30, 2018
VESSELS, NET [Abstract]
Vessel Held For Sale	NOTE 5 – VESSELS HELD FOR SALE On April 27, 2018, Navios Partners agreed to sell the YM Unity and the YM utmost, two 2006-built Containerships of 8,204 TEU each, to its affiliate, Navios Containers, for a total sale price of $67,000. As of June 30, 2018, the vessels had been classified as held for sale as the relevant criteria for the classification were met and, therefore, were presented in the consolidated balance sheet at its fair value totaling $67,000. The aggregate net carrying amount of the vessels including the remaining carrying balance of dry dock and special survey costs of $2,104 amounted to $104,860 as at the date of sale. An impairment loss of $37,860 for the vessels held for sale was presented under the caption “Vessel impairment losses” in the consolidated Statements of Operations as of June 30, 2018. The vessels were sold on July 2, 2018, and proceeds from the sale were used to partially repay an amount of $20,200 of the DVB Credit Facility (see Note 7 — Borrowings).

Intangible Assets

6 Months Ended

Jun. 30, 2018

INTANGIBLE ASSETS [Abstract]

Intangible Assets

NOTE 6 – INTANGIBLE ASSETS

Intangible assets as of June 30, 2018 and December 31, 2017 consisted of the following:


	Cost	Accumulated Amortization	Net Book Value
Favorable lease terms December 31, 2016	$83,716	$(64,764)	$18,952
Additions	—	(10,872)	(10,872)

Favorable lease terms December 31, 2017	$83,716	$(75,636)	$8,080
Additions	—	(2,032)	(2,032)

Favorable lease terms June 30, 2018	$83,716	$(77,668)	$6,048

Amortization expense of favorable lease terms for the three and six month periods ended June 30, 2018 and 2017 is presented in the following table:


	Three Month Period Ended		Six Month Period Ended
	June 30, 2018	June 30, 2017	June 30, 2018	June 30, 2017
Favorable lease terms	$(1,016)	$(5,275)	$(2,032)	$(8,446)

Total	$(1,016)	$(5,275)	$(2,032)	$(8,446)

The aggregate amortization of the intangibles for the 12-month periods ended June 30 is estimated to be as follows:


Year	Amount
2019	2,299
2020	1,166
2021	1,166
2022 and thereafter	1,417

	$6,048

Intangible assets subject to amortization are amortized using straight line method over their estimated useful lives to their estimated residual value of zero. The weighted average useful lives are 10.3 years for the remaining favorable lease terms, at inception.

Borrowings

6 Months Ended

Jun. 30, 2018

Borrowings [Abstract]

Borrowings

NOTE 7 – BORROWINGS

Borrowings as of June 30, 2018 and December 31, 2017 consisted of the following:


	June 30, 2018	December 31, 2017
Term Loan B facility	$ 430,004	$ 441,471
Credit facilities	78,205	69,161

Total borrowings	$ 508,209	$ 510,632
Less: Long-term unamortized discount	(8,715)	(10,824)
Less: Current portion of long-term debt, net	(45,012)	(26,586)
Less: Deferred finance costs, net	(5,032)	(6,345)

Long-term debt, net	$ 449,450	$ 466,877

As of June 30, 2018, the total borrowings, net of deferred finance fees and discount under the Navios Partners’ credit facilities were $494,462.

Term Loan B Facility: In June 2013, Navios Partners completed the issuance of the $250,000 Term Loan B Facility. On October 31, 2013 and November 1, 2013, Navios Partners completed the issuance of an $189,500 add-on to its existing Term Loan B Facility.

On March 14, 2017, Navios Partners completed the issuance of a new $405,000 Term Loan B Facility. The new Term Loan B Facility bears an interest rate of LIBOR plus 500 bps, it is set to mature on September 14, 2020 and is repayable in equal quarterly installments of 1.25% of the initial principal amount. Navios Partners used the net proceeds of the Term Loan B Facility to: (i) refinance the existing Term Loan B; and (ii) pay fees and expenses related to the Term Loan B. Following the refinancing of the Term Loan B Facility, an amount of $1,880 and $1,275, was written-off from the deferred finance fees and discount, respectively. On August 10, 2017, Navios Partners completed the issuance of a $53,000 add-on to its existing Term Loan B Facility. The add-on to the Term Loan B Facility bore the same terms as the Term Loan B Facility. Navios Partners used the net proceeds to partially finance the acquisition of three vessels.

The Term Loan B Facility is secured by first priority mortgages covering certain vessels owned by subsidiaries of Navios Partners, in addition to other collateral, and guaranteed by each subsidiary of Navios Partners.

The Term Loan B Facility requires maintenance of a loan to value ratio of 0.8 to 1.0, and other restrictive covenants customary for facilities of this type (subject to negotiated exceptions and baskets), including restrictions on indebtedness, liens, acquisitions and investments, restricted payments and dispositions. The Term Loan B Facility also provides for customary events of default, prepayment and cure provisions.

As of June 30, 2018, the outstanding balance of the Term Loan B Facility was $421,289, net of discount of $8,715, and is repayable in eight quarterly installments of $5,733 with a final payment of $384,138 on the last repayment date. The final maturity date is September 14, 2020.

BNP Credit Facility: On June 26, 2017, Navios Partners entered into a new credit facility with BNP PARIBAS (the “BNP Credit Facility”) of up to $32,000 (divided into two tranches) in order to finance a portion of the purchase price of the Navios Ace and the Navios Sol. On June 28, 2017, the first tranche of BNP Credit Facility of $17,000 was drawn. On July 18, 2017, the second tranche of BNP Credit Facility of $15,000 was drawn. As of June 30, 2018, the outstanding balance of the first and second tranche of the BNP Credit Facility was $29,205, in total, of which the first tranche is repayable in 12 equal consecutive quarterly installments of $386 each, with a final balloon payment of $10,824 to be repaid on the last repayment date and the second tranche is repayable in 13 equal consecutive installments of $417 each, with a final balloon payment of $8,328 to be repaid on the last repayment date. The facility matures with respect to the first and second tranches in the second and third quarter of 2021, respectively, and bears interest at LIBOR plus 300 bps per annum.

DVB Credit Facility: On June 28, 2017, Navios Partners entered into a new credit facility with DVB Bank S.E. (the “DVB Credit Facility”) of up to $39,000 (divided into four tranches) in order to refinance the Commerzbank/DVB Credit Facility dated July 2012 and an additional amount of $7,000 to partially finance the acquisition of the Navios Prosperity I. The facility matures in the third and second quarter of 2020 and bears interest at LIBOR plus 310 bps per annum. The amounts of $7,000 and $32,000 were drawn on June 30, 2017 and November 3, 2017, respectively. As of June 30, 2018, the outstanding balance of the four tranches of the DVB Credit Facility was $34,700 in total, of which the three of the four tranches are repayable in ten quarterly installments of between approximately $1,143 and $1,500 each, with a final balloon payment of $16,500 to be repaid on the last repayment date and the fourth tranche is repayable in one quarterly installment of $325 each and seven equal consecutive installments of $250, with a final balloon of $3,625 to be repaid on the last repayment date. On July 2, 2018, Navios Partners repaid the outstanding balance of the three tranches in the amount of $20,200, which was classified under the caption “Current portion of long-term debt, net” in the consolidated balance sheet as of June 30, 2018. Following this repayment, an amount of $209 was written-off from the deferred finance fees as of June 30, 2018.

Nordea/Skandinaviska Enskilda/NIBC Credit Facility: On March 26, 2018, Navios Partners entered into a new credit facility with Nordea Bank AB, Skandinaviska Enskilda BanKen AB and NIBC Bank N.V. (the “March 2018 Credit Facility”) of up to $14,300 (divided into two tranches) in order to finance a portion of the purchase of the Navios Altair I and the Navios Symmetry. On May 18, 2018, the first tranche of the March 2018 Credit Facility of $7,150 was drawn. On June 1, 2018 the second tranche of the March 2018 Credit Facility of $7,150 was drawn. As of June 30, 2018, the outstanding balance of the March 2018 Credit Facility was $14,300 and is repayable in 20 equal consecutive installments of $596, with a final balloon payment of $2,380 to be repaid on the last repayment date. The facility matures in the second quarter of 2023 and bears interest at LIBOR plus 300 bps per annum.

ABN AMRO Credit Facility: On June 23, 2016, Navios Partners entered into a new credit facility with ABN AMRO Bank N.V. (the “June 2016 Credit Facility”) of up to $30,000 to be used for the general corporate purposes of the Borrower. The June 2016 Credit Facility bore interest at LIBOR plus 400 bps per annum. The final maturity date was January 30, 2017. On January 12, 2017, Navios Partners fully repaid the June 2016 Credit Facility. As of June 30, 2018, there was no outstanding amount under this facility.

HSH Credit Facility: On April 16, 2015, Navios Partners, through certain of its wholly-owned subsidiaries, entered into a term loan facility agreement of up to $164,000 (divided into two tranches) with HSH Nordbank AG (the “April 2015 Credit Facility”), in order to finance a portion of the purchase price payable in connection with the acquisition of the MSC Cristina and one more super-post-panamax 13,100 TEU container vessel. On September 30, 2015, the second tranche of April 2015 Credit Facility of $83,000 was cancelled. The final maturity date was April 20, 2022. On January 12, 2017, Navios Partners fully repaid the April 2015 Credit Facility. Following the repayment, an amount of $516 was written-off from the deferred finance fees. As of June 30, 2018, there was no outstanding amount under this facility.

Amounts drawn under the credit facilities are secured by first preferred mortgages on certain Navios Partners’ vessels and other collateral and are guaranteed by the respective vessel-owning subsidiaries. The credit facilities contain a number of restrictive covenants that prohibit or limit Navios Partners from, among other things: incurring or guaranteeing indebtedness; entering into affiliate transactions; charging, pledging or encumbering the vessels; changing the flag, class, management or ownership of Navios Partners’ vessels; changing the commercial and technical management of Navios Partners’ vessels; selling or changing the beneficial ownership or control of Navios Partners’ vessels; not maintaining Navios Holdings’ (or its affiliates) ownership in Navios Partners of at least 15.0%; and subordinating the obligations under the credit facilities to any general and administrative costs relating to the vessels, including the fixed daily fee payable under the management agreement.

The credit facilities require compliance with a number of financial covenants, including: (i) maintain a required security amount ranging over 120% to 140%; (ii) minimum free consolidated liquidity in an amount equal to at least $650 per owned vessel; (iii) maintain a ratio of EBITDA to interest expense of at least 2.00:1.00; (iv) maintain a ratio of total liabilities or total debt to total assets (as defined in our credit facilities) ranging of less than 0.75; and (v) maintain a minimum net worth to $135,000.

It is an event of default under the credit facilities if such covenants are not complied with in accordance with the terms and subject to the prepayments or cure provisions of the facilities.

As of June 30, 2018, Navios Partners was in compliance with the financial covenants and/or the prepayment and/or the cure provisions as applicable in each of its credit facilities.

The maturity table below reflects the gross principal payments due under its credit facilities for the 12-month periods ended June 30:


Year	Amount
2019	$51,550
2020	30,815
2021	409,951
2022	11,129
2023 and thereafter	4,764

	$508,209

Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2018

FAIR VALUE OF FINANCIAL INSTRUMENTS [ABSTRACT]

Fair Value of Financial Instruments

NOTE 8 – FAIR VALUE OF FINANCIAL INSTRUMENTS

The carrying value amounts of many of Navios Partners’ financial instruments, including cash and cash equivalents, restricted cash, accounts receivable and accounts payable and amounts due to related parties approximate their fair value due primarily to the short-term maturity of the related instruments.

The following methods and assumptions were used to estimate the fair value of each class of financial instrument:

Cash and cash equivalents: The carrying amounts reported in the consolidated balance sheets for interest bearing deposits approximate their fair value because of the short maturity of these investments.

Restricted Cash: The carrying amounts reported in the consolidated balance sheets for interest bearing deposits approximate their fair value because of the short maturity of these investments.

Other long-term debt, net: The book value has been adjusted to reflect the net presentation of deferred finance costs. The outstanding balance of floating rate loans continues to approximate its fair value, excluding the effect of any deferred finance costs.

Term Loan B Facility: The fair value of the Company’s debt is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities, as well as taking into account our creditworthiness. The book value has been adjusted to reflect the net presentation of deferred finance fees.

Amounts due from related parties, long-term: The carrying amount of due from related parties long-term reported in the balance sheet approximates its fair value due to the long-term nature of these receivables.

Amounts due from related parties, short-term: The carrying amount of due from related parties, short-term reported in the balance sheet approximates its fair value due to the short-term nature of these receivables.

Loans receivable from affiliates: The carrying amount of the fixed rate loan approximates its fair value.

Notes receivable, net of current portion: The carrying amount of the fixed rate notes receivable approximate its fair value.

Receivables from affiliates: The carrying amount of the long-term receivable from affiliates approximates its fair value.

The estimated fair values of the Navios Partners’ financial instruments are as follows:


	June 30, 2018		December 31, 2017
	Book Value	Fair Value	Book Value	Fair Value
Cash and cash equivalents	$40,577	$40,577	$24,047	$24,047
Restricted cash	$402	$402	$5,886	$5,886
Loans receivable from affiliates	$11,861	$11,861	$11,706	$11,706
Amounts due from related parties, long-term	$44,009	$44,009	$34,891	$34,891
Amounts due from related parties, short-term	$11,735	$11,735	$10,545	$10,545
Term Loan B Facility, net	$(416,920)	$(430,542)	$(425,144)	$(441,471)
Other long-term debt, net	$(77,542)	$(78,205)	$(68,319)	$(69,161)
Notes receivable, net of current portion	$13,760	$13,760	$15,897	$15,897
Receivable from affiliates	$4,386	$4,386	$4,253	$4,253

Fair Value Measurements

The estimated fair value of our financial instruments that are not measured at fair value on a recurring basis, categorized based upon the fair value hierarchy, are as follows:

Level I: Inputs are unadjusted, quoted prices for identical assets or liabilities in active markets that we have the ability to access. Valuation of these items does not entail a significant amount of judgment.

Level II: Inputs other than quoted prices included in Level I that are observable for the asset or liability through corroboration with market data at the measurement date.

Level III: Inputs that are unobservable. The Company did not use any Level III inputs as of June 30, 2018 and December 31, 2017.


	Fair Value Measurements at June 30, 2018
	Total	Level I	Level II	Level III
Cash and cash equivalents	$40,577	$40,577	$—	$—
Restricted cash	$402	$402	$—	$—
Loans receivable from affiliates	$11,861	$—	$11,861	$—
Term Loan B facility, net(1)	$(430,542)	$—	$(430,542)	$—
Other long-term debt, net (1)	$(78,205)	$—	$(78,205)	$—
Notes receivable, net of current portion(2)	$13,760	$—	$13,760	$—
Amounts due from related parties, long-term	$44,009	$—	$44,009	$—
Amounts due from related parties, short-term	$11,735	$—	$11,735	$—
Receivable from affiliates	$4,386	$—	$4,386	$—

	Fair Value Measurements at December 31, 2017
	Total	Level I	Level II	Level III
Cash and cash equivalents	$24,047	$24,047	$—	$—
Restricted cash	$5,886	$5,886	$—	$—
Loans receivable from affiliates	$11,706	$—	$11,706	$—
Term Loan B facility, net(1)	$(441,471)	$—	$(441,471)	$—
Other long-term debt, net(1)	$(69,161)	$—	$(69,161)	$—
Notes receivable, net of current portion(2)	$15,897	$—	$15,897	$—
Amounts due from related parties, long-term	$34,891	$—	$34,891	$—
Amounts due from related parties, short-term	$10,545	$—	$10,545	$—
Receivable from affiliates	$4,253	$—	$4,253	$—

The estimated fair value of our financial instruments that are measured at fair value on a non-recurring basis, categorized based upon the fair value hierarchy, are as follows:


	Fair Value Measurements at June 30, 2018
	Total	Level I	Level II	Level III
Vessels held for sale (for YM Unity and YM Utmost)	$67,000	$—	$67,000	$—


	Fair Value Measurements at December 31, 2017
	Total	Level I	Level II	Level III
Vessels, net (for Navios Gemini S)	$4,078	$—	$4,078	$—

(1)The fair value of the Company’s debt is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account our creditworthiness.

(2)The fair value is estimated based on currently available information on the Company’s counterparty with similar contract terms, interest rate and remaining maturities.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Issuance of Units	6 Months Ended
Issuance of Units	Jun. 30, 2018
ISSUANCE OF UNITS [Abstract]
Issuance of Units	NOTE 9 – ISSUANCE OF UNITS On February 21, 2018, Navios Partners completed its public offering of 18,422,000 common units at $1.90 per unit and raised gross proceeds of approximately $35,002. The net proceeds of this offering, including the underwriting discount and the offering costs of $1,628 in total, were approximately $33,374. Pursuant to this offering, Navios Partners issued 375,959 general partnership units to its general partner. The net proceeds from the issuance of the general partnership units were $714. In December 2017, Navios Partners authorized the granting of 1,370,044 restricted common units, which were issued on January 11, 2018, to its directors and/or officers, which are based on service conditions only and vest over four years. The fair value of restricted units was determined by reference to the quoted stock price on the date of grant. Compensation expense, net of estimated forfeitures, is recognized when it is probable that the performance criteria will be met based on a graded expense model over the vesting period. Navios Partners also issued 27,960 general partnership units to its general partner for net proceeds of $64. As of June 30, 2018, the effect of compensation expense arising from the restricted units described above amounted to $810 and was presented under the caption “General and administrative expenses” in the consolidated Statements of Operations. There were no restricted common units exercised, forfeited or expired during the three and six month periods ended June 30, 2018 and the year ended December 31, 2017. Restricted common units outstanding and not vested amounted to 1,370,044 units as of June 30, 2018. On September 1, 2017 and as part of the acquisition agreement entered into between the Company and Rickmers Trust, Navios Partners authorized and issued 361,444 restricted common units and 7,376 general partnership units to its general partner for net proceeds of $600 and $12, respectively. The fair value of restricted units was determined by reference to the quoted stock price on the date of grant. On September 25, 2017, the fair value of the restricted units described above was compensated by Navios Containers in full amount. There were no restricted common units exercised, forfeited or expired during the three and six month periods ended June 30, 2018. Restricted common units outstanding amounted to 361,444 units as of June 30, 2018. On March 20, 2017, Navios Partners completed its public offering of 47,795,000 common units at $2.10 per unit and raised gross proceeds of approximately $100,369. The net proceeds of this offering, including the underwriting discount and the offering costs of $4,383 in total, were approximately $95,986. Pursuant to this offering, Navios Partners issued 975,408 general partnership units to its general partner. The net proceeds from the issuance of the general partnership units were $2,049. On March 17, 2017, Navios Holdings transferred to Navios Partners it rights to the fixed 12.7% interest on the Navios Europe I Navios Term Loans I and Navios Revolving Loans I (including the respective accrued receivable interest) for a total amount of $33,473 for a cash consideration of $4,050 and 13,076,923 newly issued common units of Navios Partners, with fair value net of costs at date of issuance of $28,862 (see Note 13 — Transactions with related parties and affiliates). Pursuant to this transaction, Navios Partners issued 266,876 general partnership units to its general partner for net cash proceeds of $468. In December 2016, Navios Partners authorized the granting of 2,040,000 restricted common units, which were issued on January 31, 2017, to its directors and/or officers, which are based on service conditions only and vest over three years. The fair value of restricted units was determined by reference to the quoted stock price on the date of grant. Compensation expense, net of estimated forfeitures, is recognized when it is probable that the performance criteria will be met based on a graded expense model over the vesting period. Navios Partners also issued 41,633 general partnership units to its general partner for net proceeds of $63. The effect of compensation expense arising from the restricted units described above amounted to $424 and $933 as of June 30, 2018 and 2017, respectively, and was presented under the caption “General and administrative expenses” in the consolidated Statements of Operations. There were no restricted common units exercised, forfeited or expired during the three and six month period ended June 30, 2018. As of June 30, 2018, 686,665 restricted common units were vested. As of June 30, 2018, the estimated compensation cost relating to service conditions of non-vested restricted common units not yet recognized was $2,986. Navios Holdings currently owns a 20.2% interest in Navios Partners, which includes the 2.0% interest through Navios Partners’ general partner, which Navios Holdings owns and controls.

Segment Information

6 Months Ended

Jun. 30, 2018

SEGMENT INFORMATION [Abstract]

Segment Information

NOTE 10 – SEGMENT INFORMATION

Up to August 29, 2017, the Company had two reportable segments from which it derived its revenues: Navios Partners Operations and Navios Containers Operations. The reportable segments reflect the internal organization of the Company whereby the Chief Operating Decision Maker (“CODM”) reviews the discrete financial information of the Navios Partners’ controlled fleet and the Navios Containers’ controlled fleet.

The Company measures segment performance based on net (loss)/income attributable to Navios Partners common unitholders. Summarized financial information concerning each of the Company’s reportable segments is as follows:


	Navios Partners Operations		Navios Containers Operations											Total
	Three Month	Three Month	Three Month			Period from			Eliminations					Three Month	Three Month
	Period Ended	Period Ended	Period Ended			April 28, 2017			for the period					Period Ended	Period Ended
	June 30,	June 30,	June 30,			June 30,			from April 28, 2017 to					June 30,	June 30,
	2018	2017	2018			2017			June 30, 2017					2018	2017
Revenue	$58,196	$46,916		$—			$3,102			—		$58,196				$50,018
Management fees	(17,381)	(14,760)		—			(702)			—		(17,381)				(15,462)
Interest expense and finance cost, net	(10,794)	(8,138)		—			(80)			73		(10,794)				(8,145)
Depreciation and amortization	(14,355)	(17,360)		—			(1,320)			—		(14,355)				(18,680)
Net (loss)/ income	(29,533)	7,987		—			881			(4,423)		(29,533)				4,445
Total assets	1,307,310	1,275,942		—			97,333			(45,723)		1,307,310				1,327,552
Capital expenditures	(35,938)	(95,247)		—			(44,567)			30,000		(35,938)				(109,814)
Investment in affiliates	69,237	31,192		—			—			(30,000)		69,237				1,192
Cash and cash equivalents	40,577	44,813		—			34,936			—		40,577				79,749
Restricted cash	402	6,299		—			—			—		402				6,299
Long-term debt (including current and non-current portion), net	$494,462	$441,347		—			$33,670			—		$494,462				$475,017

	Navios Partners Operations		Navios Containers Operations											Total
	Six Month	Six Month	Six Month			Period from			Eliminations					Six Month	Six Month
	Period Ended	Period Ended	Period Ended			April 28, 2017			for the period					Period Ended	Period Ended
	June 30,	June 30,	June 30,			to June 30,			from April 28, 2017 to					June 30,	June 30,
	2018	2017	2018			2017			June 30, 2017					2018	2017
Revenue	$111,248	$89,327			$—			$3,102			—		$111,248				$94,429
Management fees	(34,072)	(29,103)			—			(702)			—		(34,072)				(29,805)
Interest expense and finance cost, net	(20,647)	(18,493)			—			(80)			73		(20,647)				(18,500)
Depreciation and amortization	(29,272)	(34,135)			—			(1,320)			—		(29,272)				(35,455)
Net (loss)/ income	(24,055)	2,334			—			881			(4,423)		(24,055)				(1,208)
Total assets	1,307,310	1,275,942			—			97,333			(45,723)		1,307,310				1,327,552
Capital expenditures	(36,285)	2,798			—			(44,567)			30,000		(36,285)				(11,769)
Investment in affiliates	69,237	31,192			—			—			(30,000)		69,237				1,192
Cash and cash equivalents	40,577	44,813			—			34,936			—		40,577				79,749
Restricted cash	402	6,299			—			—			—		402				6,299
Long-term debt (including current and non-current portion), net	$494,462	$441,347			—			$33,670			—		$494,462				$475,017

Navios Partners reports financial information and evaluates its operations by charter revenues. Navios Partners does not use discrete financial information to evaluate operating results for each type of charter or by sector. As a result, management reviews operating results solely by revenue per day and operating results of the fleet and thus Navios Partners has determined that it operates under one reportable segment.

The following table sets out operating revenue by geographic region for Navios Partners’ reportable segment. Revenue is allocated on the basis of the geographic region in which the customer is located. Drybulk and containerships operate worldwide. Revenues from specific geographic region, which contribute over 10% of total revenue, are disclosed separately.

Vessels operate on a worldwide basis and are not restricted to specific locations. Accordingly, it is not possible to allocate the assets of these operations to specific countries.


	Three Month Period ended June 30, 2018	Three Month Period ended June 30, 2017	Six Month Period ended June 30, 2018	Six Month Period ended June 30, 2017
Asia	$33,574	$30,250	$63,945	$55,047
Europe	17,770	10,217	33,290	19,683
North America	5,200	5,161	11,025	9,654
Australia	1,652	4,390	2,988	8,045

Total	$58,196	$50,018	$111,248	$92,429

Income Taxes	6 Months Ended
Income Taxes	Jun. 30, 2018
INCOME TAXES [Abstract]
Income Taxes	NOTE 11 – INCOME TAXES Marshall Islands, Malta and Liberia do not impose a tax on international shipping income. Under the laws of Marshall Islands, Malta and Liberia, the countries of the vessel-owning subsidiaries’ incorporation and vessels’ registration, the vessel-owning subsidiaries are subject to registration and tonnage taxes, which have been included in vessel operating expenses in the accompanying consolidated Statements of Operations. In accordance with the currently applicable Greek law, foreign flagged vessels that are managed by Greek or foreign ship management companies having established an office in Greece are subject to duties towards the Greek state, which are calculated on the basis of the relevant vessel’s tonnage. The payment of said duties exhausts the tax liability of the foreign ship owning company and the relevant manager against any tax, duty, charge or contribution payable on income from the exploitation of the foreign flagged vessel. Pursuant to Section 883 of the Internal Revenue Code of the United States, U.S. source income from the international operation of ships is generally exempt from U.S. income tax if the company operating the ships meets certain incorporation and ownership requirements. Among other things, in order to qualify for this exemption, the company operating the ships must be incorporated in a country, which grants an equivalent exemption from income taxes to U.S. corporations. All the vessel-owning subsidiaries satisfy these initial criteria. In addition, these companies must meet an ownership test. The management of Navios Partners believes that this ownership test was satisfied prior to the IPO by virtue of a special rule applicable to situations where the ship operating companies are beneficially owned by a publicly traded company. Although not free from doubt, management also believes that the ownership test will be satisfied based on the trading volume and ownership of Navios Partners’ units, but no assurance can be given that this will remain so in the future.

Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

COMMITMENTS AND CONTINGENCIES [Abstract]

Commitments And Contingencies

NOTE 12 – COMMITMENTS AND CONTINGENCIES

Navios Partners is involved in various disputes and arbitration proceedings arising in the ordinary course of business. Provisions have been recognized in the financial statements for all such proceedings where Navios Partners believes that a liability may be probable, and for which the amounts are reasonably estimable, based upon facts known at the date the financial statements were prepared. Management believes the ultimate disposition of these matters will be immaterial individually and in the aggregate to Navios Partners’ financial position, results of operations or liquidity.

On April 27, 2018, Navios Partners agreed to sell the YM Utmost and the YM Unity, two 2006-built Containerships of 8,204 TEU each, to its affiliate, Navios Containers, for a total sale price of $67,000. The transaction was unanimously approved by the Conflicts Committee of the Board of Directors of Navios Partners. The sale was completed on July 2, 2018. Navios Partners used a portion of the sale proceeds to repay $20,200 of the DVB Credit Facility outstanding balance. As of June 30, 2018, the Company is contingently liable to pay the amount of $20,200.

In November 2017, Navios Partners entered into a 10-year bareboat charter-in agreement for a Panamax vessel of approximately 81,000 dwt. Navios Partners has the option to acquire the vessel after the end of the fourth year. The vessel is expected to be delivered within the second half of 2019. During the year ended December 31, 2017, the Company paid a deposit of $2,770, presented under the caption “Other long-term assets”. As of June 30, 2018, the Company is contingently liable to pay an additional deposit of $2,770 during the fourth quarter of 2018.

The future minimum commitments for the 12-month periods ended June 30, of Navios Partners under its charter-in contract, for vessel delivery and loan repayment are as follows:


	Amount
2019	$ 22,970
2020	1,630
2021	2,172
2022	2,172
2023	2,104
2024 and thereafter	12,739

	$ 43,787

Transactions with Related Parties and Affiliates	6 Months Ended
Transactions with Related Parties and Affiliates	Jun. 30, 2018
TRANSACTIONS WITH RELATED PARTIES AND AFFILIATES [Abstract]
Transactions with Related Parties and Affiliates	NOTE 13 – TRANSACTIONS WITH RELATED PARTIES AND AFFILIATES Management fees: Pursuant to the amended Management Agreement, in each of October 2013, August 2014, February 2015 and February 2016, the Manager, a wholly owned subsidiary of Navios Holdings, provides commercial and technical management services to Navios Partners’ vessels for a daily fee of: (a) $4.10 daily rate per Ultra-Handymax vessel; (b) $4.20 daily rate per Panamax vessel; (c) $5.25 daily rate per Capesize vessel; (d) $6.70 daily rate per Containership of TEU 6,800; (e) $7.40 daily rate per Containership of more than TEU 8,000; and (f) $8.75 daily rate per very large Containership of more than TEU 13,000 through December 31, 2017. On November 14, 2017, Navios Partners agreed to extend the duration of its existing Management Agreement with the Manager until December 31, 2022 and to fix the rate for shipmanagement services of its owned fleet through December 31, 2019, effective from January 1, 2018. The new management fees, excluding drydocking expenses which are reimbursed at cost by Navios Partners, will be: (a) $4.23 daily rate per Ultra-Handymax vessel; (b) $4.33 daily rate per Panamax vessel; (c) $5.25 daily rate per Capesize vessel; (d) $6.70 daily rate per Containership of TEU 6,800; (e) $7.40 daily rate per Containership of more than TEU 8,000 and (f) $8.75 daily rate per very large Containership of more than TEU 13,000. Drydocking expenses under this agreement are reimbursed by Navios Partners at cost at occurrence. Effective August 31, 2016, Navios Partners could, upon request to Navios Holdings, partially or fully defer the reimbursement of dry docking and other extraordinary fees and expenses under the Management Agreement to a later date, but not later than January 5, 2018, and if reimbursed on a later date, such amounts would bear interest at a rate of 1% per annum over LIBOR. Total management fees for the three and six month periods ended June 30, 2018 amounted to $17,382 and $34,072, respectively. Total management fees for the three and six month periods ended June 30, 2017 amounted to $15,462 and $29,805, respectively General and administrative expenses: Pursuant to the Administrative Services Agreement, the Manager also provides administrative services to Navios Partners, which include bookkeeping, audit and accounting services, legal and insurance services, administrative and clerical services, banking and financial services, advisory services, client and investor relations and other. The Manager is reimbursed for reasonable costs and expenses incurred in connection with the provision of these services. Navios Partners extended the duration of its existing Administrative Services Agreement with the Manager, until December 31, 2022. Total general and administrative expenses charged by Navios Holdings for the three and six month periods ended June 30, 2018 amounted to $2,330 and $4,580, respectively. Total general and administrative expenses charged by Navios Holdings for the three and six month periods ended June 30, 2017 amounted to $1,999 and $3,944, respectively. Balance due from related parties (excluding Navios Europe I and Navios Europe II): Balance due from related parties as of June 30, 2018 and December 31, 2017 amounted to $52,273 and $43,146, respectively, of which the current receivable was $8,264 and the long-term receivable was $44,009. The balance mainly consisted of management fees, drydocking expenses prepaid to Navios Holdings in accordance with the Management service agreement and the Navios Holdings Guarantee of up to $20,000, of which the fair value was estimated at $19,416 as of June 30, 2018. Vessel Chartering: In November 2016, Navios Partners entered into a charter with a subsidiary of Navios Holdings for the Navios Fulvia, a 2010-built Capesize vessel. The term of this charter is approximately three months that commenced in November 2016, at a net daily rate of $11.5. The vessel was redelivered in February 2017. Total loss of Navios Partners from the subsidiaries of Navios Holdings for the three and six month periods ended June 30, 2018 amounted to a $0 and $(9), respectively. Total revenue of Navios Partners from the subsidiaries of Navios Holdings for the three and six month periods ended June 30, 2017 amounted to $33 and $643, respectively. Share Purchase Agreements: On February 4, 2015, Navios Partners entered into a share purchase agreement with Navios Holdings pursuant to which Navios Holdings made an investment in Navios Partners by purchasing common units, and general partnership interests. Registration Rights Agreement: On February 4, 2015, in connection with the share purchase agreement as discussed above, Navios Partners entered into a registration rights agreement with Navios Holdings pursuant to which Navios Partners provided Navios Holdings with certain rights relating to the registration of the common units. Balance due from Navios Europe I: Navios Holdings, Navios Acquisition and Navios Partners have made available to Navios Europe I revolving loans up to $24,100 to fund working capital requirements (collectively, the “Navios Revolving Loans I”) (see Note 15 — Investment in Affiliates). The Navios Revolving Loans I and the Navios Term Loans I earn interest and an annual preferred return, respectively, at 12.7% per annum, on a quarterly compounding basis and are repaid from free cash flow (as defined in the loan agreement) to the fullest extent possible at the end of each quarter. As of June 30, 2018, Navios Partners’ portion of the outstanding amount relating to portion of the investment in Navios Europe I (5.0% of the $10,000) was $500, under the caption “Investment in affiliates” and the outstanding amount relating to the Navios Revolving Loans I capital was $1,205 (December 31, 2017: $1,205), under the caption “Loans receivable from affiliates”. The accrued interest income earned under the Navios Revolving Loans I was $599 (December 31, 2017: $489) under the caption “Balance due from related parties” and the accrued interest income earned under the Navios Term Loans I was $388 (December 31, 2017: $334) under the caption “Loans receivable from affiliates”. As of June 30, 2018, there was no amount undrawn under the Navios Revolving Loans I. Balance due from Navios Europe II: Navios Holdings, Navios Acquisition and Navios Partners have made available to Navios Europe II revolving loans up to $43,500 to fund working capital requirements (collectively, the “Navios Revolving Loans II”). In March 2017, the availability under the Navios Revolving Loans II was increased by $14,000 (see Note 15 — Investment in Affiliates). The Navios Revolving Loans II and the Navios Term Loans II earn interest and an annual preferred return, respectively, at 18% per annum, on a quarterly compounding basis and are repaid from free cash flow (as defined in the loan agreement) to the fullest extent possible at the end of each quarter. As of June 30, 2018, Navios Partners’ portion of the outstanding amount relating to portion of the investment in Navios Europe II (5.0% of the $14,000) was $700, under the caption “Investment in affiliates” and the outstanding amount relating to the Navios Revolving Loans II capital was $9,772 (December 31, 2017: $9,772), under the caption “Loans receivable from affiliates”. The accrued interest income earned under the Navios Revolving Loans II was $2,872 (December 31, 2017: $1,801) under the caption “Balance due from related parties” and the accrued interest income earned under the Navios Term Loans II was $496 (December 31, 2017: $395) under the caption “Loans receivable from affiliates”. As of June 30, 2018, the amount undrawn under the Navios Revolving Loans II was $15,003, of which Navios Partners may be required to fund an amount ranging from $0 to $15,003. Note receivable from affiliates: On March 17, 2017, Navios Holdings transferred to Navios Partners its rights to the fixed 12.7% interest on the Navios Europe I Navios Term Loans I and Navios Revolving Loans I (including the respective accrued receivable interest) in the amount of $33,473, which included a cash consideration of $4,050 and 13,076,923 newly issued common units of Navios Partners. At the date of this transaction, the Company recognized a receivable at the fair value of its newly issued common units totaling to $29,423 based on the closing price of $2.25 per unit as of March 16, 2017 given as consideration (see Note 9 — Issuance of Units). The receivable relating to the consideration settled with the issuance of 13,076,923 Navios Partners’ common units in the amount of $29,423 has been classified contra equity within the consolidated Statements of Changes in Partners’ Capital as “Note receivable”. The receivable from Navios Holdings is payable on maturity in December 2023 and Navios Partners will receive approximately $50,937. Interest will accrue through maturity and will be recognized within “Interest income” for the receivable relating to the cash consideration of $4,050. As of June 30, 2018, the long-term note receivable from Navios Holdings amounted to $4,386 (including the non-cash interest income of $336), presented under the caption “Note receivable from affiliates”. Navios Partners may require Navios Holdings, under certain conditions, to repurchase the loans after the third anniversary of the date of the transaction based on the then outstanding balance of the loans. Others: Navios Partners has entered into an omnibus agreement with Navios Holdings (the “Partners Omnibus Agreement”) in connection with the closing of Navios Partners’ IPO governing, among other things, when Navios Holdings and Navios Partners may compete against each other as well as rights of first offer on certain drybulk carriers. Pursuant to the Partners Omnibus Agreement, Navios Partners generally agreed not to acquire or own Panamax or Capesize drybulk carriers under time charters of three or more years without the consent of an independent committee of Navios Partners. In addition, Navios Holdings has agreed to offer to Navios Partners the opportunity to purchase vessels from Navios Holdings when such vessels are fixed under time charters of three or more years. Navios Partners entered into an omnibus agreement with Navios Acquisition and Navios Holdings (the “Acquisition Omnibus Agreement”) in connection with the closing of Navios Acquisition’s initial vessel acquisition, pursuant to which, among other things, Navios Holdings and Navios Partners agreed not to acquire, charter-in or own liquid shipment vessels, except for containerships and vessels that are primarily employed in operations in South America, without the consent of an independent committee of Navios Acquisition. In addition, Navios Acquisition, under the Acquisition Omnibus Agreement, agreed to cause its subsidiaries not to acquire, own, operate or charter drybulk carriers subject to specific exceptions. Under the Acquisition Omnibus Agreement, Navios Acquisition and its subsidiaries granted to Navios Holdings and Navios Partners, a right of first offer on any proposed sale, transfer or other disposition of any of its drybulk carriers and related charters owned or acquired by Navios Acquisition. Likewise, Navios Holdings and Navios Partners agreed to grant a similar right of first offer to Navios Acquisition for any liquid shipment vessels it might own. These rights of first offer will not apply to a (i) sale, transfer or other disposition of vessels between any affiliated subsidiaries, or pursuant to the terms of any charter or other agreement with a counterparty, or (ii) merger with or into, or sale of substantially all of the assets to, an unaffiliated third party. In connection with the Navios Midstream initial public offering and effective November 18, 2014, Navios Partners entered into an omnibus agreement with Navios Midstream, Navios Acquisition and Navios Holdings pursuant to which Navios Acquisition, Navios Holdings and Navios Partners have agreed not to acquire or own any VLCCs, crude oil tankers, refined petroleum product tankers, LPG tankers or chemical tankers under time charters of five or more years and also providing rights of first offer on certain tanker vessels. In connection with the Navios Containers private placement and listing on the Norwegian over-the-counter market effective June 8, 2017, Navios Partners entered into an omnibus agreement with Navios Containers, Navios Holdings, Navios Acquisition and Navios Midstream, pursuant to which Navios Partners, Navios Holdings, Navios Acquisition and Navios Midstream have granted to Navios Containers a right of first refusal over any containerships to be sold or acquired in the future. The omnibus agreement contains significant exceptions that will allow Navios Partners, Navios Holdings, Navios Acquisition and Navios Midstream to compete with Navios Containers under specified circumstances. On November 15, 2012 (as amended in March 2014), Navios Holdings and Navios Partners entered into an agreement (the “Navios Holdings Guarantee”) by which Navios Holdings will provide supplemental credit default insurance with a maximum cash payment of $20,000. The final settlement of the amount due will take place at anytime but in no case later than December 31, 2019, in accordance with a letter of agreement effective as of December 29, 2017. During the three and six month periods ended June 30, 2018, the Company did not submit any claims to Navios Holdings for charterers’ default under this agreement. During each of the three and six month periods ended June 30, 2017, the Company submitted claims for charterers’ default under this agreement to Navios Holdings for a total amount in each period of $2,276 and $4,527, respectively, net of applicable deductions, of which $2,396 and $4,765 was recorded as “Other income”. As of June 30, 2018, the Company recognized the fair value of the claim amounted to $19,416, including accrued interest and discount unwinding of $97 and $193 for the three and six month periods ended June 30, 2018, respectively, presented under the caption “Amounts due from related parties-long term” in the balance sheet. As of June 30, 2018, Navios Holdings held an 18.2% common unit interest in Navios Partners, represented by 31,053,233 common units and it also held a general partner interest of 2.0%.

Notes Receivable	6 Months Ended
Notes Receivable	Jun. 30, 2018
Disclosure Text Block [Abstract]
Notes Receivable	NOTE 14 – NOTES RECEIVABLE On July 15, 2016, the Company entered into a charter restructuring agreement for the reduction of the hire rate for five Containerships chartered out to Hyundai Merchant Marine Co. (“HMM”) which resulted in a decrease in cash charter hire to be received of approximately $38,461. More specifically, the reduction of the hire rate will be applied as follows: •With effect from (and including) July 18, 2016 until (and including) December 31, 2019, hire rate shall be reduced to $24,400 per day pro rata. •With effect from (and including) January 1, 2020, hire rate shall be restored to the rate of $30,500 per day pro rata until redelivery. In exchange for the reduction of the hire rate, the Company received (i) $7,692 on principal amount of senior, unsecured notes, amortizing subject to available cash flows, accruing interest at 3% per annum payable on maturity in July 2024 and (ii) 3,657 freely tradable securities of HMM (publicly traded at the Stock Market Division of the Korean Exchange). On July 18, 2016, the Company recognized the fair value of the HMM securities totaling $40,277 and also recognized the fair value of the senior unsecured notes totaling $5,931. The total fair value of the non-cash compensation received was recognized as deferred revenue, which will be amortized over the remaining duration of the each time charter. As of June 30, 2018 and December 31, 2017, the outstanding balance of the notes receivable, including accrued interest and discount unwinding, amounted to $6,728 and $6,522, respectively. For the three and six month periods ended June 30, 2018 and 2017, the Company recorded an amount of $3,017 and $6,001, respectively, of deferred revenue amortization in the consolidated Statements of Operations under the caption “Time charter and voyage revenues”. As of June 30, 2018, the outstanding balances of the current and non-current portion of deferred revenue in relation to HMM amounted to $12,102 and $10,467, respectively. During August 2016, the Company sold all the shares for net proceeds on sale of $20,842 resulting in a loss on sale of $19,435, which was presented under the caption “Loss on sale of securities” in the consolidated Statements of Operations for the year ended December 31, 2016 and the proceeds were classified as investing activities in the consolidated Statements of Cash Flows for the year ended December 31, 2016. The Company recognized non-cash interest income and discount unwinding totaling to $104 and $207, respectively, for these instruments under the caption “Interest income” in the consolidated Statements of Operations for the three and six month periods ended June 30, 2018, respectively. On January 12, 2017, the Company sold the vessel the MSC Cristina (see Note 4 — Vessels, net) for a gross sale price of $126,000 and received a cash payment of $107,250 and a note receivable of $18,750 accruing interest at 6% per annum payable in 16 quarterly instalments. As of June 30, 2018, the outstanding balances of the current and non-current note receivable amounted to $4,687 and $7,032, respectively. For the three and six month periods ended June 30, 2018, the Company recorded an amount of $186 and $388, respectively, including accrued interest income of $94 under the caption “Interest income” in the consolidated Statements of Operations.

- Definition

The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses.

+ References + Details

Investment In Affiliates	6 Months Ended
Investment In Affiliates	Jun. 30, 2018
INVESTMENTS IN AFFILIATES [Abstract]
Investment in Affiliates	NOTE 15 – INVESTMENT IN AFFILIATES Navios Europe I: On October 9, 2013, Navios Holdings, Navios Acquisition and Navios Partners established Navios Europe I and have ownership interests of 47.5%, 47.5% and 5.0%, respectively. On December 18, 2013, Navios Europe I acquired ten vessels for aggregate consideration consisting of: (i) cash which was funded with the proceeds of senior loan facilities (the “Senior Loans I”) and loans aggregating $10,000 from Navios Holdings, Navios Acquisition and Navios Partners (collectively, the “Navios Term Loans I”) and (ii) the assumption of a junior participating loan facility (the “Junior Loan I”). In addition to the Navios Term Loans I, Navios Holdings, Navios Acquisition and Navios Partners will also make available to Navios Europe I revolving loans up to $24,100 to fund working capital requirements (collectively, the “Navios Revolving Loans I”). On an ongoing basis, Navios Europe I is required to distribute cash flows (after payment of operating expenses and amounts due pursuant to the terms of the Senior Loans I and repayments of the Navios Revolving Loans I) according to a defined waterfall calculation. Navios Partners evaluated its investment in Navios Europe I under ASC 810 and concluded that Navios Europe I is a variable interest entity (“VIE”) and that they are not the party most closely associated with Navios Europe I and, accordingly, is not the primary beneficiary of Navios Europe I. Navios Partners further evaluated its investment in the common stock of Navios Europe I under ASC 323 and concluded that it has the ability to exercise significant influence over the operating and financial policies of Navios Europe I and, therefore, its investment in Navios Europe I is accounted for under the equity method. As of June 30, 2018 and December 31, 2017, the estimated maximum potential loss by Navios Partners in Navios Europe I would have been $1,705, respectively, excluding accrued interest which represents the Company’s carrying value of the investment of $500 (December 31, 2017: $500) plus the Company’s balance of the Navios Revolving Loans I of $1,205 (December 31, 2017: $1,205), excluding accrued interest, and does not include the undrawn portion of the Navios Revolving Loans I. As of June 30, 2018, the Navios Partners’ portion of the Navios Revolving Loan I outstanding was $1,205. Investment income of $0 was recognized for the six month period ended June 30, 2018. Investment loss of $(1) was recognized in the Statements of Operations under the caption of “Other income” for the six month period ended June 30, 2017. Navios Europe II: On February 18, 2015, Navios Holdings, Navios Acquisition and Navios Partners established Navios Europe II and have ownership interests of 47.5%, 47.5% and 5.0%, respectively. From June 8, 2015 through December 31, 2015, Navios Europe II acquired fourteen vessels for aggregate consideration consisting of: (i) cash consideration of $145,550 (which was funded with the proceeds of a $131,550 senior loan facilities net of loan discount amounting to $3,375 (the “Senior Loans II”) and loans aggregating $14,000 from Navios Holdings, Navios Acquisition and Navios Partners (collectively, the “Navios Term Loans II”); and (ii) the assumption of a junior participating loan facility (the “Junior Loan II”) with a face amount of $182,150 and fair value of $99,147, at the acquisition date. In addition to the Navios Term Loans II, Navios Holdings, Navios Acquisition and Navios Partners have also made available to Navios Europe II revolving loans up to $43,500 to fund working capital requirements (collectively, the “Navios Revolving Loans II”). In March 2017, the availability under the Navios Revolving Loans II was increased by $14,000. On an ongoing basis, Navios Europe II is required to distribute cash flows (after payment of operating expenses, amounts due pursuant to the terms of the Senior Loans and repayments of the Navios Revolving Loans II) according to a defined waterfall calculation. Navios Partners evaluated its investment in Navios Europe II under ASC 810 and concluded that Navios Europe II is a variable interest entity (“VIE”) and that it is not the party most closely associated with Navios Europe II and, accordingly, is not the primary beneficiary of Navios Europe II. Navios Partners further evaluated its investment in the common stock of Navios Europe II under ASC 323 and concluded that it has the ability to exercise significant influence over the operating and financial policies of Navios Europe II and, therefore, its investment in Navios Europe II is accounted for under the equity method. For each of June 30, 2018 and December 31, 2017, the estimated maximum potential loss by Navios Partners in Navios Europe II would have been $10,472, excluding accrued interest, which represents the Company’s carrying value of the investment of $700 for June 30, 2018 (December 31, 2017: $700) plus the Company’s balance of the Navios Revolving Loans II of $9,772 for June 30, 2018 (December 31, 2017: $9,772), excluding accrued interest, and does not include the undrawn portion of the Navios Revolving Loans II. As of June 30, 2018, the Navios Partners’ portion of the Navios Revolving Loan II outstanding was $9,772. Investment income of $0 was recognized for the six month period ended June 30, 2018. Investment loss of $(63) was recognized in the Statements of Operations under the caption of “Other income” for the six month period ended June 30, 2017. Navios Containers: On June 8, 2017, Navios Containers closed its private placement and issued 10,057,645 shares for $50,288 of gross proceeds at a subscription price of $5.00 per share. Navios Partners invested $30,000 and received 6,000,000 shares, and Navios Holdings invested $5,000 and received 1,000,000 shares. Each of Navios Partners and Navios Holdings also received warrants, with a five-year term, for 6.8% and 1.7% of the equity, respectively. On August 29, 2017, Navios Containers closed its private placement and issued 10,000,000 shares for $50,000 of gross proceeds at a subscription price of $5.00 per share. Navios Partners invested $10,000 and received 2,000,000 shares. Navios Partners also received warrants, with a five-year term, for 6.8% of the equity. On November 9, 2017, Navios Containers closed a private placement of 9,090,909 shares at a subscription price of $5.50 per share, resulting in gross proceeds of approximately $50,000. Navios Partners invested $10,000 and received 1,818,182 shares. Navios Partners also received warrants, with a five-year term, for 6.8% of the newly issued equity. On March 13, 2018, Navios Containers closed a private placement of 5,454,546 shares at a subscription price of $5.50 per share, resulting in gross proceeds of approximately $30,000. Navios Partners invested $14,460 and received 2,629,095 shares and Navios Holdings invested $500 and received 90,909 shares. Navios Partners and Navios Holdings also received 370,909 and 9,273 warrants, with a five-year term, respectively. As of June 30, 2018, Navios Partners held 12,447,277 common shares and received 36.0% of the equity, and Navios Holdings held 1,090,909 common shares and received 3.2% of the equity of Navios Containers. As of June 30, 2018 and December 31, 2017, the carrying value of the investment in Navios Containers was $68,037 and $50,922, respectively. As of June 30, 2018, the market value of the investment in Navios Containers was $67,389. Investment income of $1,614 and $2,654 was recognized in the Statements of Operations under the caption of “Equity in net earnings of affiliated companies” for the three and six month period ended June 30, 2018, respectively.

Cash Distributions and Earnings per Unit

6 Months Ended

Jun. 30, 2018

CASH DISTRIBUTIONS AND EARNINGS PER UNIT [Abstract]

Cash Distributions and Earnings Per Unit

NOTE 16 – CASH DISTRIBUTIONS AND EARNINGS PER UNIT

Navios Partners intends to make distributions to the holders of common units on a quarterly basis, to the extent and as may be declared by the Board and to the extent it has sufficient cash on hand to pay the distribution after the Company establishes cash reserves and pays fees and expenses. There is no guarantee that Navios Partners will pay a quarterly distribution on the common units in any quarter. On February 3, 2016, Navios Partners announced that its Board of Directors decided to suspend the quarterly cash distributions to its unitholders, including the distribution for the quarter ended December 31, 2015. In March 2018, the board determined to reinstate a distribution and any continued distribution will be at the discretion of our Board of Directors, taking into consideration the terms of its partnership agreement. The Company is prohibited from making any distributions to unitholders if it would cause an event of default, or an event of default exists, under its existing credit facilities.

There is incentive distribution rights held by the General Partner, which are analyzed as follows:


		Marginal Percentage Interest in Distributions
	Total Quarterly Distribution Target Amount	Common Unitholders	General Partner
Minimum Quarterly Distribution	up to $0.35	98%	2%
First Target Distribution	up to $0.4025	98%	2%
Second Target Distribution	above $0.4025 up to $0.4375	85%	15%
Third Target Distribution	above $0.4375 up to $0.525	75%	25%
Thereafter	above $0.525	50%	50%

The first 98% of the quarterly distribution is paid to all common units holders. The incentive distributions rights (held by the General Partner) apply only after a minimum quarterly distribution of $0.4025.

In April 2018, the Board of Directors of Navios Partners authorized its quarterly cash distribution for the three month period ended March 31, 2018 of $0.02 per unit. The distribution was paid on May 14, 2018 to all unitholders of record of common and general partner units on May 10, 2018. The aggregate amount of the declared distribution was $3,420.

In July 2018, the Board of Directors of Navios Partners authorized its quarterly cash distribution for the three month period ended June 30, 2018 of $0.02 per unit. The distribution is payable on August 10, 2018 to all unitholders of record as of August 7, 2018. The aggregate amount of the declared distribution is anticipated to be $3,420.

Navios Partners calculates earnings per unit by allocating reported net income for each period to each class of units based on the distribution waterfall for available cash specified in Navios Partners’ partnership agreement, net of the unallocated earnings (or losses). Basic earnings/(losses) per unit is determined by dividing net income/(loss) attributable to Navios Partners common unitholders by the weighted average number of common units outstanding during the period. Diluted earnings per unit is calculated in the same manner as basic earnings per unit, except that the weighted average number of outstanding units increased to include the dilutive effect of outstanding unit options or phantom units. Net loss per unit undistributed is determined by taking the distributions in excess of net income and allocating between common units and general partner units on a 98%-2% basis. There were no options or phantom units outstanding during the six month periods ended June 30, 2018 and 2017.

The calculations of the basic and diluted earnings per unit are presented below.


	Three Month Period Ended		Six Month Period Ended
	June 30, 2018	June 30, 2017	June 30, 2018		June 30, 2017
Net (loss)/ income	$(29,533)	$4,090		$(24,055)		$(1,563)
(Loss)/ Earnings attributable to:
Common unit holders	(28,942)	4,009		(23,574)		(1,532)
Weighted average units outstanding (basic and diluted)
Common unit holders	164,866,385	145,396,276		159,675,656		119,013,847
(Loss)/ Earnings per unit (basic and diluted):
Common unit holders	$(0.18)	$0.03		$(0.15)		$(0.01)
Earnings per unit — distributed (basic and diluted):
Common unit holders	$0.02	$—		$0.04		$—
(Loss)/ Earnings per unit — undistributed (basic and diluted):
Common unit holders	$(0.20)	$0.03		$(0.19)		$(0.01)

Potential common units of 1,353,335 and 2,040,000 relating to unvested restricted common units for each of the three and six month periods ended June 30, 2018 and 2017, respectively, have an anti-dilutive effect (i.e. those that increase income per unit or decrease loss per unit) and are therefore excluded from the calculation of diluted earnings per unit.

Other Income	6 Months Ended
Other Income	Jun. 30, 2018
OTHER INCOME [Abstract]
Other Income	NOTE 17 – OTHER INCOME On November 15, 2012 (as amended in March 2014), Navios Holdings and Navios Partners entered into an agreement (the “Navios Holdings Guarantee”) by which Navios Holdings will provide supplemental credit default insurance with a maximum cash payment of $20,000. The final settlement of the amount due will take place at anytime but in no case later than December 31, 2019, in accordance with a letter of agreement effective as of December 29, 2017. During the three and six month periods ended June 30, 2018, the Company did not submit any claims to Navios Holdings for charterers’ default under this agreement. During each of the three and six month periods ended June 30, 2017, the Company submitted claims for charterers’ default under this agreement to Navios Holdings for a total amount in each period of $2,276 and $4,527, respectively, net of applicable deductions, of which $2,396 and $4,765 was recorded as “Other income”. As of June 30, 2018, the Company recognized the fair value of the claim amounted to $19,416, including accrued interest and discount unwinding of $97 and $193 for the three and six month periods ended June 30, 2018, respectively, presented under the caption “Amounts due from related parties-long term” in the balance sheet.

Other Expense	6 Months Ended
Other Expense	Jun. 30, 2018
Other Expense [Abstract]
Other Expense	NOTE 18 – OTHER EXPENSE As of June 30, 2018, the amount of $777 related to the discount of the Navios Holdings Guarantee is included in line item “Other expense” of the interim condensed Statements of Operations. As of June 30, 2017, the amount of $1,495 relating to an allowance for doubtful accounts is included in line item “Other expense” of the interim condensed Statements of Operations. On January 12, 2017, Navios Partners sold the vessel MSC Cristina, which was classified as held for sale as of December 31, 2016, to an unrelated third party. The carrying value of the vessel was $125,000 and sale proceeds less costs to sell totaled $123,740. As of June 30, 2017, a loss of $1,260 had been recognized under the line item “Other expense” of the interim condensed Statements of Operations.

Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2018
SUBSEQUENT EVENTS [Abstract]
Subsequent Events	NOTE 19 – SUBSEQUENT EVENTS On July 25, 2018, the Board of Directors of Navios Partners authorized its quarterly cash distribution for the three month period ended June 30, 2018 of $0.02 per unit. The distribution is payable on August 10, 2018 to all unitholders of record of common and general partner units on August 7, 2018. The aggregate amount of the declared distribution is anticipated to be $3,420. In July 2018, Navios Partners agreed to acquire the Navios Sphera, a 2016-built Panamax of 84,872 dwt and the Navios Mars, a 2016-built Capesize vessel of 181,259 dwt from its affiliate, Navios Holdings, for a purchase price of $79,000. The acquisition of the vessels is expected to be partially financed with a $44,000 new term loan facility and the balance with available cash. The loan has an amortization profile of five years, matures in July 2023 and bears interest at LIBOR plus 290 bps per annum. On July 2, 2018, Navios Partners sold to its affiliate, Navios Containers, the YM Unity and the YM Utmost, two 2006-built containerships of 8,204 TEU each, for a sale price of $67,000. The loss on sale of the vessels amounted to $37,860 and was recognized in the second quarter of 2018. Navios Partners used a portion of the sale proceeds to repay $20,200 of its outstanding debt. As a result of the sales, the YM Unity and the YM Utmost were released from security of the Term Loan B Facility. In exchange, four drybulk vessels and $4,000 in cash substituted the two vessels as collateral to the Term Loan B Facility.

Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2018

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Basis Of Presentation

Change in Accounting Principle

Principles of consolidation

Investments in Affiliates

Subsidiaries

The accompanying consolidated financial statements include the following entities:


		Country of	Statements of operations
Company name	Vessel name	incorporation	2018	2017
Libra Shipping Enterprises Corporation	Navios Libra II	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Alegria Shipping Corporation	Navios Alegria	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Felicity Shipping Corporation	Navios Felicity	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Gemini Shipping Corporation(1)	Navios Gemini S	Marshall Is.	—	1/01 – 06/30
Galaxy Shipping Corporation	Navios Galaxy I	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Aurora Shipping Enterprises Ltd.	Navios Hope	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Palermo Shipping S.A.(2)	Navios Apollon	Marshall Is.	—	1/01 – 04/21
Fantastiks Shipping Corporation	Navios Fantastiks	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Sagittarius Shipping Corporation	Navios Sagittarius	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Hyperion Enterprises Inc.	Navios Hyperion	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Chilali Corp.	Navios Aurora II	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Surf Maritime Co.	Navios Pollux	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Pandora Marine Inc.	Navios Melodia	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Customized Development S.A.	Navios Fulvia	Liberia	1/01 – 06/30	1/01 – 06/30
Kohylia Shipmanagement S.A.	Navios Luz	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Orbiter Shipping Corp.	Navios Orbiter	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Floral Marine Ltd.	Navios Buena Ventura	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Golem Navigation Limited	Navios Soleil	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Kymata Shipping Co.	Navios Helios	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Joy Shipping Corporation	Navios Joy	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Micaela Shipping Corporation	Navios Harmony	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Pearl Shipping Corporation	Navios Sun	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Velvet Shipping Corporation	Navios La Paix	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Perigiali Navigation Limited	Navios Beaufiks	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Finian Navigation Co.	Navios Ace	Marshall Is.	1/01 – 06/30	06/09 – 06/30
Ammos Shipping Corp.	Navios Prosperity I	Marshall Is.	1/01 – 06/30	06/07 – 06/30
Wave Shipping Corp.	Navios Libertas	Marshall Is.	1/01 – 06/30	—
Casual Shipholding Co.	Navios Sol	Marshall Is.	1/01 – 06/30	—
Avery Shipping Company	Navios Symphony	Marshall Is.	1/01 – 06/30	—
Coasters Ventures Ltd.	Navios Christine B	Marshall Is.	1/01 – 06/30	—
Ianthe Maritime S.A.	Navios Aster	Marshall Is.	1/01 – 06/30	—
Rubina Shipping Corporation	Hyundai Hongkong	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Topaz Shipping Corporation	Hyundai Singapore	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Beryl Shipping Corporation	Hyundai Tokyo	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Cheryl Shipping Corporation	Hyundai Shanghai	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Christal Shipping Corporation	Hyundai Busan	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Fairy Shipping Corporation(3)	YM Utmost	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Limestone Shipping Corporation(3)	YM Unity	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Dune Shipping Corp.(4)	MSC Cristina	Marshall Is.	—	1/01 – 01/12
Citrine Shipping Corporation	—	Marshall Is.	—	—
Cavalli Navigation Inc.	—	Marshall Is.	—	—
Seymour Trading Limited	Navios Altair I	Marshall Is.	06/07 – 06/30	—
Goldie Services Company	Navios Symmetry	Marshall Is.	05/21 – 06/30	—
Andromeda Shiptrade Limited	Navios Apollon I	Marshall Is.	05/09 – 06/30	—
Chartered-in vessels
Cavos Navigation Co.	—	Marshall Is.	—	—
Other
Prosperity Shipping Corporation	—	Marshall Is.	—	—
Aldebaran Shipping Corporation	—	Marshall Is.	—	—
JTC Shipping and Trading Ltd.(5)	Holding Company	Malta	1/01 – 06/30	1/01 – 06/30
Navios Maritime Partners L.P.	N/A	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Navios Maritime Operating LLC.	N/A	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Navios Partners Finance (US) Inc.	Co-Borrower	Delaware	1/01 – 06/30	1/01 – 06/30
Navios Partners Europe Finance Inc.	Sub-Holding Company	Marshall Is.	1/01 – 06/30	1/01 – 06/30

(1) The vessel was sold on December 21, 2017 (see Note 4 — Vessels, net).

(2) The vessel was sold on April 21, 2017 (see Note 4 — Vessels, net).

(3) The vessel has been classified as held for sale as at June 30, 2018 and was sold on July 2, 2018 (see Note 5 – Vessels held for sale).

(4) The vessel was sold on January 12, 2017 (see Note 4 — Vessels, net).

(5) Not a vessel-owning subsidiary and only holds right to charter-in contracts.

Revenue and Expense Recognition

Revenue from vessels operating in pooling and profit sharing arrangements amounted to $2,762 and $3,664 for the six month periods ended June 30, 2018 and 2017, respectively.

Recent Accounting Pronouncements

Summary Of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Entities included in consolidation


		Country of	Statements of operations
Company name	Vessel name	incorporation	2018	2017
Libra Shipping Enterprises Corporation	Navios Libra II	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Alegria Shipping Corporation	Navios Alegria	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Felicity Shipping Corporation	Navios Felicity	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Gemini Shipping Corporation(1)	Navios Gemini S	Marshall Is.	—	1/01 – 06/30
Galaxy Shipping Corporation	Navios Galaxy I	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Aurora Shipping Enterprises Ltd.	Navios Hope	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Palermo Shipping S.A.(2)	Navios Apollon	Marshall Is.	—	1/01 – 04/21
Fantastiks Shipping Corporation	Navios Fantastiks	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Sagittarius Shipping Corporation	Navios Sagittarius	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Hyperion Enterprises Inc.	Navios Hyperion	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Chilali Corp.	Navios Aurora II	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Surf Maritime Co.	Navios Pollux	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Pandora Marine Inc.	Navios Melodia	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Customized Development S.A.	Navios Fulvia	Liberia	1/01 – 06/30	1/01 – 06/30
Kohylia Shipmanagement S.A.	Navios Luz	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Orbiter Shipping Corp.	Navios Orbiter	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Floral Marine Ltd.	Navios Buena Ventura	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Golem Navigation Limited	Navios Soleil	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Kymata Shipping Co.	Navios Helios	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Joy Shipping Corporation	Navios Joy	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Micaela Shipping Corporation	Navios Harmony	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Pearl Shipping Corporation	Navios Sun	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Velvet Shipping Corporation	Navios La Paix	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Perigiali Navigation Limited	Navios Beaufiks	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Finian Navigation Co.	Navios Ace	Marshall Is.	1/01 – 06/30	06/09 – 06/30
Ammos Shipping Corp.	Navios Prosperity I	Marshall Is.	1/01 – 06/30	06/07 – 06/30
Wave Shipping Corp.	Navios Libertas	Marshall Is.	1/01 – 06/30	—
Casual Shipholding Co.	Navios Sol	Marshall Is.	1/01 – 06/30	—
Avery Shipping Company	Navios Symphony	Marshall Is.	1/01 – 06/30	—
Coasters Ventures Ltd.	Navios Christine B	Marshall Is.	1/01 – 06/30	—
Ianthe Maritime S.A.	Navios Aster	Marshall Is.	1/01 – 06/30	—
Rubina Shipping Corporation	Hyundai Hongkong	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Topaz Shipping Corporation	Hyundai Singapore	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Beryl Shipping Corporation	Hyundai Tokyo	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Cheryl Shipping Corporation	Hyundai Shanghai	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Christal Shipping Corporation	Hyundai Busan	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Fairy Shipping Corporation(3)	YM Utmost	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Limestone Shipping Corporation(3)	YM Unity	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Dune Shipping Corp.(4)	MSC Cristina	Marshall Is.	—	1/01 – 01/12
Citrine Shipping Corporation	—	Marshall Is.	—	—
Cavalli Navigation Inc.	—	Marshall Is.	—	—
Seymour Trading Limited	Navios Altair I	Marshall Is.	06/07 – 06/30	—
Goldie Services Company	Navios Symmetry	Marshall Is.	05/21 – 06/30	—
Andromeda Shiptrade Limited	Navios Apollon I	Marshall Is.	05/09 – 06/30	—
Chartered-in vessels
Cavos Navigation Co.	—	Marshall Is.	—	—
Other
Prosperity Shipping Corporation	—	Marshall Is.	—	—
Aldebaran Shipping Corporation	—	Marshall Is.	—	—
JTC Shipping and Trading Ltd.(5)	Holding Company	Malta	1/01 – 06/30	1/01 – 06/30
Navios Maritime Partners L.P.	N/A	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Navios Maritime Operating LLC.	N/A	Marshall Is.	1/01 – 06/30	1/01 – 06/30
Navios Partners Finance (US) Inc.	Co-Borrower	Delaware	1/01 – 06/30	1/01 – 06/30
Navios Partners Europe Finance Inc.	Sub-Holding Company	Marshall Is.	1/01 – 06/30	1/01 – 06/30

Cash and Cash Equivalents (Tables)

6 Months Ended

Jun. 30, 2018

CASH AND CASH EQUIVALENTS [Abstract]

Cash and cash equivalents


	June 30, 2018	December 31, 2017
Cash and cash equivalents	$ 40,577	$ 24,047
Restricted cash	402	5,886

Total cash and cash equivalents and restricted cash	$ 40,979	$ 29,933

Vessels, Net (Tables)

6 Months Ended

Jun. 30, 2018

VESSELS, NET [Abstract]

Vessels, Net


Vessels	Cost	Accumulated Depreciation	Net Book Value
Balance December 31, 2016	$1,354,298	$(317,092)	$1,037,206
Additions	158,241	(56,210)	102,031
Disposals	(26,233)	18,688	(7,545)
Vessel impairment losses	(66,228)	33,551	(32,677)

Balance December 31, 2017	$1,420,078	$(321,063)	$1,099,015
Additions	36,271	(27,240)	9,031
Vessel impairment losses (see Note 5)	(51,187)	15,431	(35,756)
Transfer to vessels held for sale (see Note 5)	(67,000)	—	(67,000)

Balance June 30, 2018	$1,338,162	$(332,872)	$1,005,290

Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2018

INTANGIBLE ASSETS [Abstract]

Intangible Assets


	Cost	Accumulated Amortization	Net Book Value
Favorable lease terms December 31, 2016	$83,716	$(64,764)	$18,952
Additions	—	(10,872)	(10,872)

Favorable lease terms December 31, 2017	$83,716	$(75,636)	$8,080
Additions	—	(2,032)	(2,032)

Favorable lease terms June 30, 2018	$83,716	$(77,668)	$6,048

Amortization of Favorable Lease Terms


	Three Month Period Ended		Six Month Period Ended
	June 30, 2018	June 30, 2017	June 30, 2018	June 30, 2017
Favorable lease terms	$(1,016)	$(5,275)	$(2,032)	$(8,446)

Total	$(1,016)	$(5,275)	$(2,032)	$(8,446)

Aggregate Amortizations of Intangible Assets


Year	Amount
2019	2,299
2020	1,166
2021	1,166
2022 and thereafter	1,417

	$6,048

Borrowings (Tables)

6 Months Ended

Jun. 30, 2018

Borrowings [Abstract]

Borrowings


	June 30, 2018	December 31, 2017
Term Loan B facility	$ 430,004	$ 441,471
Credit facilities	78,205	69,161

Total borrowings	$ 508,209	$ 510,632
Less: Long-term unamortized discount	(8,715)	(10,824)
Less: Current portion of long-term debt, net	(45,012)	(26,586)
Less: Deferred finance costs, net	(5,032)	(6,345)

Long-term debt, net	$ 449,450	$ 466,877

Maturities of Long Term Debt


Year	Amount
2019	$51,550
2020	30,815
2021	409,951
2022	11,129
2023 and thereafter	4,764

	$508,209

Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2018

Derivative Fair Value Of Financial Instruments [Abstract]

Fair Value Of Financial Instruments


	June 30, 2018		December 31, 2017
	Book Value	Fair Value	Book Value	Fair Value
Cash and cash equivalents	$40,577	$40,577	$24,047	$24,047
Restricted cash	$402	$402	$5,886	$5,886
Loans receivable from affiliates	$11,861	$11,861	$11,706	$11,706
Amounts due from related parties, long-term	$44,009	$44,009	$34,891	$34,891
Amounts due from related parties, short-term	$11,735	$11,735	$10,545	$10,545
Term Loan B Facility, net	$(416,920)	$(430,542)	$(425,144)	$(441,471)
Other long-term debt, net	$(77,542)	$(78,205)	$(68,319)	$(69,161)
Notes receivable, net of current portion	$13,760	$13,760	$15,897	$15,897
Receivable from affiliates	$4,386	$4,386	$4,253	$4,253

Fair Value Measurements On a Nonrecurring Basis


	Fair Value Measurements at June 30, 2018
	Total	Level I	Level II	Level III
Cash and cash equivalents	$40,577	$40,577	$—	$—
Restricted cash	$402	$402	$—	$—
Loans receivable from affiliates	$11,861	$—	$11,861	$—
Term Loan B facility, net(1)	$(430,542)	$—	$(430,542)	$—
Other long-term debt, net (1)	$(78,205)	$—	$(78,205)	$—
Notes receivable, net of current portion(2)	$13,760	$—	$13,760	$—
Amounts due from related parties, long-term	$44,009	$—	$44,009	$—
Amounts due from related parties, short-term	$11,735	$—	$11,735	$—
Receivable from affiliates	$4,386	$—	$4,386	$—

	Fair Value Measurements at December 31, 2017
	Total	Level I	Level II	Level III
Cash and cash equivalents	$24,047	$24,047	$—	$—
Restricted cash	$5,886	$5,886	$—	$—
Loans receivable from affiliates	$11,706	$—	$11,706	$—
Term Loan B facility, net(1)	$(441,471)	$—	$(441,471)	$—
Other long-term debt, net(1)	$(69,161)	$—	$(69,161)	$—
Notes receivable, net of current portion(2)	$15,897	$—	$15,897	$—
Amounts due from related parties, long-term	$34,891	$—	$34,891	$—
Amounts due from related parties, short-term	$10,545	$—	$10,545	$—
Receivable from affiliates	$4,253	$—	$4,253	$—

The estimated fair value of our financial instruments that are measured at fair value on a non-recurring basis, categorized based upon the fair value hierarchy, are as follows:


	Fair Value Measurements at June 30, 2018
	Total	Level I	Level II	Level III
Vessels held for sale (for YM Unity and YM Utmost)	$67,000	$—	$67,000	$—


	Fair Value Measurements at December 31, 2017
	Total	Level I	Level II	Level III
Vessels, net (for Navios Gemini S)	$4,078	$—	$4,078	$—

(2)The fair value is estimated based on currently available information on the Company’s counterparty with similar contract terms, interest rate and remaining maturities.

Segment Information (Tables)

6 Months Ended

Jun. 30, 2018

SEGMENT INFORMATION [Abstract]

Segments Summarized Financial Information


	Navios Partners Operations		Navios Containers Operations											Total
	Three Month	Three Month	Three Month			Period from			Eliminations					Three Month	Three Month
	Period Ended	Period Ended	Period Ended			April 28, 2017			for the period					Period Ended	Period Ended
	June 30,	June 30,	June 30,			June 30,			from April 28, 2017 to					June 30,	June 30,
	2018	2017	2018			2017			June 30, 2017					2018	2017
Revenue	$58,196	$46,916		$—			$3,102			—		$58,196				$50,018
Management fees	(17,381)	(14,760)		—			(702)			—		(17,381)				(15,462)
Interest expense and finance cost, net	(10,794)	(8,138)		—			(80)			73		(10,794)				(8,145)
Depreciation and amortization	(14,355)	(17,360)		—			(1,320)			—		(14,355)				(18,680)
Net (loss)/ income	(29,533)	7,987		—			881			(4,423)		(29,533)				4,445
Total assets	1,307,310	1,275,942		—			97,333			(45,723)		1,307,310				1,327,552
Capital expenditures	(35,938)	(95,247)		—			(44,567)			30,000		(35,938)				(109,814)
Investment in affiliates	69,237	31,192		—			—			(30,000)		69,237				1,192
Cash and cash equivalents	40,577	44,813		—			34,936			—		40,577				79,749
Restricted cash	402	6,299		—			—			—		402				6,299
Long-term debt (including current and non-current portion), net	$494,462	$441,347		—			$33,670			—		$494,462				$475,017

	Navios Partners Operations		Navios Containers Operations											Total
	Six Month	Six Month	Six Month			Period from			Eliminations					Six Month	Six Month
	Period Ended	Period Ended	Period Ended			April 28, 2017			for the period					Period Ended	Period Ended
	June 30,	June 30,	June 30,			to June 30,			from April 28, 2017 to					June 30,	June 30,
	2018	2017	2018			2017			June 30, 2017					2018	2017
Revenue	$111,248	$89,327			$—			$3,102			—		$111,248				$94,429
Management fees	(34,072)	(29,103)			—			(702)			—		(34,072)				(29,805)
Interest expense and finance cost, net	(20,647)	(18,493)			—			(80)			73		(20,647)				(18,500)
Depreciation and amortization	(29,272)	(34,135)			—			(1,320)			—		(29,272)				(35,455)
Net (loss)/ income	(24,055)	2,334			—			881			(4,423)		(24,055)				(1,208)
Total assets	1,307,310	1,275,942			—			97,333			(45,723)		1,307,310				1,327,552
Capital expenditures	(36,285)	2,798			—			(44,567)			30,000		(36,285)				(11,769)
Investment in affiliates	69,237	31,192			—			—			(30,000)		69,237				1,192
Cash and cash equivalents	40,577	44,813			—			34,936			—		40,577				79,749
Restricted cash	402	6,299			—			—			—		402				6,299
Long-term debt (including current and non-current portion), net	$494,462	$441,347			—			$33,670			—		$494,462				$475,017

Revenue By Geographic Region


	Three Month Period ended June 30, 2018	Three Month Period ended June 30, 2017	Six Month Period ended June 30, 2018	Six Month Period ended June 30, 2017
Asia	$33,574	$30,250	$63,945	$55,047
Europe	17,770	10,217	33,290	19,683
North America	5,200	5,161	11,025	9,654
Australia	1,652	4,390	2,988	8,045

Total	$58,196	$50,018	$111,248	$92,429

Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2018

COMMITMENTS AND CONTINGENCIES [Abstract]

Future Minimum Contractual Obligations


	Amount
2019	$ 22,970
2020	1,630
2021	2,172
2022	2,172
2023	2,104
2024 and thereafter	12,739

	$ 43,787

Cash Distributions and Earnings per Unit (Tables)

6 Months Ended

Jun. 30, 2018

CASH DISTRIBUTIONS AND EARNINGS PER UNIT [Abstract]

Schedule Of Incentive Distributions Made To General Partners Or Unitholders By Distribution


		Marginal Percentage Interest in Distributions
	Total Quarterly Distribution Target Amount	Common Unitholders	General Partner
Minimum Quarterly Distribution	up to $0.35	98%	2%
First Target Distribution	up to $0.4025	98%	2%
Second Target Distribution	above $0.4025 up to $0.4375	85%	15%
Third Target Distribution	above $0.4375 up to $0.525	75%	25%
Thereafter	above $0.525	50%	50%

Schedule Of Earnings Per Unit, Basic And Diluted


	Three Month Period Ended		Six Month Period Ended
	June 30, 2018	June 30, 2017	June 30, 2018		June 30, 2017
Net (loss)/ income	$(29,533)	$4,090		$(24,055)		$(1,563)
(Loss)/ Earnings attributable to:
Common unit holders	(28,942)	4,009		(23,574)		(1,532)
Weighted average units outstanding (basic and diluted)
Common unit holders	164,866,385	145,396,276		159,675,656		119,013,847
(Loss)/ Earnings per unit (basic and diluted):
Common unit holders	$(0.18)	$0.03		$(0.15)		$(0.01)
Earnings per unit — distributed (basic and diluted):
Common unit holders	$0.02	$—		$0.04		$—
(Loss)/ Earnings per unit — undistributed (basic and diluted):
Common unit holders	$(0.20)	$0.03		$(0.19)		$(0.01)

Description of Business (Details)	2 Months Ended	5 Months Ended	6 Months Ended		8 Months Ended	10 Months Ended
Description of Business (Details)	Mar. 13, 2018 USD ($) $ / shares shares	Jun. 08, 2017 USD ($) $ / shares shares	Jun. 30, 2018 shares	Jun. 30, 2017 USD ($)	Aug. 29, 2017 USD ($) $ / shares shares	Nov. 09, 2017 USD ($) $ / shares shares	Dec. 31, 2017 shares
Entity Information [Line Items]
Formation date			Aug. 07, 2007
General partner, Name			Navios GP L.L.C.
Date of initial public offering			Nov. 16, 2007
General partner units outstanding			3,420,203				3,016,284
Common units outstanding			167,589,764				147,797,720
Trading Symbol			NMM
Noncontrolling Interest, Increase from Subsidiary Equity Issuance \| $				$ 17,323,000
Number of units received			167,589,764				147,797,720
Navios Holdings
Entity Information [Line Items]
Ownership percentage of Navios Holdings			20.20%
Navios Holdings' general partner interest in Navios Partners			2.00%
Common units outstanding			31,053,233
Navios Containers
Entity Information [Line Items]
Entity Incorporation, Country Name			the Republic of the Marshall Islands
Entity Incorporation, Date of Incorporation			Apr. 28, 2017
Navios Containers
Entity Information [Line Items]
Common units outstanding			12,447,277
Sale of Stock, Percentage of Ownership after Transaction			36.00%
Navios Containers \| Navios Holdings
Entity Information [Line Items]
Common units outstanding			1,090,909
Sale of Stock, Percentage of Ownership after Transaction			3.20%
Private Placement \| Navios Containers
Entity Information [Line Items]
Sale Of Stock Number Of Shares Issued In Transaction	5,454,546	10,057,645			10,000,000	9,090,909
Proceeds from Issuance of Private Placement \| $	$ 30,000,000	$ 50,288,000			$ 50,000,000	$ 50,000,000
Sale of Stock, Price Per Share \| $ / shares	$ 5.5	$ 5			$ 5	$ 5.5
Private Placement \| Navios Holdings \| Navios Containers
Entity Information [Line Items]
Noncontrolling Interest, Increase from Subsidiary Equity Issuance \| $		$ 5,000,000
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		9.90%
Private Placement \| Navios Containers
Entity Information [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent \| $	$ 14,460,000	$ 30,000,000			$ 10,000,000	$ 10,000,000
Sale of Stock, Percentage of Ownership after Transaction		59.70%
Number of units received	2,629,095	6,000,000			2,000,000	1,818,182
Private Placement \| Navios Containers \| Navios Holdings
Entity Information [Line Items]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent \| $	$ 500,000
Number of units received	90,909	1,000,000
Warrants \| Navios Containers \| Expected Term
Entity Information [Line Items]
Sale of Stock, Percentage of Ownership after Transaction		6.80%			6.80%	6.80%
Warrants, Expected term	5 years	5 years			5 years	5 years
Number of warrants received	370,909
Warrants \| Navios Holdings \| Navios Containers \| Expected Term
Entity Information [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners		1.70%
Warrants, Expected term	5 years	5 years
Number of warrants received	9,273
NOTC \| Navios Containers
Entity Information [Line Items]
Trading Symbol			NMCI
Navios Containers Vessels \| Navios Containers
Entity Information [Line Items]
Number Of Vessels Acquired		5
Containership Capacity		4,250
Payments to acquire vessels and the chartered out contracts \| $		$ 64,000,000
Charter Hire Daily Rate \| $		$ 26,850
Number Of Vessels To Be Acquired		9
Number of vessels		14

Summary of Significant Accounting Policies - Schedule of Entities (Table) (Details)

6 Months Ended

Jun. 30, 2018

Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash	$ 402	$ 5,886	$ 6,299
Retention Accounts
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash	$ 402	386
Letter of guarantee
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash		$ 5,500

Vessels, Net (Details) $ in Thousands			3 Months Ended		4 Months Ended		5 Months Ended				6 Months Ended			7 Months Ended		8 Months Ended	9 Months Ended	11 Months Ended	12 Months Ended
Vessels, Net (Details) $ in Thousands	Jan. 12, 2017 USD ($)	Jan. 09, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	May 09, 2018 USD ($)	Apr. 21, 2017 USD ($)	Jun. 07, 2018 USD ($)	May 21, 2018 USD ($)	Jun. 09, 2017 USD ($)	Jun. 07, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jul. 10, 2017 USD ($)	Jun. 30, 2017 USD ($)	Aug. 11, 2017 USD ($)	Jul. 17, 2017 USD ($)	Aug. 21, 2017 USD ($)	Sep. 20, 2017 USD ($)	Nov. 27, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 21, 2017 USD ($)	Dec. 31, 2016 USD ($)
Property Plant And Equipment [Line Items]
Contractual Obligation			$ 43,787								$ 43,787
Vessel impairment losses			37,860	$ 0							37,860		$ 0
Vessels, net			$ 1,005,290								1,005,290								$ 1,099,015
Net cash proceeds from sale of vessels											0		109,740
Gain / (Loss) on sale of vessel											$ 0		(1,260)
Vessel held and used, impairment losses																			30,304
Navios Altair I
Property Plant And Equipment [Line Items]
Vessel year built											2006
Vessel type											Panamax
Vessel capacity in DWT											74,475
Acquisition cost							$ 11,542
Navios Symmetry
Property Plant And Equipment [Line Items]
Vessel year built											2006
Vessel type											Panamax
Vessel capacity in DWT											74,381
Acquisition cost								$ 11,610
Navios Apollon I
Property Plant And Equipment [Line Items]
Vessel year built											2005
Vessel type											Panamax
Vessel capacity in DWT											87,052
Acquisition cost					$ 13,119
Navios Symphony
Property Plant And Equipment [Line Items]
Vessel year built											2010
Vessel type											Capesize
Vessel capacity in DWT											178,132
Acquisition cost																	$ 27,961
Navios Aster
Property Plant And Equipment [Line Items]
Vessel year built											2010
Vessel type											Capesize
Vessel capacity in DWT											179,314
Acquisition cost																$ 28,855
Navios Christine B
Property Plant And Equipment [Line Items]
Vessel year built											2009
Vessel type											Ultra-Handymax
Vessel capacity in DWT											58,058
Acquisition cost														$ 14,030
Navios Sol
Property Plant And Equipment [Line Items]
Vessel year built											2009
Vessel type											Capesize
Vessel capacity in DWT											180,274
Acquisition cost															$ 28,607
Navios Libertas
Property Plant And Equipment [Line Items]
Vessel year built											2007
Vessel type											Panamax
Vessel capacity in DWT											75,511
Acquisition cost												$ 13,737
Navios Ace
Property Plant And Equipment [Line Items]
Vessel year built											2011
Vessel type											Capesize
Vessel capacity in DWT											179,016
Acquisition cost									$ 31,364
Navios Prosperity I
Property Plant And Equipment [Line Items]
Vessel year built											2007
Vessel type											Panamax
Vessel capacity in DWT											75,527
Acquisition cost										$ 13,687
MSC Cristina
Property Plant And Equipment [Line Items]
Vessels, net	$ 142,193
Net cash proceeds from sale of vessels	$ 125,000
Gain / (Loss) on sale of vessel													$ (1,260)
Navios Gemini S
Property Plant And Equipment [Line Items]
Vessels, Fair value																			4,078
Vessel impairment losses																			$ 2,373
Dry dock and special survey costs, net																				$ 502
Vessels, net																				6,451
Net cash proceeds from sale of vessels																				$ 4,078
Sale price agreed in Memorandum of Agreement																		$ 4,078
Navios Apollon
Property Plant And Equipment [Line Items]
Vessel impairment losses																					$ 10,008
Dry dock and special survey costs, net						$ 782
Vessels, net						14,758
Net cash proceeds from sale of vessels						$ 4,750
Sale price agreed in Memorandum of Agreement		$ 4,750

Vessel Held for Sale (Details) $ in Thousands	4 Months Ended	6 Months Ended	12 Months Ended
Vessel Held for Sale (Details) $ in Thousands	Apr. 27, 2018 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Long Lived Assets Held-for-sale [Line Items]
Vessels held for sale, fair value		$ 67,000	$ 0
Vessel impairment loss			30,304
Vessels, net		$ 1,005,290	$ 1,099,015
YM Unity
Long Lived Assets Held-for-sale [Line Items]
Vessel Year Built		2006
Containership Capacity		8,204
YM Utmost
Long Lived Assets Held-for-sale [Line Items]
Vessel Year Built		2006
Containership Capacity		8,204
YM Unity and YM Utmost
Long Lived Assets Held-for-sale [Line Items]
Sale Price Contractual Agreement	$ 67,000
Vessels held for sale, fair value		$ 67,000
Vessel impairment loss		37,860
Dry dock and special survey costs, net		2,104
Vessels, net		$ 104,860

Intangible Assets - Aggregate Amortizations (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
INTANGIBLE ASSETS [Abstract]
2019	$ 2,299
2020	1,166
2021	1,166
2022 and thereafter	1,417
Total	$ 6,048	$ 8,080	$ 18,952

Intangible Assets (Details) $ in Thousands	6 Months Ended
Intangible Assets (Details) $ in Thousands	Jun. 30, 2018 USD ($)
Intangible assets, Residual value	$ 0
Finite lived intangible assets amortization method	straight line
Weighted average useful life for favorable lease terms chartered out	10 years 3 months 17 days

Borrowings (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Term Loan B facility	$ 430,004	$ 441,471
Credit facilities	78,205	69,161
Total borrowings	508,209	510,632
Less: Long-term unamortized discount	(8,715)	(10,824)
Less: Current portion of long-term debt, net	(45,012)	(26,586)
Less: Deferred finance costs, net	(5,032)	(6,345)
Long-term debt, net	$ 449,450	$ 466,877

Borrowings - Principal Payments Due (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Long Term Debt By Maturity [Abstract]
2019	$ 51,550
2020	30,815
2021	409,951
2022	11,129
2023 and thereafter	4,764
Total borrowings	$ 508,209	$ 510,632

Borrowings (Details) $ in Thousands		5 Months Ended		6 Months Ended				7 Months Ended	10 Months Ended
Borrowings (Details) $ in Thousands	Jan. 12, 2017 USD ($)	Jun. 01, 2018 USD ($)	May 18, 2018 USD ($)	Jul. 02, 2018 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 28, 2017 USD ($)	Jul. 18, 2017 USD ($)	Nov. 03, 2017 USD ($)	Mar. 26, 2018 USD ($)	Dec. 31, 2017 USD ($)	Aug. 10, 2017 USD ($)	Jun. 26, 2017 USD ($)	Mar. 14, 2017 USD ($)	Jun. 23, 2016 USD ($)	Sep. 30, 2015 USD ($)	Apr. 16, 2015 USD ($)	Nov. 01, 2013 USD ($)	Jun. 30, 2013 USD ($)
Debt Instrument [Line Items]
Amount outstanding					$ 430,004						$ 441,471
Unamortized discount					8,715						10,824
Outstanding balance					78,205						$ 69,161
Long- term debt					$ 494,462	$ 475,017
Term Loan B Facility
Debt Instrument [Line Items]
Issuance date					Jun. 30, 2013
Debt amount																			$ 250,000
Write-off of deferred financing fees					$ 1,275
Term Loan B Facility \| Subsequent Event
Debt Instrument [Line Items]
Repayment of debt				$ 20,200
Term Loan B Facility Addition
Debt Instrument [Line Items]
Debt amount												$ 53,000						$ 189,500
Description of terms of credit facility					The add-on to the Term Loan B Facility bore the same terms as the Term Loan B Facility. Navios Partners used the net proceeds to partially finance the acquisition of three vessels.
New Term Loan B Facility
Debt Instrument [Line Items]
Issuance date					Mar. 14, 2017
Debt amount														$ 405,000
Interest rate description					LIBOR plus 500 bps
Interest rate percentage					5.00%
Amount outstanding					$ 421,289
Unamortized discount					$ 8,715
Repayment frequency					quarterly
Repayment installments					8
Repayment amount					$ 5,733
Balloon payment on the last repayment date					384,138
Write-off of deferred financing fees					$ 1,880
Repayment interest rate percentage					1.25%
Maturity Date					Sep. 14, 2020
June 2016 Credit Facility
Debt Instrument [Line Items]
Credit Facility, Initiation Date					Jun. 23, 2016
Credit facility, maximum borrowing capacity															$ 30,000
Interest rate percentage					4.00%
Outstanding balance					$ 0
Interest rate description					LIBOR plus 400 bps
Final maturity date					Jan. 30, 2017
April 2015 Credit Facility
Debt Instrument [Line Items]
Credit Facility, Initiation Date					Apr. 16, 2015
Credit facility, maximum borrowing capacity																	$ 164,000
Number of loan tranches					2
Outstanding balance					$ 0
Cancellation of undrawn amount																$ 83,000
Write-off of deferred financing fees	$ 516
Final maturity date					Apr. 20, 2022
April 2015 Credit Facility \| One more super-post-panamax
Debt Instrument [Line Items]
Capacity per each container in TEU					13,100
June 2017 Credit Facility
Debt Instrument [Line Items]
Credit Facility, Initiation Date					Jun. 26, 2017
Credit facility, maximum borrowing capacity													$ 32,000
Number of loan tranches					2
Interest rate percentage					3.00%
Outstanding balance					$ 29,205
Interest rate description					LIBOR plus 300 bps
June 2017 Credit Facility \| Tranche A
Debt Instrument [Line Items]
Number of loan tranches					12
Repayment frequency					quarterly
Repayment amount					$ 386
Balloon payment on the last repayment date					$ 10,824
Amount drawn down							$ 17,000
Maturity Date					Jun. 30, 2021
June 2017 Credit Facility \| Tranche B
Debt Instrument [Line Items]
Number of loan tranches					13
Repayment amount					$ 417
Balloon payment on the last repayment date					$ 8,328
Amount drawn down								$ 15,000
Maturity Date					Sep. 30, 2021
July 2012 Credit Facility
Debt Instrument [Line Items]
Balloon payment on the last repayment date					$ 16,500
Refinance of July 2012 Credit Facility
Debt Instrument [Line Items]
Credit Facility, Initiation Date					Jun. 28, 2017
Credit facility, maximum borrowing capacity							$ 39,000
Number of loan tranches					4
Interest rate percentage					3.10%
Outstanding balance					$ 34,700
Interest rate description					LIBOR plus 310 bps
Write-off of deferred financing fees					$ 209
Repayment of debt				$ 20,200
Refinance of July 2012 Credit Facility \| Tranche A
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity					$ 32,000
Final maturity date					Sep. 30, 2020
Refinance of July 2012 Credit Facility \| Tranche B
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity					$ 7,000
Final maturity date					Jun. 30, 2020
Refinance of July 2012 Credit Facility \| Tranche C
Debt Instrument [Line Items]
Repayment frequency					quarterly
Repayment installments					10
Balloon payment on the last repayment date					$ 16,500
Amount drawn down									$ 32,000
Refinance of July 2012 Credit Facility \| Tranche D
Debt Instrument [Line Items]
Amount drawn down						$ 7,000
March 2018 Credit Facility
Debt Instrument [Line Items]
Credit Facility, Initiation Date					Mar. 26, 2018
Credit facility, maximum borrowing capacity										$ 14,300
Number of loan tranches					2
Interest rate percentage					3.00%
Number of installments					20
Outstanding balance					$ 14,300
Repayment frequency					consecutive
Repayment amount					$ 596
Balloon payment on the last repayment date					$ 2,380
Interest rate description					LIBOR plus 300 bps
Maturity Date					Jun. 30, 2023
March 2018 Credit Facility \| Tranche A
Debt Instrument [Line Items]
Amount drawn down			$ 7,150
March 2018 Credit Facility \| Tranche B
Debt Instrument [Line Items]
Amount drawn down		$ 7,150
Minimum \| Refinance of July 2012 Credit Facility \| Tranche C
Debt Instrument [Line Items]
Repayment amount					$ 1,143
Minimum \| Refinance of July 2012 Credit Facility \| Tranche D
Debt Instrument [Line Items]
Repayment frequency					consecutive
Repayment installments					7
Repayment amount					$ 250
Balloon payment on the last repayment date					3,625
Maximum \| Refinance of July 2012 Credit Facility \| Tranche C
Debt Instrument [Line Items]
Repayment amount					$ 1,500
Maximum \| Refinance of July 2012 Credit Facility \| Tranche D
Debt Instrument [Line Items]
Repayment frequency					quarterly
Repayment installments					1
Repayment amount					$ 325

Borrowings - Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Debt Instrument [Line Items]
Restrictive covenants	As of June 30, 2018, Navios Partners was in compliance with the financial covenants and/or the prepayment and/or the cure provisions as applicable in each of its credit facilities.
July 2012 Credit Facility and June 2017 Credit Facility
Debt Instrument [Line Items]
Restrictive covenants	The credit facilities contain a number of restrictive covenants that prohibit or limit Navios Partners from, among other things: incurring or guaranteeing indebtedness; entering into affiliate transactions; charging, pledging or encumbering the vessels; changing the flag, class, management or ownership of Navios Partners’ vessels; changing the commercial and technical management of Navios Partners’ vessels; selling or changing the beneficial ownership or control of Navios Partners’ vessels; not maintaining Navios Holdings’ (or its affiliates) ownership in Navios Partners of at least 15.0%; and subordinating the obligations under the credit facilities to any general and administrative costs relating to the vessels, including the fixed daily fee payable under the management agreement.
Description of violation or event of default	The credit facilities require compliance with a number of financial covenants, including: (i) maintain a required security amount ranging over 120% to 140%; (ii) minimum free consolidated liquidity in an amount equal to at least $650 per owned vessel; (iii) maintain a ratio of EBITDA to interest expense of at least 2.00:1.00; (iv) maintain a ratio of total liabilities or total debt to total assets (as defined in our credit facilities) ranging of less than 0.75; and (v) maintain a minimum net worth to $135,000.
Minimum net worth required for compliance	$ 135,000
July 2012 Credit Facility and June 2017 Credit Facility \| Minimum
Debt Instrument [Line Items]
Ratio of EBITDA to interest expense	200.00%
Security cover ratio	120.00%
July 2012 Credit Facility and June 2017 Credit Facility \| Minimum \| Navios Holdings
Debt Instrument [Line Items]
Ownership percentage of Navios Holdings	15.00%
July 2012 Credit Facility and June 2017 Credit Facility \| Maximum
Debt Instrument [Line Items]
Security cover ratio	140.00%
Term Loan B Facility including addition
Debt Instrument [Line Items]
Restrictive covenants	The credit facilities contain a number of restrictive covenants that prohibit or limit Navios Partners from, among other things: incurring or guaranteeing indebtedness; entering into affiliate transactions; charging, pledging or encumbering the vessels; changing the flag, class, management or ownership of Navios Partners’ vessels; changing the commercial and technical management of Navios Partners’ vessels; selling or changing the beneficial ownership or control of Navios Partners’ vessels; not maintaining Navios Holdings’ (or its affiliates) ownership in Navios Partners of at least 15.0%; and subordinating the obligations under the credit facilities to any general and administrative costs relating to the vessels, including the fixed daily fee payable under the management agreement.
Description of violation or event of default	The Term Loan B Agreement also provides for customary events of default, prepayment and cure provisions.
New Term Loan B Facility \| Minimum
Debt Instrument [Line Items]
Loan to value ratio	80.00%
New Term Loan B Facility \| Maximum
Debt Instrument [Line Items]
Loan to value ratio	100.00%
Prior to any distributions \| July 2012 Credit Facility and June 2017 Credit Facility
Debt Instrument [Line Items]
Minimum free consolidated liquidity	$ 650

Fair Value of Financial Instruments (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
FAIR VALUE OF FINANCIAL INSTRUMENTS [ABSTRACT]
Cash and cash equivalents - Book Value	$ 40,577	$ 24,047	$ 79,749
Cash and cash equivalents - Fair Value	40,577	24,047
Restricted cash - Book Value	402	5,886
Restricted cash - Fair Value	402	5,886
Loans receivable from affiliates - Book Value	11,861	11,706
Loans receivable from affiliates - Fair Value	11,861	11,706
Amounts due from related parties, long-term - Book Value	44,009	34,891
Amounts due from related parties, long-term - Fair Value	44,009	34,891
Amounts due from related parties, short-term - Book Value	11,735	10,545
Amounts due from related parties, short-term - Fair Value	11,735	10,545
Term Loan B facility, net - Book Value	(416,920)	(425,144)
Term Loan B facility, net - Fair Value	(430,542)	(441,471)
Other long-term debt, net - Book Value	(77,542)	(68,319)
Other long-term debt, net - Fair Value	(78,205)	(69,161)
Notes receivable, net of current portion - Book Value	13,760	15,897
Notes receivable, net of current portion - Fair Value	13,760	15,897
Receivable from affiliates - Book Value	4,386	4,253
Receivable from affiliates - Fair Value	$ 4,386	$ 4,253

Issuance of Units (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended	2 Months Ended	3 Months Ended		6 Months Ended		8 Months Ended
	Jan. 11, 2018	Jan. 31, 2017	Feb. 21, 2018	Mar. 20, 2017	Mar. 17, 2017	Jun. 30, 2018	Jun. 30, 2017	Sep. 01, 2017	Dec. 31, 2017
Class Of Stock [Line Items]
Proceeds from issuance of Common Limited partners units						$ 33,532	$ 98,175
Payments to acquire notes receivable from affiliiates						0	4,050
Net proceeds from issuance of general partner units						714	2,626
Equity compensation expense						1,235	933
Issuance of common units for transfer of Navios Europe I loans						0	28,862
Compensation cost of non-vested restricted common units not yet recognized						2,986
Net proceeds from issuance of general partner untis						$ 33,374	$ 98,175
Common units outstanding						167,589,764			147,797,720
Issuance of restricted common units (see Note 9), value						$ 1,299
Common Unitholders
Class Of Stock [Line Items]
Issuance of restricted common units (see Note 9), units						1,370,044
Partners Capital account units sold in public offering			18,422,000	47,795,000
Unit price			$ 1.9	$ 2.1
Proceeds from issuance of Common Limited partners units			$ 35,002	$ 100,369
Proceeds from issuance of common units, net of offering costs			33,374	95,986
Offering costs			$ 1,628	$ 4,383
Issuance of common units for transfer of Navios Europe I Loans (see Notes 9 & 13), units							13,076,923
Issuance of restricted units, Unit-based Compensation							2,040,000
Net proceeds from issuance of general partner untis						18,422,000	48,995,442
Net proceeds from issuance of general partner untis						$ 33,374	$ 98,175
Issuance of restricted common units (see Note 9), value						$ 1,235
Common Unitholders \| Acquisition Agreement
Class Of Stock [Line Items]
Issuance of restricted common units (see Note 9), units								361,444
Issuance of restricted common units (see Note 9), value								$ 600
General Partner
Class Of Stock [Line Items]
Issuance of restricted common units (see Note 9), units						27,960
Partners Capital account units sold in public offering			375,959	975,408
Net proceeds from issuance of general partner units			$ 714	$ 2,049	$ 468
Partners Capital account units sold in private placement					266,876
General Partner's capital account units sold in public offering						375,959	1,308,415
Issuance of restricted common units (see Note 9), value						$ 64
General Partner \| Acquisition Agreement
Class Of Stock [Line Items]
Issuance of restricted common units (see Note 9), units								7,376
Issuance of restricted common units (see Note 9), value								$ 12
Restricted Common Units
Class Of Stock [Line Items]
Vesting period						4 years
Restricted common units vested in period						686,665
Common units outstanding						361,444
Navios Holdings
Class Of Stock [Line Items]
Payments to acquire notes receivable from affiliiates					$ 4,050
Value of consideration given					$ 33,473
Navios Holdings \| Common Unitholders
Class Of Stock [Line Items]
Issuance of common units for transfer of Navios Europe I Loans (see Notes 9 & 13), units					13,076,923
Issuance of common units for transfer of Navios Europe I loans					$ 28,862
Directors and/ or officers \| Authorized January 2017
Class Of Stock [Line Items]
Equity compensation expense						$ 424	$ 933
Directors and/ or officers \| Authorized December 2017
Class Of Stock [Line Items]
Net proceeds from issuance of general partner units	$ 64
Partners Capital account units sold in private placement	27,960
Equity compensation expense						$ 810
Directors and/ or officers \| General Partner \| Authorized January 2017
Class Of Stock [Line Items]
Net proceeds from issuance of general partner units		$ 63
Partners Capital account units sold in private placement		41,633
Directors and/ or officers \| Restricted Common Units \| Authorized January 2017
Class Of Stock [Line Items]
Issuance of restricted units, Unit-based Compensation		2,040,000
Directors and/ or officers \| Restricted Common Units \| Authorized December 2017
Class Of Stock [Line Items]
Issuance of restricted units, Unit-based Compensation	1,370,044
Navios Holdings
Class Of Stock [Line Items]
Ownership percentage of Navios Holdings						20.20%
Navios GP L.L.C. general partner interest in Navios Partners						2.00%
Common units outstanding						31,053,233
Navios Term Loans I \| Navios Holdings \| Navios Revolving Loans I
Class Of Stock [Line Items]
Payments to acquire notes receivable from affiliiates					4,050
Value of consideration given					$ 33,473
Navios Term Loans I \| Navios Holdings \| Common Unitholders \| Navios Revolving Loans I
Class Of Stock [Line Items]
Issuance of common units for transfer of Navios Europe I Loans (see Notes 9 & 13), units					13,076,923
Navios Term Loans I \| Navios Holdings \| Navios Revolving Loans I
Class Of Stock [Line Items]
Preferred distribution percentage					12.70%

Commitments and Contingencies (Table) (Details) $ in Thousands	Jun. 30, 2018 USD ($)
Contractual Obligation Fiscal Year Maturity [Abstract]
2019	$ 22,970
2020	1,630
2021	2,172
2022	2,172
2023	2,104
2024 and thereafter	12,739
Total	$ 43,787

Commitments and Contingencies (Details) $ in Thousands	4 Months Ended	6 Months Ended
Commitments and Contingencies (Details) $ in Thousands	Apr. 27, 2018 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Property Plant And Equipment [Line Items]
Other long-term assets		$ 2,793		$ 2,779
Deposits for vessels acquisitions		14	$ 0
Contractual obligation		22,970
Refinance of July 2012 Credit Facility
Property Plant And Equipment [Line Items]
Contractual obligation		20,200
One Drybulk Carrier Vessel
Property Plant And Equipment [Line Items]
Other long-term assets				$ 2,770
Deposits for vessels acquisitions		$ 2,770
YM Unity
Property Plant And Equipment [Line Items]
Vessel Year Built		2006
Containership Capacity		8,204
YM Utmost
Property Plant And Equipment [Line Items]
Vessel Year Built		2006
Containership Capacity		8,204
YM Unity and YM Utmost
Property Plant And Equipment [Line Items]
Sale Price Contractual Agreement	$ 67,000

Transactions with Related Parties and Affiliates (Details) - USD ($)	2 Months Ended	3 Months Ended		6 Months Ended		11 Months Ended
	Feb. 29, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Nov. 15, 2012	Dec. 31, 2017
Related Party Transaction [Line Items]
General and administrative expenses		$ 5,513,000	$ 4,865,000	$ 9,044,000	$ 8,077,000
Due From Related Parties, Current		11,735,000		11,735,000			$ 10,545,000
Due From Related Parties, Noncurrent		44,009,000		44,009,000			34,891,000
Management fees		17,381,000	15,462,000	34,072,000	29,805,000
Revenue from related parties		0	33,000	(9,000)	643,000
Amounts due from related parties, long-term - Fair Value		44,009,000		$ 44,009,000			34,891,000
Navios Holdings
Related Party Transaction [Line Items]
Ownership percentage of Navios Holdings				20.20%
Supplemental credit default insurance maximum cash payment						$ 20,000,000
Amounts due from related parties, long-term - Fair Value		19,416,000		$ 19,416,000
Prior management agreement \| Ultra-Handymax Vessels
Related Party Transaction [Line Items]
Daily management fee	$ 4,100
Prior management agreement \| Panamax Vessels
Related Party Transaction [Line Items]
Daily management fee	4,200
Prior management agreement \| Capesize Vessels
Related Party Transaction [Line Items]
Daily management fee	5,250
Prior management agreement \| Containerships of TEU 6,800
Related Party Transaction [Line Items]
Daily management fee	6,700
Prior management agreement \| Containerships of more than TEU 8,000
Related Party Transaction [Line Items]
Daily management fee	7,400
Prior management agreement \| Containerships of more than TEU 13,000
Related Party Transaction [Line Items]
Daily management fee	$ 8,750
Management Agreement \| Ultra-Handymax Vessels
Related Party Transaction [Line Items]
Daily management fee				4,230
Management Agreement \| Panamax Vessels
Related Party Transaction [Line Items]
Daily management fee				4,330
Management Agreement \| Capesize Vessels
Related Party Transaction [Line Items]
Daily management fee				5,250
Management Agreement \| Containerships of TEU 6,800
Related Party Transaction [Line Items]
Daily management fee				6,700
Management Agreement \| Containerships of more than TEU 8,000
Related Party Transaction [Line Items]
Daily management fee				7,400
Management Agreement \| Containerships of more than TEU 13,000
Related Party Transaction [Line Items]
Daily management fee				$ 8,750
Management Agreement \| Late Reimbursement
Related Party Transaction [Line Items]
Interest rate description				LIBOR
Interest rate percentage				1.00%
Debt later required payment				Jan. 05, 2018
Navios Holdings
Related Party Transaction [Line Items]
General and administrative expenses		2,330,000	$ 1,999,000	$ 4,580,000	$ 3,944,000
Due to Related Parties, Noncurrent
Navios Holdings \| Ecxluding Navios Europe I and Navios Europe II
Related Party Transaction [Line Items]
Due from Related Parties		52,273,000		52,273,000			$ 43,146,000
Due From Related Parties, Current		8,264,000		8,264,000
Due From Related Parties, Noncurrent		$ 44,009,000		$ 44,009,000
Navios Fulvia
Related Party Transaction [Line Items]
Vessel Year Built				2010
Vessel type				Capesize
Navios Fulvia \| Extended Management Agreement
Related Party Transaction [Line Items]
Charter hire daily rate				$ 11,500
Lease term				3 months
Date of agreement				Nov. 30, 2016

Transactions with Related Parties and Affiliates - Revolving Loans to Navios Europe and Others (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 17, 2017	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2015	Feb. 18, 2015	Dec. 18, 2013	Oct. 09, 2013
Long- term debt			$ 494,462		$ 475,017
Investment in affiliates			69,237	$ 52,122	1,192
Loans receivable from affiliates			$ 11,861	11,706
Navios Europe I
Ownership percentage			5.00%						5.00%
Long- term debt			$ 10,000
Navios Europe II
Ownership percentage			5.00%				5.00%
Navios Revolving Loans I \| Navios Europe I
Loans receivable from affiliates			$ 1,205	1,205
Accrued interest income			599	489
Navios Revolving Loans II \| Navios Europe II
Loans receivable from affiliates			9,772	9,772
Accrued interest income			2,872	1,801
Navios Term Loans I \| Navios Europe I
Investment in affiliates			500	500
Accrued interest income			388	334
Navios Term Loans I \| Navios Revolving Loans I \| Navios Holdings
Preferred distribution percentage		12.70%
Navios Term Loans II \| Navios Europe II
Investment in affiliates			700	700
Accrued interest income			$ 496	395
Navios Holdings \| Navios Europe I
Ownership percentage									47.50%
Navios Holdings \| Navios Europe II
Ownership percentage							47.50%
Navios Holdings, Navios Acquisition and Navios Partners \| Navios Revolving Loans I \| Navios Europe I
Revolving loan facility maximum borrowing capacity								$ 24,100
Preferred distribution percentage			12.70%
Navios Holdings, Navios Acquisition and Navios Partners \| Navios Revolving Loans II \| Navios Europe II
Revolving loan facility maximum borrowing capacity							$ 43,500
Preferred distribution percentage			18.00%
Available amount of loan facility			$ 15,003
Increase in available amount of loan facility	$ 14,000
Navios Holdings, Navios Acquisition and Navios Partners \| Navios Revolving Loans II \| Navios Europe II \| Minimum
Available amount of loan facility			0
Navios Holdings, Navios Acquisition and Navios Partners \| Navios Revolving Loans II \| Navios Europe II \| Maximum
Available amount of loan facility			15,003
Navios Holdings, Navios Acquisition and Navios Partners \| Navios Term Loans I \| Navios Europe I
Long- term debt			10,000					$ 10,000
Navios Holdings, Navios Acquisition and Navios Partners \| Navios Term Loans II \| Navios Europe II
Long- term debt						$ 14,000
Navios Acquisitions \| Navios Europe I
Ownership percentage									47.50%
Navios Acquisitions \| Navios Europe II
Ownership percentage							47.50%
Navios Europe I
Investment in affiliates			500	500
Navios Europe I \| Navios Revolving Loans I
Available amount of loan facility			0		$ 4,527
Navios Europe II
Investment in affiliates			$ 700	$ 700

Notes Receivable (Details)		3 Months Ended		6 Months Ended			12 Months Ended
Notes Receivable (Details)	Jan. 12, 2017 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) shares	Jun. 30, 2017 USD ($)	Jul. 15, 2016 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jul. 18, 2016 USD ($)
Deferred revenue, current		$ 15,938,000		$ 15,938,000			$ 15,143,000
Deferred revenue, noncurrent		10,467,000		10,467,000			16,468,000
Net proceeds on sale								$ 20,842,000
Loss on sale of securities								$ (19,435,000)
Non-cash interest income		985,000	$ 803,000	1,947,000	$ 1,326,000
Net cash proceeds from sale of vessels				0	$ 109,740,000
Notes receivable, current		4,781,000		4,781,000			4,802,000
Notes receivable, net of current portion		$ 13,760,000		$ 13,760,000			15,897,000
Sale of MSC Cristina
Debt Instrument Interest Rate		6.00%		6.00%
Non-cash interest income		$ 186,000		$ 388,000
Gross sale price	$ 126,000,000
Net cash proceeds from sale of vessels	107,250,000
Notes receivable, net	$ 18,750,000
Notes receivable, current		4,687,000		4,687,000
Notes receivable, net of current portion		7,032,000		$ 7,032,000
Repayment installments				16
Repayment frequency				quarterly
Accrued interest income		94,000		$ 94,000
Hyundai Merchant Marine Co., Ltd.
Deferred revenue, current		12,102,000		12,102,000
Deferred revenue, noncurrent		10,467,000		10,467,000
Trading Securities									$ 40,277,000
Unsecured Notes									$ 5,931,000
Deferred revenue amortization		3,017,000		6,001,000
Notes receivable				6,728,000			$ 6,522,000
Hyundai Merchant Marine Co., Ltd. \| Interest Income and Discount Unwinding
Non-cash interest income		$ 104,000		207,000
Hyundai Merchant Marine Co., Ltd. \| Containerships \| Restructuring Agreement
Charter Revenue						$ 38,461,000
Hyundai Merchant Marine Co., Ltd. \| July 18, 2016 until December 31, 2019 \| Restructuring Agreement
Charter Revenue				$ 24,400
Effective Date of Arrangements				Jul. 18, 2016
Termination date				Dec. 31, 2019
Hyundai Merchant Marine Co., Ltd. \| From January 1, 2020 and thereafter \| Restructuring Agreement
Charter Revenue				$ 30,500
Effective Date of Arrangements				Jan. 01, 2020
Hyundai Merchant Marine Co., Ltd. \| Senior Notes \| Containerships \| Restructuring Agreement
Trading securities equity number of shares \| shares				3,657
Proceeds From Debt				$ 7,692,000
Debt Instrument Interest Rate		3.00%		3.00%
Maturity Date				Jul. 31, 2024

Cash Distributions and Earnings per Unit - Percentage Interest in Distributions (Table) (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	100.00%
Credit facilities	$ 78,205	$ 69,161
Total Quarterly Distribution Target Amount \| Minimum Quarterly Distribution
Distribution Made To Limited Partner [Line Items]
Distribution Per Unit	$ 0.35
Total Quarterly Distribution Target Amount \| First Target Distribution
Distribution Made To Limited Partner [Line Items]
Distribution Per Unit	0.4025
Total Quarterly Distribution Target Amount \| Second Target Distribution \| Minimum
Distribution Made To Limited Partner [Line Items]
Distribution Per Unit	0.4025
Total Quarterly Distribution Target Amount \| Second Target Distribution \| Maximum
Distribution Made To Limited Partner [Line Items]
Distribution Per Unit	0.4375
Total Quarterly Distribution Target Amount \| Third Target Distribution \| Minimum
Distribution Made To Limited Partner [Line Items]
Distribution Per Unit	0.4375
Total Quarterly Distribution Target Amount \| Third Target Distribution \| Maximum
Distribution Made To Limited Partner [Line Items]
Distribution Per Unit	0.525
Total Quarterly Distribution Target Amount \| Thereafter
Distribution Made To Limited Partner [Line Items]
Distribution Per Unit	$ 0.525
Common Unitholders \| Minimum Quarterly Distribution
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	98.00%
Common Unitholders \| First Target Distribution
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	98.00%
Common Unitholders \| Second Target Distribution
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	85.00%
Common Unitholders \| Third Target Distribution
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	75.00%
Common Unitholders \| Thereafter
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	50.00%
General Partner \| Minimum Quarterly Distribution
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	2.00%
General Partner \| First Target Distribution
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	2.00%
General Partner \| Second Target Distribution
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	15.00%
General Partner \| Third Target Distribution
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	25.00%
General Partner \| Thereafter
Distribution Made To Limited Partner [Line Items]
Percentage allocations of the additional available cash	50.00%

Other Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		11 Months Ended
Other Income (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Nov. 15, 2012	Dec. 31, 2017
Other Income	$ 146	$ 2,950	$ 720	$ 6,070
Amounts due from related parties, long-term - Fair Value	44,009		44,009			$ 34,891
Navios Holdings
Income from credit default insurance		2,276		4,527
Other Income		$ 2,396		$ 4,765
Navios Holdings
Supplemental credit default insurance maximum cash payment					$ 20,000
Amounts due from related parties, long-term - Fair Value	19,416		19,416
Accrued interest and discount unwinding	$ 97		$ 193

Other Expense (Details) - USD ($) $ in Thousands		6 Months Ended
Other Expense (Details) - USD ($) $ in Thousands	Jan. 12, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Property Plant And Equipment [Line Items]
Vessel held for sale		$ 67,000		$ 0
Proceeds from sale of vessel		0	$ 109,740
Gain / (Loss) on sale of vessel		0	(1,260)
Allowance for doubtful accounts		0	1,495
Discount of the Navios Holding Guarantee		$ 777
Hanjin Shipping Co. Ltd
Property Plant And Equipment [Line Items]
Allowance for doubtful accounts			1,495
MSC Cristina
Property Plant And Equipment [Line Items]
Vessel held for sale	$ 125,000
Proceeds from sale of vessel	$ 123,740
Gain / (Loss) on sale of vessel			$ 1,260