Navios Maritime Acquisition (NNA) 6-K 23 Aug 18 2018 Q2 Current report (foreign) Financial data

Document and Entity Information

Document and Entity Information	6 Months Ended
	Jun. 30, 2018shares
Document Entity Information [Abstract]
Entity Registrant Name	Navios Maritime Acquisition Corporation
Trading Symbol	NNA
Entity Central Index Key	1,437,260
Document Type	6-K
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Document Fiscal Year Focus	2,018
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
Entity Common Stock Shares Outstanding	145,244,205

Unaudited Consolidated Balance

Unaudited Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 49,466	$ 81,151
Restricted cash	2,598	5,307
Accounts receivable, net	12,853	12,810
Due from related parties, short term	14,714	13,931
Prepaid expenses and other current assets	6,972	6,534
Total current assets	86,603	119,733
Vessels, net	1,177,671	1,250,043
Goodwill	1,579	1,579
Other long-term assets	3,450	900
Deferred dry dock and special survey costs, net	28,577	20,871
Investment in affiliates	116,136	125,062
Due from related parties, long-term	54,218	54,593
Total non-current assets	1,381,631	1,453,048
Total assets	1,468,234	1,572,781
Current liabilities
Accounts payable	4,456	3,862
Accrued expenses	13,375	12,211
Due to related parties, short-term	10,064	17,107
Deferred revenue	5,833	5,028
Current portion of long-term debt, net of deferred finance costs	48,803	36,410
Total current liabilities	82,531	74,618
Long-term debt, net of current portion, premium and net of deferred finance costs	974,588	1,028,959
Deferred gain on sale of assets	6,356	6,729
Total non-current liabilities	980,944	1,035,688
Total liabilities	1,063,475	1,110,306
Commitments and contingencies
Stockholders' equity
Preferred stock, $0.0001 par value; 10,000,000 shares authorized; 1,000 series C shares issued and outstanding as of June 30, 2018 and December 31, 2017	0	0
Common stock, $0.0001 par value; 250,000,000 shares authorized; 145,244,205 and 152,107,905 issued and outstanding as of June 30, 2018 and December 31, 2017, respectively	14	15
Additional paid-in capital	506,890	518,071
Accumulated deficit	(102,145)	(55,611)
Total stockholders' equity	404,759	462,475
Total liabilities and stockholders' equity	$ 1,468,234	$ 1,572,781

Unaudited Consolidated Balance3

Unaudited Consolidated Balance Sheets (Parentheticals) - $ / shares	Jun. 30, 2018	Dec. 31, 2017
Preferred stock - par value	$ 0.0001	$ 0.0001
Preferred stock shares authorized	10,000,000	10,000,000
Common stock - par value	$ 0.0001	$ 0.0001
Common stock shares authorized	250,000,000	250,000,000
Common stock shares issued	145,244,205	152,107,905
Common stock shares outstanding	145,244,205	152,107,905
Series C Convertible Preferred Stock
Preferred stock shares issued	1,000	1,000
Preferred stock shares outstanding	1,000	1,000

Unaudited Consolidated Statemen

Unaudited Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME [Abstract]
Revenue	$ 41,479	$ 58,458	$ 87,629	$ 122,940
Time charter and voyage expenses	(6,363)	(5,585)	(12,189)	(8,763)
Direct vessel expenses	(1,692)	(934)	(3,240)	(1,827)
Management fees (entirely through related party transactions)	(22,913)	(23,678)	(46,312)	(47,096)
General and administrative expenses	(4,892)	(3,693)	(8,055)	(6,456)
Depreciation and amortization	(13,776)	(14,220)	(27,986)	(28,440)
Gain on sale of vessel	0	0	25	0
Interest income	1,978	2,546	3,814	4,740
Interest expense and finance cost	(19,305)	(19,785)	(38,609)	(38,632)
Equity/ (loss) in net earnings of affiliated companies	4,229	(57,728)	(59)	(54,960)
Other (expense)/ income, net	(813)	202	(1,552)	(308)
Net loss	(22,068)	(64,417)	(46,534)	(58,802)
Dividend declared on restricted shares	(35)	0	(71)	0
Undistributed loss attributable to Series C participating preferred shares	1,117	3,127	2,321	2,855
Net loss attributable to common shareholders, basic	(20,986)	(61,290)	(44,284)	(55,947)
Dividend declared on restricted shares	0	0	0	0
Undistributed loss attributable to Series C participating preferred shares	0	0	0	0
Net loss attributable to common shareholders, diluted	$ (20,986)	$ (61,290)	$ (44,284)	$ (55,947)
Net loss per share, basic and diluted	$ (0.15)	$ (0.41)	$ (0.30)	$ (0.37)
Weighted average number of shares, basic	144,228,909	150,436,836	146,378,370	150,468,625
Weighted average number of shares, diluted	144,228,909	150,436,836	146,378,370	150,468,625

Unaudited Consolidated Stateme5

Unaudited Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Operating Activities
Net loss	$ (46,534)	$ (58,802)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	27,986	28,440
Amortization and write-off of deferred finance fees and bond premium	1,981	2,579
Amortization of dry dock and special survey costs	3,240	1,827
Stock based compensation	541	0
Gain on sale of vessel	(25)	0
Equity/ (loss) in net earnings of affiliates, net of dividends received	59	58,413
Changes in operating assets and liabilities:
(Increase)/ decrease in prepaid expenses and other current assets	(438)	20
Decrease in accounts receivable	41	9,484
(Increase)/ decrease in due from related parties, short-term	(783)	6,047
Increase in other long term assets	(2,550)	0
Decrease/ (increase) in due from related parties, long-term	1,851	(15,979)
Increase/ (decrease) in accounts payable	426	(433)
Increase in accrued expenses	588	554
Payments for dry dock and special survey costs	(11,411)	(4,928)
(Decrease)/ increase in due to related parties, short-term	(6,887)	5,937
Increase/ (decrease) in deferred revenue	921	(53)
Net cash (used in)/ provided by operating activities	(30,994)	33,106
Investing Activities
Loans receivable from affiliates	0	(9,061)
Dividends received from affiliates	6,902	7,197
Investment in affiliates	0	(84)
Net cash proceeds from sale of vessel	44,500	0
Net cash provided by/ (used in) investing activities	51,402	(1,948)
Financing Activities
Loan proceeds, net of deferred finance costs	70,392	49,764
Loan repayments	(113,471)	(63,226)
Dividend paid	(6,167)	(15,812)
Redemption of convertible shares and puttable common stock	0	(1,750)
Acquisition of treasury stock	(5,556)	0
Net cash used in financing activities	(54,802)	(31,024)
Net (decrease)/ increase in cash, cash equivalents and restricted cash	(34,394)	134
Cash, cash equivalents and restricted cash, beginning of period	86,458	56,658
Cash, cash equivalents and restricted cash, end of period	52,064	56,792
Supplemental disclosures of cash flow information
Cash interest paid, net of capitalized interest	36,126	35,851
Non-cash investing activities
Accrued interest on loan to affiliate	1,476	3,512
Costs payable relating to sale of vessel	(200)	0
Non-cash financing activities
Stock based compensation	541	0
Accrued deferred finance costs	$ 879	$ 0

Unaudited Consolidated Stateme6

Unaudited Consolidated Statements of Changes In Equity - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-in Capital	(Accumulated Deficit)/ Retained Earnings
Balance value at Dec. 31, 2016	$ 572,931	$ 0	$ 15	$ 541,720	$ 31,196
Balance, shares at Dec. 31, 2016		1,000	150,582,990
Redemption of puttable common stock			(175,000)
Dividend paid/ declared (see Note 7)	(15,812)			(7,904)	(7,908)
Net loss	(58,802)				(58,802)
Balance value at Jun. 30, 2017	498,317	$ 0	$ 15	533,816	(35,514)
Balance, shares at Jun. 30, 2017		1,000	150,407,990
Balance value at Dec. 31, 2016	572,931	$ 0	$ 15	541,720	31,196
Balance, shares at Dec. 31, 2016		1,000	150,582,990
Balance value at Dec. 31, 2017	462,475	$ 0	$ 15	518,071	(55,611)
Balance, shares at Dec. 31, 2017		1,000	152,107,905
Stock based compensation, value (see Note 13)	541			541
Acquisition of treasury stock, value (see Note 13)	(5,556)		$ (1)	(5,555)
Acquisition of treasury stock, shares (see Note 13)			(6,863,700)
Dividend paid/ declared (see Note 7)	(6,167)			(6,167)
Net loss	(46,534)				(46,534)
Balance value at Jun. 30, 2018	$ 404,759	$ 0	$ 14	$ 506,890	$ (102,145)
Balance, shares at Jun. 30, 2018		1,000	145,244,205

Description of Organization and

Description of Organization and Business Operations	6 Months Ended
	Jun. 30, 2018
Description of Organization and Business Operations [Abstract]
DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS	NOTE 1: DESCRIPTION OF ORGANIZATION AND BUSINESS OPERATIONS Navios Maritime Acquisition Corporation (“Navios Acquisition” or the “Company”) (NYSE: NNA) owns a large fleet of modern crude oil, refined petroleum product and chemical tankers providing worldwide marine transportation services. The Company’s strategy is to charter its vessels to international oil companies, refiners and large vessel operators under long-, medium- and short-term charters. The Company is committed to providing quality transportation services and developing and maintaining long-term relationships with its customers. The operations of Navios Acquisition are managed by a subsidiary of Navios Maritime Holdings Inc. (“Navios Holdings”). Navios Acquisition was incorporated in the Republic of Marshall Islands on March 14, 2008. On July 1, 2008, Navios Acquisition completed its initial public offering (“IPO”). On May 28, 2010, Navios Acquisition consummated the vessel acquisitions which constituted its initial business combination. Following such transaction, Navios Acquisition commenced its operations as an operating company. In November 2014, Navios Maritime Midstream Partners L.P. (“Navios Midstream”), a company formed as a subsidiary of Navios Acquisition, completed an IPO of its common units in the United States and is listed on the NYSE under the symbol “NAP”. As of June 30, 2018, Navios Acquisition owned a 59.0% limited partner interest in Navios Midstream, which included a 2.0% general partner interest. As of June 30, 2018, Navios Holdings had 45.0% of the voting power and 48.3% of the economic interest in Navios Acquisition. As of June 30, 2018, Navios Acquisition had outstanding: 145,244,205 shares of common stock and 1,000 shares of Series C Convertible Preferred Stock held by Navios Holdings.

Summary of Significant Accounti

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 Acquisition’s consolidated balance sheets, statement of changes in equity, 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 accounting principles generally accepted in the United States of America (“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 Acquisition’s 2017 Annual Report filed on Form 20-F with the Securities and Exchange Commission (“SEC”). Change in accounting principle: The Company historically presented changes in restricted cash and cash equivalents depending on the nature of the cash flow within the consolidated statement of cash flows. During the first quarter of 2018, the Company adopted the guidance codified in ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18), which requires that restricted cash and cash equivalents be included as components of total cash and cash equivalents as presented 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 operations, 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 months ended June 30, 2017 resulted in a decrease of operating cash flows in the amount of $33 and a decrease of financing cash flows in the amount of $2,085 with a corresponding decrease in cash and cash equivalents of $2,118. (b) Principles of consolidation: The accompanying consolidated financial statements include the accounts of Navios Acquisition, a Marshall Islands corporation, and its majority owned subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidated statements. The Company also consolidates entities that are determined to be variable interest entities (“VIEs”) as defined in the accounting guidance, if it determines that it is the primary beneficiary. A variable interest entity is defined as a legal entity where either (a) 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, or (b) the equity holders have not provided sufficient equity investment to permit the entity to finance its activities without additional subordinated financial support, or (c) 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. (c) Equity method investments: 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. Navios Acquisition evaluates its equity method investments, for other than temporary impairment, on a quarterly basis. Consideration is given to (1) the length of time and the extent to which the fair value has been less than the carrying value, (2) the financial condition and near-term prospects and (3) the intent and ability of the Company to retain its investments for a period of time sufficient to allow for any anticipated recovery in fair value. (d) Subsidiaries: Subsidiaries are those entities in which the Company has an interest of more than one half of the voting rights and/or otherwise has power to govern the financial and operating policies. The acquisition method of accounting is used to account for the acquisition of subsidiaries if deemed to be a business combination. The cost of an acquisition is measured as the fair value of the assets given up, shares issued or liabilities undertaken at the date of acquisition. The excess of the cost of acquisition over the fair value of the net assets acquired and liabilities assumed is recorded as goodwill. As of June 30, 2018 and 2017 the entities included in these consolidated financial statements were: Navios Maritime Acquisition Corporation and Subsidiaries: Nature Country of Incorporation 2018 2017 Company Name Aegean Sea Maritime Holdings Inc. Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Agistri Shipping Corporation Operating Subsidiary Malta 1/23- 6/30 — Amorgos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Andros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antikithira Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antiparos Shipping Corporation Vessel-Owning Company ( 7 ) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Amindra Navigation Co. Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Crete Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Folegandros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Ikaria Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Ios Shipping Corporation Vessel-Owning Company Cayman Is. 1/1 - 6/30 1/1 - 6/30 Kithira Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kos Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Mytilene Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Maritime Acquisition Corporation Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Acquisition Finance (U.S.) Inc. Co-Issuer Delaware 1/1 - 6/30 1/1 - 6/30 Rhodes Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Serifos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Shinyo Loyalty Limited Vessel-Owning Company (1) Hong Kong 1/1 - 6/30 1/1 - 6/30 Shinyo Navigator Limited Vessel-Owning Company (2) Hong Kong 1/1 - 6/30 1/1 - 6/30 Sifnos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skiathos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skopelos Shipping Corporation Vessel-Owning Company Cayman Is. 1/1 - 6/30 1/1 - 6/30 Syros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Thera Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Tinos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Oinousses Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Psara Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antipsara Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Samothrace Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Thasos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Limnos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skyros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Alonnisos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Makronisos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Iraklia Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Paxos Shipping Corporation Vessel-Owning Company (4) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antipaxos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Donoussa Shipping Corporation Vessel-Owning Company (5) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Schinousa Shipping Corporation Vessel-Owning Company (6) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Acquisition Europe Finance Inc Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kerkyra Shipping Corporation Vessel-Owning Company (3) Marshall Is. 1/1 - 3/29 1/1 - 6/30 Lefkada Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Zakynthos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Leros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kimolos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Samos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Tilos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Delos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Maritime Midstream Partners GP LLC Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 (1) Former vessel-owner of the Shinyo Splendor which was sold to an unaffiliated third party on May 6, 2014. (2) Former vessel-owner of the Shinyo Navigator which was sold to an unaffiliated third party on December 6, 2013. (3) Navios Midstream acquired all of the outstanding shares of capital stock of the vessel-owning subsidiary on March 29, 2018. (4) Former vessel-owner of the Nave Lucida which was sold to an unaffiliated third party on January 27, 2016. (5) Former vessel-owner of the Nave Universe which was sold to an unaffiliated third party on October 4, 2016. (6) Former vessel-owner of the Nave Constellation which was sold to an unaffiliated third party on November 15, 2016. ( 7 ) Currently, vessel-operating company under the sale and leaseback transaction. (e) Use of estimates: The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. On an on-going basis, management evaluates the estimates and judgments, including those related to uncompleted voyages, future dry dock dates, the carrying value of investments in affiliates, the selection of useful lives for tangible assets and scrap value, expected future cash flows from long-lived assets to support impairment tests, provisions necessary for accounts receivable, provisions for legal disputes and contingencies. Management bases its estimates and judgments on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates under different assumptions and/or conditions. (f) Vessels, net : Vessels are stated at historical cost, which consists of the contract price, delivery and acquisition expenses and capitalized interest costs while under construction. Vessels acquired in an asset acquisition or in a business combination are recorded at fair value. Subsequent expenditures for major improvements and upgrading are capitalized, provided they appreciably extend the life, increase the earning capacity or improve the efficiency or safety of the vessels. Expenditures for routine maintenance and repairs are expensed as incurred. Depreciation is computed using the straight line method over the useful life of the vessels, after considering the estimated residual value. Management estimates the residual values of our tanker vessels based on a scrap value of $360 per lightweight ton, as we believe these levels are common in the shipping industry. Residual values are periodically reviewed and revised to recognize changes in conditions, new regulations or other reasons. Revisions of residual values affect the depreciable amount of the vessels and affect depreciation expense in the period of the revision and future periods. Management estimates the useful life of our vessels to be 25 years from the vessel’s original construction. However, when regulations place limitations over the ability of a vessel to trade on a worldwide basis, its useful life is re-estimated to end at the date such regulations become effective. (g) Vessels held for sale: Vessels are classified as “Vessels held for sale” when all of the following criteria are met: management has committed to a plan to sell the vessel; the vessel is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of vessels; an active program to locate a buyer and other actions required to complete the plan to sell the vessel have been initiated; the sale of the vessel is probable and transfer of the vessel is expected to qualify for recognition as a completed sale within one year; the asset is being actively marketed for sale at a price that is reasonable in relation to its current fair value and actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. Vessels classified as held for sale are measured at the lower of their carrying amount or fair value less cost to sell. These vessels are not depreciated once they meet the criteria to be held for sale. (h) Impairment of long-lived asset group: Vessels, other fixed assets and other long-lived assets held and used by Navios Acquisition are reviewed periodically for potential impairment whenever events or changes in circumstances indicate that the carrying amount of a particular asset may not be fully recoverable. Navios Acquisition’s management evaluates the carrying amounts and periods over which long-lived assets are depreciated to determine if events or changes in circumstances have occurred that would require modification to their carrying values or useful lives. In evaluating useful lives and carrying values of long-lived assets, certain indicators of potential impairment are reviewed such as, undiscounted projected operating cash flows, vessel sales and purchases, business plans and overall market conditions. Undiscounted projected net operating cash flows are determined for each asset group (consisting of the individual vessel and the intangible with respect to the time charter agreement to that vessel) and compared to the vessel carrying value and related carrying value of the intangible with respect to the time charter agreement attached to that vessel or the carrying value of deposits for new buildings, if any. Within the shipping industry, vessels are often bought and sold with a charter attached. The value of the charter may be favorable or unfavorable when comparing the charter rate to the then current market rates. The loss recognized either on impairment (or on disposition) will reflect the excess of carrying value over fair value (selling price) for the vessel individual asset group. (i) 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 ASU 2016-02 “Leases”. Upon adoption of ASC 606 and ASC 842, the timing and recognition of earnings from the pool arrangements and time charter contracts to which the Company is party did not change from previous practice. The Company has determined to recognize lease revenue as a combined single lease component for all time charters (operating leases) as the related lease component and non lease component will have the same timing and pattern of the revenue recognition of the combined single lease component. The performance obligations in a time charter contract are satisfied over term of the contract beginning when the vessel is delivered to the charterer until it is redelivered back to the Company. As a result of the adoption of these standards, there was 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. Revenues earned under voyage contracts amounted to $0 and $355 for the three month periods ended June 30, 2018 and 2017, respectively. For the six month periods ended June 30, 2018 and 2017, revenues under voyage contracts amounted to $0 and $2,068, 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. Revenues from time chartering of vessels amounted to $28,846 and $47,029 for the three month periods ended June 30, 2018 and 2017, respectively. For the six month periods ended June 30, 2018 and 2017, revenues from time chartering of vessels amounted to $61,558 and $95,739, 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. Profit sharing for the three month periods ended June 30, 2018 and 2017 amounted to $(11) and $162, respectively. For the six month periods ended June 30, 2018 and 2017, profit sharing revenues amounted to $437 and $215, respectively. 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 in the period in which the variability is resolved. 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. The allocation of such net revenue may be subject to future adjustments by the pool however, such changes are not expected to be material. Revenue for vessels operating in pooling arrangements amounted to $12,644 and $10,912 for the three month periods ended June 30, 2018 and 2017, respectively. For the six month periods ended June 30, 2018 and 2017, revenue operating in pooling arrangements amounted to $25,634 and $24,918, 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. Options to extend or terminate a lease The Company’s vessels have the following options to extent or renew their charters : Vessel Option Nave Bellatrix, Nave Aquila, Nave Capella Charterer’s option to extend the charter for one year at $14.566 net per day. Bougainville Charterer’s option to extend the charter for two years at $14.708 net per day for the first year and $15.002 net per day for the second year, plus profit sharing arrangements for both years. Nave Dorado, Nave Equinox Charterer’s option to extend the charter for one year at $14.813 net per day. Nave Equator Charterer’s option to extend the charter for one year at $14.250 net per day. Nave Pulsar Charterer’s option to extend the charter for one year at $13.455 net per day. Nave Orbit Charterer’s option to extend for one year at $14.750 net per day. Nave Sextans, Nave Pyxis Charterer’s option to extend the charter for one year at $14.500 net per day. Nave Buena Suerte, Nave Quasar Charterer’s option to extend the charter for one year at $20.475 net per day. (j) Restricted Cash: Restricted cash was $2,598 and $5,307 as of June 30, 2018 and December 31, 2017, respectively, and was held as required by certain provisions of Navios Acquisition’s credit facilities. The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the condensed consolidated statements of cash flow s: Reconciliation of cash, cash equivalents and restricted cash: June 3 0 , 2018 December 31, 2017 Current assets: Cash and cash equivalents $ 49,466 $ 81,151 Restricted cash 2,598 5,307 Total cash, cash equivalents and restricted cash $ 52,064 $ 86,458 Adoption of new accounting standards The Company elected to early adopt the requirements of Accounting Standard Update (“ASU”) 2016-02, “Leases (Topic 842)” effective from January 1, 2018 using the modified retrospective method and has also elected the use of the practical expedients. The early adoption of this ASU did not have a material effect on the Company’s consolidated balance sheets, consolidated statements of operations and opening retained earnings. 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 (“ASU”) 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 consolidated financial statement was from the September 2016 meeting, where the SEC staff expressed their 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 ASU did not have a material effect on the Company’s consolidated financial statements. In June 2016, FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This standard requires entities to measure all expected credit losses of financial assets held at a reporting date based on historical experience, current conditions, and reasonable and supportable forecasts in order to record credit losses in a more timely matter. ASU 2016-13 also amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The standard is effective for interim and annual reporting periods beginning after December 15, 2019, although early adoption is permitted for interim and annual periods beginning after December 15, 2018. The Company is currently assessing the impact that adopting this new accounting guidance will have on its consolidated financial statements.

Cash and Cash Equivalents

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 consisted of the following : June 3 0 , 2018 December 31, 2017 Cash on hand and at banks $ 26,208 $ 60,088 Short-term deposits 23,258 21,063 Total cash and cash equivalents $ 49,466 $ 81,151 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. The Company does maintain cash deposits and equivalents in excess of government-provided insurance limits. The Company also minimizes exposure to credit risk by dealing with a diversified group of major financial institutions. In restricted cash there is an amount of $2,598 as of June 30, 2018 and $5,307 as of December 31, 2017 held in retention accounts in order to service debt and interest payments, as required by certain of Navios Acquisition’s credit facilities.

Vessels, Net

Vessels, Net	6 Months Ended
	Jun. 30, 2018
Property, Plant and Equipment [Abstract]
VESSELS, NET	NOTE 4: VESSELS, NET Vessels Cost Accumulated Depreciation Net Book Value Balance at December 31, 2016 $ 1,505,013 $ (198,090 ) $ 1,306,923 Additions — (56,880 ) (56,880 ) Balance at December 31, 2017 $ 1,505,013 $ (254,970 ) $ 1,250,043 Additions — (27,986 ) (27,986 ) Disposals (51,739 ) 7,353 (44,386 ) Balance at June 3 0 , 2018 $ 1,453,274 $ (275,603 ) $ 1,177,671 On March 29, 2018, Navios Acquisition sold all the shares of the vessel-owning subsidiary of the Nave Galactic, a 2009-built VLCC vessel of 297,168 dwt to Navios Midstream for a sale price of $44,500, which was paid as of March 31, 2018. The gain on sale of the vessel, upon write-off of the unamortized dry-docking of $465 and working capital items of $376 (including costs of $200), amounted to $25.

Goodwill

Goodwill	6 Months Ended
	Jun. 30, 2018
Goodwill [Abstract]
GOODWILL	NOTE 5: GOODWILL Goodwill as of June 30, 2018 and December 31, 2017 amounted to : Balance January 1, 2017 $1,579 Balance December 31, 2017 1,579 Balance June 3 0 , 2018 $1,579

Investment in Affiliates

Investment in Affiliates	6 Months Ended
	Jun. 30, 2018
Equity Method Investments And Joint Ventures [Abstract]
INVESTMENT IN AFFILIATES	NOTE 6: INVESTMENT IN AFFILIATES Navios Europe I On October 9, 2013, Navios Holdings, Navios Acquisition and Navios Maritime Partners L.P. (“Navios Partners”) established Navios Europe I and had economic 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 facility (the “Senior Loan 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”). Effective November 2014 and as of June 30, 2018, Navios Holdings, Navios Acquisition and Navios Partners had a voting interest of 50%, 50% and 0%, respectively. On an ongoing basis, Navios Europe I is required to distribute cash flows (after payment of operating expenses, amounts due pursuant to the terms of the Senior Loan I and repayments of the Navios Revolving Loans I) according to a defined waterfall calculation. The Navios Term Loans I will be repaid from the future sale of vessels owned by Navios Europe I and is deemed to be the initial investment by Navios Acquisition. Navios Acquisition evaluated its investment in Navios Europe I under ASC 810 and concluded that Navios Europe I is a VIE and that the Company is not the party most closely associated with Navios Europe I and, accordingly, is not the primary beneficiary of Navios Europe I. Navios Acquisition 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. The fleet of Navios Europe I is managed by subsidiaries of Navios Holdings. As of June 30, 2018 and December 31, 2017, the estimated maximum potential loss by Navios Acquisition in Navios Europe I would have been $25,713 and $24,147, respectively, which represented the Company’s carrying value of its investment of $4,750 (December 31, 2017: $4,750) the Company’s portion of the carrying balance of the Navios Revolving Loans I including accrued interest on the Navios Term Loans I of $15,458 (December 31, 2017: $14,944), which is included under “Due from related parties, long- term” and the accrued interest income on the Navios Revolving Loans I in the amount of $5,505 (December 31, 2017: $4,453) which is included under “Due from related parties, short-term”. Refer to Note 11 for the terms of the Navios Revolving Loans I. Income recognized in “Equity/ (loss) in net earnings of affiliated companies” for the three month period ended June 30, 2018 was $262 (June 30, 2017: $215). Income recognized in “Equity/ (loss) in net earnings of affiliated companies” for the six month period ended June 30, 2018 was $514 (June 30, 2017: $483). Accounting for basis difference The initial investment in Navios Europe I recorded under the equity method of $4,750, at the inception included the Company’s share of the basis difference between the fair value and the underlying book value of the assets of Navios Europe I, which amounted to $6,763. This difference is amortized through “Equity/ (loss) in net earnings of affiliated companies” over the remaining life of Navios Europe I. As of June 30, 2018 and December 31, 2017, the unamortized difference between the carrying amount of the investment in Navios Europe I and the amount of the Company’s underlying equity in net assets of Navios Europe I was $3,696, and $4,034, respectively. Navios Europe II On February 18, 2015, Navios Holdings, Navios Acquisition and Navios Partners established Navios Europe II Inc. and had in such entity economic interests of 47.5%, 47.5% and 5.0%, respectively, and voting interests of 50.0%, 50.0 and 0%, respectively. From June 8, 2015 through December 31, 2015, Navios Europe II acquired fourteen vessels for: (i) cash consideration of $145,550 (which was funded with the proceeds of $131,550 of senior loan facilities (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. In addition to the Navios Term Loans II, Navios Holdings, Navios Acquisition and Navios Partners will also make available to Navios Europe II revolving loans up to $57,500 to fund working capital requirements (collectively, the “Navios Revolving Loans II”). 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. The Navios Term Loans II will be repaid from the future sale of vessels owned by Navios Europe II and is deemed to be the initial investment by Navios Acquisition. Navios Acquisition evaluated its investment in Navios Europe II under ASC 810 and concluded that Navios Europe II is a VIE and that the Company is not the party most closely associated with Navios Europe II and, accordingly, is not the primary beneficiary of Navios Europe II. Navios Acquisition 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. The fleet of Navios Europe II is managed by subsidiaries of Navios Holdings. As of June 30, 2018, the estimated maximum potential loss by Navios Acquisition in Navios Europe II would have been $41,234 (December 31, 2017: $37,741), which represented the Company’s carrying value of the investment of $6,650 (December 31, 2017: $6,650), the Company’s balance of the Navios Revolving Loans II including accrued interest on the Navios Term Loans II of $25,375 (December 31, 2017: $24,412), which is included under “Due from related parties, long-term”, and the accrued interest income on the Navios Revolving Loans II in the amount of $9,209 (December 31, 2017: $6,679), which is included under “Due from related parties, short-term”. Refer to Note 11 for the terms of the Navios Revolving Loans II. Income recognized in “Equity/ (loss) in net earnings of affiliated companies” for the three month period ended June 30, 2018 was $495. (June 30, 2017: $168). Income recognized in “Equity/ (loss) in net earnings of affiliated companies” for the six month period ended June 30, 2018 was $963. (June 30, 2017: $209). Accounting for basis difference The initial investment in Navios Europe II recorded under the equity method of $6,650, at the inception included the Company’s share of the basis difference between the fair value and the underlying book value of the assets of Navios Europe II, which amounted to $9,419. This difference is amortized through “Equity/ (loss) in net earnings of affiliated companies” over the remaining life of Navios Europe II. As of June 30 , 2018, and December 31, 2017, the unamortized difference between the carrying amount of the investment in Navios Europe II and the amount of the Company’s underlying equity in net assets of Navios Europe II was $6,540 and $7,011, respectively. Navios Midstream On October 13, 2014, the Company formed Navios Midstream under the laws of Marshall Islands. Navios Maritime Midstream Partners GP L.L.C. (the “Navios Midstream General Partner”), a wholly owned subsidiary of Navios Acquisition, was also formed on that date to act as the general partner of Navios Midstream and received a 2.0% general partner interest. Navios Midstream completed its IPO in November 2014. The Company evaluated its investment in Navios Midstream (NYSE: NAP) under ASC 810 and concluded that Navios Midstream is not a VIE. The Company further evaluated the power to control the board of directors of Navios Midstream under the voting interest model. As of the date of the IPO of Navios Midstream, Navios Acquisition, as the general partner, delegated all its powers to the board of directors of Navios Midstream and does not have the right to remove or replace the elected directors from the board of directors of Navios Midstream. Elected directors were appointed by the general partner, but as of the date of the IPO of Navios Midstream are deemed to be elected directors. The elected directors represent the majority of the board of directors of Midstream and therefore, the Company concluded that it does not hold a controlling financial interest in Navios Midstream but concluded that it does maintain significant influence and deconsolidated the vessels sold as of the date of the IPO of Navios Midstream. Following the deconsolidation of Navios Midstream, the Company accounts for all of its interest under the equity method of accounting. On February 16, 2017 and May 5, 2017 Navios Acquisition entered into securities purchase agreements with Navios Midstream pursuant to which Navios Acquisition made an investment in Navios Midstream by purchasing 6,446 and 412 general partnership interests, respectively, for a consideration of $79 and $5, respectively, in order to maintain its 2.0% partnership interest in Navios Midstream in light of the continuous offering sales program, launched by Navios Midstream. The Company determined, under the equity method, that the issuance of common units of Navios Midstream qualified as a sale of shares by the investee. As a result, a net loss of $5 and $54 was recognized in “Equity/ (loss) in net earnings of affiliated companies” for the three and six month periods ended June 30, 2017, respectively. No amount was recognized for the three and six month periods ended June 30, 2018. On November 16, 2017, in accordance with the terms of the Navios Midstream Partnership Agreement all of the 9,342,692 subordinated units of Navios Midstream converted into common units on a one-for-one basis. Following their conversion into common units, these units have the same distribution rights as all other common units. On June 18, 2018, in accordance with the terms of the Partnership Agreement all of the issued and outstanding 1,592,920 subordinated Series A units of Navios Midstream converted into Navios Midtsream’s existing common units on a one-for-one basis. Following their conversion into common units, these units have the same distribution rights as all other common units. As of June 30 , 2018, the Company owned a 2.0% general partner interest in Navios Midstream through the Navios Midstream General Partner and a 57.0% limited partnership interest through the ownership of common units based on all of the outstanding common and general partner units. For the three month periods ended June 30, 2018 and 2017, total income from Navios Midstream recognized in “Equity/ (loss) in net earnings of affiliated companies” was $3,472 and $993, respectively. Dividends received during the three month period ended June 30, 2018 were $1,576 ($5,326 for the three month period ended June 30, 2017). For the six month periods ended June 30, 2018 and 2017, total equity method (loss)/ income from Navios Midstream recognized in “Equity/ (loss) in net earnings of affiliated companies” was $(1,536) and $3,452, respectively. Dividends received during the six month period ended June 30, 2018 were $6,902 ($10,649 for the six month period ended June 30, 2017). As of June 30, 2017 the fair value of our investment in Navios Midstream had been below its carrying value for a period over twelve months, due to the decline in the quoted price of the common units of Navios Midstream. During the three and six month periods ended June 30, 2017, the Company recognized a non-cash “other-than-temporary impairment” (“OTTI”) loss of $59,104 relating to its investment in Navios Acquisition and the amount was included in “Equity/ (loss) in net earnings of affiliated companies”. As of June 30 , 2018 and December 31, 2017, the carrying amount of the investment in Navios Midstream was $104,736 and $113,662, respectively. As of June 30 , 2018, the market value of the investment in Navios Midstream was $47,272. Navios Midstream Acquisition Proposal: On June 28, 2018, Navios Acquisition announced that it has submitted a proposal to the board of directors of Navios Midstream to acquire the publicly held units of Navios Midstream not already owned by Navios Acquisition in a stock for units exchange. Subject to negotiation and execution of a definitive agreement, Navios Acquisition is proposing consideration of 6.292 Navios Acquisition shares for each outstanding publicly held common unit of Navios Midstream as part of a transaction that would be structured as a merger of Navios Midstream with and into Navios Acquisition. The proposed transaction is subject to the negotiation and execution of a definitive agreement, approval of the board of directors of Navios Acquisition and the necessary approvals of the conflicts committee of Navios Midstream under Navios Midstream’s limited partnership agreement. The consummation of the proposed transaction would be subject to customary closing conditions. There can be no assurance that any such approvals will be forthcoming, that a definitive agreement will be executed, or that any transaction will be consummated. Accounting for basis difference As of June 30 , 2018 and December 31, 2017, the unamortized difference between the carrying amount of the investment in Navios Midstream and the amount of the Company’s underlying equity in net assets of Navios Midstream was $24,294 and $37,158, respectively, and is amortized through “Equity/ (loss) in net earnings of affiliated companies” over the remaining life of Navios Midstream’s tangible and intangible assets . Summarized financial information of the affiliated company is presented below : June 3 0 , 2018 December 31, 2017 Navios Midstream Balance Sheet Cash and cash equivalents, including restricted cash $ 21,731 $ 37,086 Current assets $ 39,070 $ 62,551 Non-current assets $ 380,752 $ 393,996 Current liabilities $ 5, 584 $ 4,977 Long-term debt including current portion, net of deferred finance costs and discount $ 196, 173 $ 196,514 Non-current liabilities $ 195, 491 $ 195,839 Three month period ended June 30, 2018 Three month period ended June 30, 2017 Navios Midstream Income Statement Revenue $ 20,790 $ 18,510 Net income $ 4,286 $ 1,960 Six month period ended June 30, 2018 Six month period ended June 30, 2017 Navios Midstream Income Statement Revenue $ 40,569 $ 39,610 Net (loss)/ income $ (25,282 ) $ 6,462

Dividend Payable

Dividend Payable	6 Months Ended
	Jun. 30, 2018
Dividends Payable [Abstract]
DIVIDENDS PAYABLE	NOTE 7: DIVIDEND PAYABLE On January 26, 2018, the Board of Directors declared a quarterly cash dividend in respect of the fourth quarter of 2017 of $0.02 per share of common stock payable on March 27, 2018 to stockholders of record as of March 22, 2018. A dividend in the aggregate amount of $3,102 was paid on March 27, 2018 out of which $2,948 was paid to the stockholders of record as of March 22, 2018 and $154 was paid to Navios Holdings, the holder of the 1,000 shares of Series C Convertible Preferred Stock. On May 4, 2018, the Board of Directors declared a quarterly cash dividend in respect of the first quarter of 2018 of $0.02 per share of common stock payable on June 27, 2018 to stockholders of record as of June 21, 2018. A dividend in the aggregate amount of $3,065 was paid on June 27, 2018 out of which $2,911 was paid to the stockholders of record as of June 21, 2018 and $154 was paid to Navios Holdings, the holder of the 1,000 shares of Series C Convertible Preferred Stock. The declaration and payment of any further dividends remain subject to the discretion of the Board of Directors and will depend on, among other things, Navios Acquisition’s cash requirements as measured by market opportunities and restrictions under its credit agreements and other debt obligations and such other factors as the Board of Directors may deem advisable.

Accrued Expenses

Accrued Expenses	6 Months Ended
	Jun. 30, 2018
Accrued Expenses [Abstract]
ACCRUED EXPENSES	NOTE 8: ACCRUED EXPENSES Accrued expenses as of June 30, 2018 and December 31, 2017 consisted of the following: June 3 0 , 2018 December 31, 2017 Accrued voyage expenses $ 1, 119 $ 1,437 Accrued loan interest 9,412 8,910 Accrued legal and professional fees 2,844 1,864 Total accrued expenses $ 13,375 $ 12,211 As of June 30 , 2018 and December 31, 2017 the amount of $1,860 and $1,675, respectively, was included in accrued legal and professional fees that was authorized and approved by the Compensation Committee of Navios Acquisition in December 2017 to the directors and/or officers of the Company, subject to fulfillment of certain service conditions that were provided and completed as of June 30, 2018, and as of December 31, 2017, respectively. An amount of $1,805 is recorded in general and administrative expenses on the statements of operations for the three and the six month periods ended June 30, 2018, being compensation authorized to the directors/ officers of the Company ($1,000 for the three and the six month periods ended June 30, 2017).

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2018
Borrowings [Abstract]
BORROWINGS	NOTE 9: BORROWINGS June 30, 2018 December 31, 2017 Commerzbank AG, Alpha Bank AE, Credit Agricole Corporate and Investment Bank $ — $ 71,500 BNP Paribas S.A. and DVB Bank S.E. 54,000 56,250 Eurobank Ergasias S.A. $52,200 34,205 35,569 Eurobank Ergasias S.A. $52,000 32,430 33,654 Norddeutsche Landesbank Girozentrale 23,047 23,828 DVB Bank S.E. and Credit Agricole Corporate and Investment Bank 44,141 45,703 Ship Mortgage Notes $670,000 670,000 670,000 Deutsche Bank AG Filiale Deutschlandgeschäft and Skandinaviska Enskilda Banken AB 50,682 82,327 BNP Paribas $44,000 34,000 3 6 ,000 HSH $24,000 21,712 22,856 Total credit facilities 964,217 1,0 77 , 68 7 CMB Financial Leasing Co. 71,500 — Total borrowings 1,035,717 1,0 77 , 68 7 Less: Deferred finance costs, net (13,350 ) ( 13,470 ) Add: bond premium 1,024 1, 152 Less: current portion of credit facilities, net of deferred finance costs (43,260 ) ( 36,410 ) Less: current portion of CMB Financial Leasing Co., net of deferred finance costs (5,543 ) — Total long-term borrowings, net of current portion, bond premium and deferred finance costs $ 974,588 $ 1,02 8,959 Long-Term Debt Obligations and Credit Arrangements Ship Mortgage Notes: 8 1/8% First Priority Ship Mortgages: On November 13, 2013, the Company and its wholly owned subsidiary, Navios Acquisition Finance (US) Inc. (“Navios Acquisition Finance” and together with the Company, the “2021 Co-Issuers”) issued $610,000 in first priority ship mortgage notes (the “Existing Notes”) due on November 15, 2021 at a fixed rate of 8.125%. On March 31, 2014, the Company completed a sale of $60,000 of its first priority ship mortgage notes due in 2021 (the “Additional Notes,” and together with the Existing Notes, the “2021 Notes”). The terms of the Additional Notes are identical to the Existing Notes and were issued at 103.25% plus accrued interest from November 13, 2013. The 2021 Notes are fully and unconditionally guaranteed on a joint and several basis by all of Navios Acquisition’s subsidiaries with the exception of Navios Acquisition Finance (a co-issuer of the 2021 Notes). The 2021 Co-Issuers currently have the option to redeem the 2021 Notes in whole or in part, at a fixed price of approximately 106.094% of the principal amount, which price declines ratably until it reaches par in 2019, plus accrued and unpaid interest, if any. In addition, upon the occurrence of certain change of control events, the holders of the 2021 Notes will have the right to require the 2021 Co-Issuers to repurchase some or all of the 2021 Notes at 101% of their face amount, plus accrued and unpaid interest to the repurchase date. The 2021 Notes contain covenants which, among other things, limit the incurrence of additional indebtedness, issuance of certain preferred stock, the payment of dividends, redemption or repurchase of capital stock or making restricted payments and investments, creation of certain liens, transfer or sale of assets, entering in transactions with affiliates, merging or consolidating or selling all or substantially all of the 2021 Co-Issuers’ properties and assets and creation or designation of restricted subsidiaries. The 2021 Co-Issuers were in compliance with the covenants as of June 30, 2018. The Existing Notes and the Additional Notes are treated as a single class for all purposes under the indenture including, without limitation, waivers, amendments, redemptions and other offers to purchase and the Additional Notes rank evenly with the Existing Notes. The Additional Notes and the Existing Notes have the same CUSIP number. Guarantees The Company’s 2021 Notes are fully and unconditionally guaranteed on a joint and several basis by all of the Company’s subsidiaries with the exception of Navios Acquisition Finance (a co-issuer of the 2021 Notes). The Company’s 2021 Notes are unregistered. The guarantees of our subsidiaries that own mortgaged vessels are senior secured guarantees and the guarantees of our subsidiaries that do not own mortgaged vessels are senior unsecured guarantees. All subsidiaries, including Navios Acquisition Finance, are 100% owned. Navios Acquisition does not have any independent assets or operations. Except as provided above, Navios Acquisition does not have any subsidiaries that are not guarantors of the 2021 Notes. Credit Facilities As of June 30, 2018, the Company had secured credit facilities with various banks with a total outstanding balance of $365,717. The purpose of the facilities was to finance the construction or acquisition of vessels or refinance existing indebtedness. All of the facilities are denominated in U.S. Dollars and bear interest based on LIBOR plus spread ranging from 230 bps to 305 bps per annum. The facilities are repayable in either semi-annual or quarterly installments, followed by balloon payments with maturities, ranging from June 2019 to April 2024. See also the maturity table included below. ABN AMRO Bank N.V.: In February 2017, the Company drew $26,650 under this credit facility with ABN AMRO Bank N.V. which was secured with its two chemical tankers, following the full repayment of the previous financing arrangements. The maturity date of the loan was in February 2018. The loan bore interest at LIBOR plus 400 bps per annum. In June, 2017, the Company prepaid the outstanding balance of $26,000 and an amount of $697 was written-off from the deferred finance costs. HSH Nordbank: In June 2017, Navios Acquisition entered into a loan facility for an amount of $24,000 to refinance the credit facility with ABN AMRO Bank N.V. of its two chemical tankers. The facility is repayable in 17 equal consecutive quarterly installments of $572 each, with a final balloon payment of the balance to be repaid on the last repayment date. The facility matures in September 2021 and bears interest at LIBOR plus 300 bps per annum. As of June 30, 2018, the outstanding balance was $21,712. Commerzbank AG, Alpha Bank A.E., and Credit Agricole Corporate and Investment Bank: Navios Acquisition assumed a loan agreement dated April 7, 2010, with Commerzbank AG, Alpha Bank A.E. and Credit Agricole Corporate and Investment Bank of up to $150,000 (divided in six equal tranches of $25,000 each) to partially finance the construction of two chemical tankers and four product tankers. Each tranche of the facility is repayable in 12 equal semi-annual installments of $750 each with a final balloon payment of $16,000 to be repaid on the last repayment date. The repayment of each tranche started six months after the delivery date of the respective vessel which that tranche financed. It bears interest at a rate of LIBOR plus 250 bps. The loan also requires compliance with certain financial covenants. On January 27, 2017, Navios Acquisition repaid $16,000 being the balloon instalment for another of the remaining five tranches. In April 2018, the Company fully repaid the outstanding balance of $69,250. Following the prepayment, an amount of $19 was written-off in condensed consolidated statement of operations. Deutsche Bank AG Filiale Deutschlandgeschäft and Skandinaviska Enskilda Banken AB : In November 2015, Navios Acquisition, entered into a term loan facility of up to $125,000 (divided into five tranches) with Deutsche Bank AG Filiale Deutschlandgeschäft and Skandinaviska Enskilda Banken AB for the: (i) financing of the purchase price of the Nave Spherical; and (ii) the refinancing of the existing facility with Deutsche Bank AG Filiale Deutschlandgescäft and Skandinaviska Enskilda Banken AB, dated July 18, 2014. Four of the five tranches of the facility are repayable in 20 quarterly installments of between approximately $435 and $1,896, each with a final balloon repayment to be made on the last repayment date. The fifth tranche is repayable in 16 quarterly installments of between approximately $709 and $803, each. The maturity date of the loan is in the fourth quarter of 2020. The credit facility bears interest at LIBOR plus 295 bps per annum. On March 23, 2018, Navios Acquisition prepaid $26,770, being the respective tranche of the Deutsche Bank AG Filiale Deutschlandgeschäft and Skandinaviska Enskilda Banken AB facility that was drawn to finance the Nave Equinox and the Nave Pyxis, which substituted the Nave Galactic as collateral vessels under the 8 1/8% 2021 Notes. Following the prepayment, an amount of $297 was written-off in condensed consolidated statement of operations. As of June 30, 2018 the outstanding balance under this facility was $50,682. As of June 30, 2018, no amount was available to be drawn from our facilities. Amounts drawn under the facilities are secured by first preferred mortgages on Navios Acquisition’s vessels and other collateral and are guaranteed by each vessel-owning subsidiary. The credit facilities contain a number of restrictive covenants that prohibit or limit Navios Acquisition from, among other things: incurring or guaranteeing indebtedness; entering into affiliate transactions; changing the flag, class, management or ownership of Navios Acquisition’s vessels; changing the commercial and technical management of Navios Acquisition’s vessels; selling Navios Acquisition’s vessels; and subordinating the obligations under each credit facility to any general and administrative costs relating to the vessels, including the fixed daily fee payable under the management agreement. The credit facilities also require Navios Acquisition to comply with the ISM Code and ISPS Code and to maintain valid safety management certificates and documents of compliance at all times. Sale and Leaseback Agreement On March 31, 2018, Navios Acquisition entered into a $71,500 sale and leaseback agreement with CMB Financial Leasing Co., Ltd to refinance the outstanding balance of the existing facility on four product tankers. Navios Acquisition has a purchase obligation at the end of the lease term and under ASC 842-40, the transaction accounted for as a failed sale and leaseback transaction and resulted in a finance lease. The agreement will be repayable in 24 equal consecutive quarterly installments of $1,490 each, with a repurchase obligation of $35,750 on the last repayment date. The agreement matures in April 2024 and bears interest at LIBOR plus 305 bps per annum. In April 2018, the Company drew $71,500 under this agreement. As of June 30, 2018, the outstanding balance under this agreement was $71,500 and the proceeds net of the deferred finance costs are included within line item “Loan proceeds, net of deferred finance costs” of the Financing Activities in the condensed consolidated statements of cash flows. The loan facilities include, among other things, compliance with loan to value ratios and certain financial covenants: (i) minimum liquidity at the higher of $40,000 or $1,000 per vessel; (ii) net worth ranging from $50,000 to $135,000; and (iii) total liabilities divided by total assets, adjusted for market values to be generally lower than 75% or 80% and for certain facilities, as amended for a specific period of time up to a maximum of two quarters (from the current balance sheet date), to be ranging from a maximum of 80% to 85%. It is an event of default under the credit facilities if such covenants are not complied with, including the loan to value ratios for which the Company may provide sufficient additional security to prevent such an event. The maturity table below reflects the principal payments of all notes, credit facilities and the CMB Financial Leasing Co agreement outstanding as of June 30, 2018 for the next five years and thereafter are based on the repayment schedule of the respective loan facilities (as described above) and the outstanding amount due under the 2021 Notes . Amount Long-Term Debt Obligations: Year June 3 0 , 2019 $ 50,282 June 3 0 , 2020 92,031 June 3 0 , 2021 79,805 June 3 0 , 2022 733,118 June 3 0 , 2023 38,771 June 3 0 , 2024 and thereafter 41,710 Total $ 1,035,717 As of June 30 , 2018, the Company was in compliance with its covenants.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2018
Fair Value of Financial Instruments [Abstract]
FAIR VALUE OF FINANCIAL INSTRUMENTS	NOTE 10: FAIR VALUE OF FINANCIAL INSTRUMENTS The following methods and assumptions were used to estimate the fair value of each class of financial instruments: 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. 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. Other long-term debt, net of deferred finance cost: The outstanding balance of the floating rate loans approximates its fair value, excluding the effect of any deferred finance cost. Ship Mortgage Notes and premiums: The fair value of the 2021 Notes, which has a fixed rate, was determined based on quoted market prices, as indicated in the table below . June 3 0 , 2018 December 31, 2017 Book Value Fair Value Book Value Fair Value Cash and cash equivalents $ 49,466 $ 49,466 $ 81,151 $ 81,151 Restricted cash $ 2,598 $ 2,598 $ 5,307 $ 5,307 Ship mortgage notes and premium $ 662,402 $ 548, 274 $ 661,463 $ 572,214 Other long-term debt, net of deferred finance cost $ 360,989 $ 365,717 $ 403,906 $ 407,687 Due from related parties, long-term $ 54,218 $ 54,218 $ 54,593 $ 54,593 The Company’s assets measured at fair value on a non-recurring basis were: Fair Value Measurements as of June 30, 2018 Total Quoted Prices in Active Markets for Identical Assets (Level I) Significant Other Observable Inputs (Level II) Significant Unobservable Inputs (Level III) Investment in affiliates $ 47,272 $ 47,272 $ — $ — As of June 30, 2018, the carrying amount of the investment in Navios Midstream was $104,736. As of June 30, 2018, the market value of the investment in Navios Midstream was $47,272 and was determined with reference to the quoted price of the common units of $3.75 per unit, which ranged from a high of $10.32 per unit to a low of $3.29 per unit during the six months ended June 30, 2018. Management considers the volatility and decline in the market value of its investment in Navios Midstream to be temporary and no adjustment to the carrying value of our investment was deemed necessary as of June 30, 2018 as we have both the ability and intent to hold our investment in Navios Midstream. 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 . Fair Value Measurements at June 30, 2018 Using Total Level I Level II Level III Cash and cash equivalents $ 49,466 $ 49,466 $ — $ — Restricted cash $ 2,598 $ 2,598 $ — $ — Ship mortgage notes and premium $ 548, 274 $ 548, 274 $ — $ — Other long-term debt (1) $ 365,717 $ — $ 365,717 $ — Due from related parties, long-term (2) $ 54,218 $ — $ 54,218 $ — Fair Value Measurements at December 31, 2017 Using Total Level I Level II Level III Cash and cash equivalents $ 81,151 $ 81,151 $ — $ — Restricted cash $ 5,307 $ 5,307 $ — $ — Ship mortgage notes and premium $ 572,214 $ 572,214 $ — $ — Other long-term debt (1) $ 407,687 $ — $ 407,687 $ — Due from related parties, long-term (2) $ 54,593 $ — $ 54,593 $ — (1)The fair value of the Company’s other long-term debt is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the Company’s creditworthiness. (2)The fair value of the Company’s long term amounts due from related parties is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the counterparty’s creditworthiness.

Transactions with Related Parti

Transactions with Related Parties	6 Months Ended
	Jun. 30, 2018
Transactions with related parties [Abstract]
TRANSACTIONS WITH RELATED PARTIES	NOTE 11: TRANSACTIONS WITH RELATED PARTIES The Navios Holdings Credit Facilities: On September 19, 2016, Navios Acquisition entered into a $70,000 secured loan facility with Navios Holdings. The loan facility was secured by all of Navios Holdings’ interest in Navios Acquisition and 78.5% of Navios Holdings’ interest in Navios South American Logistics Inc. (“Navios Logistics”), representing a majority of the shares outstanding of Navios Logistics. The secured loan facility provided for an arrangement fee of $700, was available for up to five drawings and has a fixed interest rate of 8.75% with a maturity date of November 15, 2018. The arrangement fee was deferred and amortized using the effective interest rate method. On November 3, 2017, Navios Holdings prepaid in full the outstanding amount with a payment of $55,132. The prepayment amount consisted of the $50,000 drawn under the facility and $5,132 of accrued interest. As of each of June 30, 2018 and December 31, 2017, the outstanding receivable balance was $0. Total interest income, including amortization of deferred fees, for the three and six month periods ended June 30, 2018 amounted to $0 . Total interest income, including amortization of deferred fees, for the three and six month periods ended June 30, 2017 amounted to $1,206 and $2,398, respectively . Management fees: Pursuant to the Management Agreement dated May 28, 2010 and as amended in May 2012, May 2014 and May 2016, the Manager provided commercial and technical management services to Navios Acquisition’s vessels for a fixed daily fee of: (a) $6.35 per MR2 product tanker and chemical tanker vessel; (b) $7.15 per LR1 product tanker vessel; and (c) $9.5 per VLCC, through May 2018. Pursuant to an amendment to the Management Agreement dated as of May 3, 2018, Navios Acquisition fixed the fees for commercial and technical ship management services of its fleet for two additional years from May 29, 2018 through May 2020, at a daily fee of: (a) $6.5 per MR2 product tanker and chemical tanker vessel; (b) $7.15 per LR1 product tanker vessel; and (c) the current daily fee of $9.5 per VLCC. Dry docking expenses are reimbursed by Navios Acquisition at cost. Total management fees for each of the three month periods ended June 30, 2018 and 2017 amounted to $22,913 and $23,678, respectively. Total management fees for each of the six month periods ended June 30, 2018 and 2017 amounted to $46,312 and $47,096, respectively. General and administrative expenses: Pursuant to the Administrative Services Agreement with Navios Holdings, pursuant to which Navios Holdings provides certain administrative management services to Navios Acquisition 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 services. Navios Holdings is reimbursed for reasonable costs and expenses incurred in connection with the provision of these services. In May 2014, Navios Acquisition extended the duration of its existing Administrative Services Agreement with Navios Holdings, until May 2020. For each of the three month periods ended June 30, 2018 and 2017 the expense arising from administrative services rendered by Navios Holdings amounted to $2,188 and $2,250, respectively. For each of the six month periods ended June 30, 2018 and 2017 the expense arising from administrative services rendered by Navios Holdings amounted to $4,435 and $4,500, respectively. Balance due from related parties (excluding Navios Europe I, Navios Europe II and Navios Holdings Credit Facility): Balance due from related parties as of June 30 , 2018 and December 31, 2017 was $13,385 and $18,036, respectively, and included the short-term and long-term amounts due from Navios Holdings. The balances mainly consisted of administrative expenses and special survey and dry docking expenses for certain vessels of our fleet, as well as management fees, in accordance with the Management Agreement. Balance due to related parties, short-term: Amounts due to related parties, short-term as of June 30 , 2018 and December 31, 2017 was $10,064 and $17,107, respectively, and mainly consisted of backstop commitment liability payable to Navios Midstream. In the first quarter of 2018, Navios Acquisition paid to Navios Midstream the amount of $16,391 regarding the backstop commitment. Navios Midstream Acquisition Proposal: On June 28, 2018, Navios Acquisition announced that it has submitted a proposal to the board of directors of Navios Midstream to acquire the publicly held units of Navios Midstream not already owned by Navios Acquisition in a stock for units exchange. Please refer to Navios Midstream Acquisition Proposal under Note 6 “Investment in Affiliates”. Omnibus Agreements Acquisition Omnibus Agreement: Navios Acquisition entered into an omnibus agreement (the “Acquisition Omnibus Agreement”) with Navios Holdings and Navios Partners 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 container vessels 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-in drybulk carriers under specific exceptions. Under the Acquisition Omnibus Agreement, Navios Acquisition and its subsidiaries grant 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 they might own. These rights of first offer will not apply to a: (a) sale, transfer or other disposition of vessels between any affiliated subsidiaries, or pursuant to the existing terms of any charter or other agreement with a counterparty; or (b) merger with or into, or sale of substantially all of the assets to, an unaffiliated third party. Midstream Omnibus Agreement: Navios Acquisition entered into an omnibus agreement (the “Midstream Omnibus Agreement”), with Navios Midstream, Navios Holdings and Navios Partners in connection with the Navios Midstream IPO, pursuant to which Navios Acquisition, Navios Midstream, Navios Holdings, Navios Partners and their controlled affiliates generally have agreed not to acquire or own any VLCCs, crude oil tankers, refined petroleum product tankers, liquefied petroleum gas (“LPG”) tankers or chemical tankers under time charters of five or more years without the consent of the Navios Midstream General Partner. The Midstream Omnibus Agreement contains significant exceptions that will allow Navios Acquisition, Navios Holdings, Navios Partners or any of their controlled affiliates to compete with Navios Midstream under specified circumstances. Under the Midstream Omnibus Agreement, Navios Midstream and its subsidiaries will grant to Navios Acquisition a right of first offer on any proposed sale, transfer or other disposition of any of its VLCCs or any crude oil tankers, refined petroleum product tankers, LPG tankers or chemical tankers and related charters owned or acquired by Navios Midstream. Likewise, Navios Acquisition will agree (and will cause its subsidiaries to agree) to grant a similar right of first offer to Navios Midstream for any of the VLCCs, crude oil tankers, refined petroleum product tankers, LPG tankers or chemical tankers under charter for five or more years it might own. These rights of first offer will not apply to a: (a) sale, transfer or other disposition of vessels between any affiliated subsidiaries, or pursuant to the terms of any charter or other agreement with a charter party, or (b) merger with or into, or sale of substantially all of the assets to, an unaffiliated third-party. Navios Containers Omnibus Agreement: In connection with the Navios Maritime Containers Inc. (“Navios Containers”) private placement and listing on the Norwegian over-the-counter market effective June 8, 2017, Navios Acquisition entered into an omnibus agreement with Navios Containers, Navios Midstream, Navios Holdings and Navios Partners, pursuant to which Navios Acquisition, Navios Holdings, Navios Partners and Navios Midstream have granted to Navios Containers a right of first refusal over any container vessels to be sold or acquired in the future. The omnibus agreement contains significant exceptions that will allow Navios Acquisition, Navios Holdings, Navios Partners and Navios Midstream to compete with Navios Containers under specified circumstances. Backstop Agreement: On November 18, 2014, Navios Acquisition entered into backstop agreements with Navios Midstream. In accordance with the terms of the backstop agreements, Navios Acquisition has provided backstop commitments for a two-year period as of the redelivery of each of the Nave Celeste, the Shinyo Ocean and the Shinyo Kannika from their original charters, at a net rate of $35, $38.4 and $38, respectively. Backstop commitments are triggered if the actual rates achieved are below the backstop rates. The Company has recognized an accrued liability of $5,714 and $4,075 as “Time charter and voyage expenses” in the condensed consolidated statements of operations for the three month periods ended June 30, 2018 and 2017, respectively, which the Company believes represents a reasonable estimate of the loss for the backstop agreements. The Company has recognized an accrued liability of $10,581 and an amount of $5,231 as “Time charter and voyage expenses” in the condensed consolidated statements of operations for the six month periods ended June 30, 2018 and 2017, respectively, which the Company believes represents a reasonable estimate of the loss for the backstop agreements. As of December 31, 2017, the accrued liability recognized was $16,391 and was paid to Navios Midstream in the first quarter of 2018. The backstop commitment for the Shinyo Kannika was terminated in relation to the sale of this vessel in March 2018. Navios Acquisition agreed to extend the backstop commitment of the Shinyo Kannika to the Nave Galactic, following the sale of the latter to Navios Midstream in March 2018. Navios Midstream General Partner Option Agreement with Navios Holdings: Navios Acquisition entered into an option agreement, dated November 18, 2014, with Navios Holdings under which Navios Acquisition grants Navios Holdings the option to acquire any or all of the outstanding membership interests in Navios Midstream General Partner and all of the incentive distribution rights in Navios Midstream representing the right to receive an increasing percentage of the quarterly distributions when certain conditions are met. The option shall expire on November 18, 2024. Any such exercise shall relate to not less than twenty-five percent of the option interest and the purchase price for the acquisition of all or part of the option interest shall be an amount equal to its fair market value. Option Vessels: In connection with the IPO of Navios Midstream, Navios Acquisition granted options to Navios Midstream, initially exercisable until November 18, 2016, to purchase seven VLCCs (two of which, the Nave Celeste and the C. Dream were sold to Navios Midstream in June 2015 pursuant to such option) from Navios Acquisition at fair market value. On October 25, 2016, Navios Acquisition extended the option periods on three of the five remaining VLCCs, the Nave Buena Suerte, the Nave Neutrino and the Nave Electron, for an additional two-year period expiring on November 18, 2018. The purchase options pursuant to the extended period do not include any backstop commitments from Navios Acquisition. Sale of C. Dream and Nave Celeste: As of June 30, 2018 and as of December 31, 2017, the unamortized deferred gain for all vessels and rights sold totaled $7,218 and $7,708, respectively, of which an amount of $862 and $979, respectively, was included in “Deferred revenue”. For the three month periods ended June 30, 2018 and 2017, Navios Acquisition recognized $245 and $253 of the deferred gain, respectively, in “Equity/ (loss) in net earnings of affiliated companies”. For the six month periods ended June 30, 2018 and 2017, Navios Acquisition recognized $489 and $626 of the deferred gain, respectively, in “Equity/ (loss) in net earnings of affiliated companies”. Participation in offerings of affiliates: On July 29, 2016, Navios Midstream launched a continuous offering sales program of its common units for an aggregate offering of up to $25,000. Refer also to Note 6 “Investment in affiliates”. On February 16, 2017 and May 5, 2017 Navios Acquisition entered into securities purchase agreements with Navios Midstream pursuant to which Navios Acquisition made an investment in Navios Midstream by purchasing 6,446 and 412 general partnership interests, respectively, for a consideration of $79 and $5, respectively, in order to maintain its 2.0% partnership interest in Navios Midstream in light of such continuous offering sales program. The Company determined, under the equity method, that the issuance of common units of Navios Midstream qualified as a sale of shares by the investee. As a result, a net loss of $5 and $54 was recognized in “Equity/ (loss) in net earnings of affiliated companies” for the three and six month periods ended June 30, 2017, respectively. No amount was recognized as of June 30, 2018. 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. See Note 6 for the Investment in Navios Europe I. Balance due from Navios Europe I as of June 30, 2018 amounted to $20,963 (December 31, 2017: $19,397) which included the Navios Revolving Loans I of $11,770 (December 31, 2017: $11,770), the non-current amount of $3,688 (December 31, 2017: $3,174) related to the accrued interest income earned under the Navios Term Loans I under the caption “Due from related parties, long-term” and the accrued interest income earned under the Navios Revolving Loans I of $5,505 (December 31, 2017: $4,453) under the caption “Due from related parties, short-term.” 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. There are no covenant requirements or stated maturity dates. 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. In March 2017, the availability under the Navios Revolving Loans II was increased by $14,000. See Note 6 for the Investment in Navios Europe II. Balance due from Navios Europe II as of June 30, 2018 amounted to $34,584 (December 31, 2017: $31,091) which included the Navios Revolving Loans II of $20,662 (December 31, 2017: $20,662), the non-current amount of $4,713 (December 31, 2017: $3,750) related to the accrued interest income earned under the Navios Term Loans II under the caption “Due from related parties, long-term” and the accrued interest income earned under the Navios Revolving Loans II of $9,209 (December 31, 2017: $6,679) under the caption “Due from related parties, short-term.” 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. There are no covenant requirements or stated maturity dates. As of June 30, 2018, the amount undrawn under the Navios Revolving Loans II was $15,003, of which Navios Acquisition may be required to fund an amount ranging from $0 to $15,003.

Commitments and Contigencies

Commitments and Contigencies	6 Months Ended
	Jun. 30, 2018
Commitment and Contigencies [Abstract]
COMMITMENTS AND CONTINGENCIES	NOTE 12: COMMITMENTS AND CONTINGENCIES On November 18, 2014, Navios Acquisition entered into backstop agreements with Navios Midstream. In accordance with the terms of the backstop agreements, Navios Acquisition has provided backstop commitments for a two-year period as of the redelivery of each of the Nave Celeste, the Shinyo Ocean and the Shinyo Kannika from their original charters, at a net rate of $35, $38.4 and $38, respectively. Backstop commitments are triggered if the actual rates achieved are below the backstop rates. The backstop commitment for the Shinyo Kannika was terminated in relation to the sale of this vessel in March 2018. Navios Acquisition agreed to extend the backstop commitment of the Shinyo Kannika to the Nave Galactic, following the sale of the latter to Navios Midstream in March 2018. The Company 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 the Company believes that a liability may be probable, and for which the amounts are reasonably estimable, based upon facts known at the date of the financial statements were prepared. In the opinion of the management, the ultimate disposition of these matters individually and in aggregate will not materially affect the Company’s financial position, results of operations or liquidity.

Preferred and Common Stock

Preferred and Common Stock	6 Months Ended
	Jun. 30, 2018
Preferred and Common Stock [Abstract]
PREFERRED AND COMMON STOCK	NOTE 13: PREFERRED AND COMMON STOCK Preferred Stock Series C Convertible Preferred Stock The Company is authorized to issue up to 10,000,000 shares of $0.0001 par value preferred stock in total with such designations, voting and other rights and preferences as may be determined from time to time by the Board of Directors. As of each of June 30, 2018 and December 31, 2017 the Company’s issued and outstanding preferred stock consisted of the 1,000 Series C Convertible Preferred Stock held by Navios Holdings in exchange for 7,676,000 shares of Navios Acquisition’s common stock. Common Stock and puttable common stock On January 17, 2017, Navios Acquisition redeemed, through the holder’s put option, 100,000 shares of puttable common stock and paid cash of $1,000 to the holder upon redemption. On May 8, 2017, Navios Acquisition redeemed, through the holder’s put option, 75,000 shares of puttable common stock and paid cash of $750 to the holder upon redemption. On August 8, 2017, Navios Acquisition redeemed, through the holder’s put option, 50,000 shares of puttable common stock and paid cash of $500 to the holder upon redemption. On October 2, 2017, Navios Acquisition redeemed, through the holder’s put option, 25,000 shares of puttable common stock and paid cash of $250 to the holder upon redemption. After this redemption there are no shares of puttable common stock outstanding. In December 2017, Navios Acquisition authorized and issued in the aggregate 1,774,915 restricted shares of common stock to its directors and officers. These awards of restricted common stock are based on service conditions only and vest over four years. As of June 30, 2018, the Company was authorized to issue 250,000,000 shares of $0.0001 par value common stock of which 145,244,205 were issued and outstanding. In February 2018, the Board of Directors of Navios Acquisition authorized a stock repurchase program for up to $25,000 of Navios Acquisition’s common stock, for two years. Stock repurchases will be made from time to time for cash in open market transactions at prevailing market prices or in privately negotiated transactions. The timing and amount of repurchases under the program will be determined by management based upon market conditions and other factors. Repurchases may be made pursuant to a program adopted under Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. The program does not require any minimum repurchase or any specific number or amount of shares of common stock and may be suspended or reinstated at any time in Navios Acquisition’s discretion and without notice. The Board of Directors will review the program periodically. Repurchases will be subject to restrictions under Navios Acquisition’s credit facilities and indenture. As of June 30, 2018, the Company had repurchased and cancelled 6,863,700 shares of common stock, at a total cost of approximately $5,556. Stock based compensation In December 2017, Navios Acquisition authorized and issued in the aggregate 1,774,915 restricted shares of common stock to its directors and officers. These awards of restricted common stock are based on service conditions only and vest over four years. The holders of restricted stock are entitled to dividends paid on the same schedule as paid to the stock holders of the company. The fair value of restricted stock is determined by reference to the quoted stock price on the date of grant of $1.18 per share (or total fair value of $2,094). Compensation expense is recognized based on a graded expense model over the vesting period. The effect of compensation expense arising from the stock-based arrangement described above amounted to $272 and $0 for the three month periods ended June 30 , 2018 and 2017, respectively, and it is reflected in general and administrative expenses on the statement of operations. The recognized compensation expense for the year is presented as adjustment to reconcile net (loss)/ income to net cash provided by operating activities on the statements of cash flows. For the six month period ended June 30, 2018 and 2017, the effect of compensation expense arising from the stock-based arrangement described above amounted to $541 and $0, respectively. There were no restricted stock or stock options exercised, forfeited or expired during the six month period ended June 30, 2018. Restricted shares outstanding and not vested amounted to 1,774,915 shares as of June 30, 2018. The estimated compensation cost relating to service conditions of non-vested restricted stock, not yet recognized was $1,497 as of June 30 , 2018 and is expected to be recognized over the weighted average contractual life of stock options of 3.5 years. The weighted average contractual life of the 1,500,000 stock options outstanding, that were issued in October 2013 and vested ratably through a three year period, was 5.3 years as of June 30 , 2018.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Information [Abstract]
SEGMENT INFORMATION	NOTE 14: SEGMENT INFORMATION Navios Acquisition reports financial information and evaluates its operations by charter revenues. Navios Acquisition does not use discrete financial information to evaluate operating results for each type of charter. As a result, management reviews operating results solely by revenue per day and operating results of the fleet and thus Navios Acquisition has determined that it operates under one reportable segment. The following table sets out operating revenue by geographic region for Navios Acquisition’s reportable segment. Revenue is allocated on the basis of the geographic region in which the customer is located. Tanker vessels operate worldwide. Revenues from specific geographic region which contribute over 10% of total revenue are disclosed separately. Revenue by Geographic Region 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 (unaudited) Three Month Period ended June 30, 2017 (unaudited) Six Month Period ended June 30, 2018 (unaudited) Six Month Period ended June 30, 2017 (unaudited) Asia $ 24,027 $ 34,722 $ 52,791 $ 72,754 Europe 7,450 10,536 14,701 22,502 United States 10,002 13,200 20,137 27,684 Total $ 41,479 $ 58,458 $ 87,629 $ 122,940

Earnings_ (Loss) per Common Sha

Earnings/ (Loss) per Common Share	6 Months Ended
	Jun. 30, 2018
Earnings/ (Loss) per Common Share [Abstract]
EARNINGS/ (LOSS) PER COMMON SHARE	NOTE 15: EARNINGS/ (LOSS) PER COMMON SHARE Earnings/ (loss) per share is calculated by dividing net income attributable to common stockholders by the weighted average number of shares of common stock of Navios Acquisition outstanding during the period. Potential common shares of 10,950,915 for the three and six month periods ended June 30 , 2018 (which includes Series C Convertible Preferred Stock, stock options and restricted shares), have an anti-dilutive effect (i.e., those that increase earnings per share or decrease loss per share) and are therefore excluded from the calculation of diluted earnings per share. Potential common shares of 9,176,000 (which includes Series C Convertible Preferred Stock and Stock options) for the three and six month periods ended June 30, 2017 have an anti-dilutive effect (i.e. those that increase income per share or decrease loss per share) and are therefore excluded from the calculation of diluted income/(loss) per share. For the Three Months Ended June 30, 2018 For the Three Months Ended June 30 2017 For the Six Months Ended June 30, 2018 For the Six Months Ended June 30, 2017 Numerator: Net loss $ (22,068 ) $ (64,417 ) $ (46,534 ) $ (58,802 ) Less: Dividend declared on restricted shares (35 ) — (71 ) — Undistributed loss attributable to Series C participating preferred shares 1,117 3,127 2,321 2,855 Net loss attributable to common stockholders, basic $ (20, 986 ) $ (61,290 ) $ (44,284 ) $ (55,947 ) Plus: Dividend declared on restricted shares — — — — Net loss attributable to common stockholders, diluted $ (20, 986 ) $ (61,290 ) $ (44,284 ) $ (55,947 ) Denominator: Denominator for basic net loss per share — weighted average shares 144,228,909 150,436,836 146,378,370 150,468,625 Series A preferred stock — — — — Restricted shares — — — — Denominator for diluted net loss per share — adjusted weighted average shares 144,228,909 150,436,836 146,378,370 150,468,625 Net loss per share, basic and diluted $ (0.15 ) $ (0.41 ) $ (0.30 ) $ (0.37 )

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Taxes [Abstract]
INCOME TAXES	NOTE 16: INCOME TAXES Marshall Islands, Cayman Islands, British Virgin Islands, and Hong Kong, do not impose a tax on international shipping income. Under the laws of these countries, the countries of incorporation of the Company and its subsidiaries and /or vessels’ registration, the companies are subject to registration and tonnage taxes which have been included in the daily management fee. 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 vessels’ 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. In the event that tonnage tax and/or similar taxes/duties are paid to the vessel’s flag state, these are deducted from the amount of the duty to be paid in Greece. The amount included in Navios Acquisition’s statements of operations related to the Greek Tonnage tax for the six months ended June 30, 2018, and 2017 was $772 and $480, respectively, and for the three months ended June 30, 2018 and 2017, it was $274 and $68, respectively. Pursuant to Section 883 of the Internal Revenue Code of the United States (the “Code”), 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 Navios Acquisition’s ship-operating subsidiaries satisfy these initial criteria. In addition, these companies must meet an ownership test. Subject to proposed regulations becoming finalized in their current form, the management of Navios Acquisition believes by virtue of a special rule applicable to situations where the ship operating companies are beneficially owned by a publicly traded company like Navios Acquisition, the second criterion can also be satisfied based on the trading volume and ownership of the Company’s shares, but no assurance can be given that this will remain so in the future.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	NOTE 17: SUBSEQUENT EVENTS On July 31, 2018 , the Board of Directors declared a quarterly cash dividend in respect of the second quarter of 2018 of $0.02 per share of common stock payable on September 27, 2018 to stockholders of record as of September 20, 2018. The declaration and payment of any further dividends remain subject to the discretion of the Board of Directors and will depend on, among other things, Navios Acquisition’s cash requirements as measured by market opportunities and restrictions under its credit agreements and other debt obligations and such other factors as the Board of Directors may deem advisable. In August 2018, Navios Acquisition agreed to the main terms of a 12-year bareboat charter-in agreement with de-escalating purchase options for two newbuild Japanese VLCCs delivering in the third and fourth quarter of 2020, respectively. The bareboat charter-in agreement reflects an implied price of approximately $84,500 per vessel and an annual effective interest of approximately 6% fixed for the duration of the agreement. Concurrently, Navios Acquisition agreed to the main terms of bareboat charter-out agreements with a duration of 10 years for each vessel plus a five-year optional period granted to the charterer. The bareboat charter-out rate is $27.8 net per day, $29.8 net per day for the optional period, and the charterer is granted de-escalating purchase options. The above structure is subject to definitive documentation and there can be no assurances that it will be completed in full or that, if agreed upon, will be pursuant to the terms described above.

Summary of Significant Accoun24

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2018
Summary of Significant Accounting Policies [Abstract]
Basis of presentation	(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 Acquisition’s consolidated balance sheets, statement of changes in equity, 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 accounting principles generally accepted in the United States of America (“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 Acquisition’s 2017 Annual Report filed on Form 20-F with the Securities and Exchange Commission (“SEC”).
Change in accounting principle	Change in accounting principle: The Company historically presented changes in restricted cash and cash equivalents depending on the nature of the cash flow within the consolidated statement of cash flows. During the first quarter of 2018, the Company adopted the guidance codified in ASU 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18), which requires that restricted cash and cash equivalents be included as components of total cash and cash equivalents as presented 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 operations, 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 months ended June 30, 2017 resulted in a decrease of operating cash flows in the amount of $33 and a decrease of financing cash flows in the amount of $2,085 with a corresponding decrease in cash and cash equivalents of $2,118.
Principles of consolidation	(b) Principles of consolidation: The accompanying consolidated financial statements include the accounts of Navios Acquisition, a Marshall Islands corporation, and its majority owned subsidiaries. All significant intercompany balances and transactions have been eliminated in the consolidated statements. The Company also consolidates entities that are determined to be variable interest entities (“VIEs”) as defined in the accounting guidance, if it determines that it is the primary beneficiary. A variable interest entity is defined as a legal entity where either (a) 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, or (b) the equity holders have not provided sufficient equity investment to permit the entity to finance its activities without additional subordinated financial support, or (c) 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.
Equity method investments	(c) Equity method investments: 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. Navios Acquisition evaluates its equity method investments, for other than temporary impairment, on a quarterly basis. Consideration is given to (1) the length of time and the extent to which the fair value has been less than the carrying value, (2) the financial condition and near-term prospects and (3) the intent and ability of the Company to retain its investments for a period of time sufficient to allow for any anticipated recovery in fair value.
Subsidiaries	(d) Subsidiaries: Subsidiaries are those entities in which the Company has an interest of more than one half of the voting rights and/or otherwise has power to govern the financial and operating policies. The acquisition method of accounting is used to account for the acquisition of subsidiaries if deemed to be a business combination. The cost of an acquisition is measured as the fair value of the assets given up, shares issued or liabilities undertaken at the date of acquisition. The excess of the cost of acquisition over the fair value of the net assets acquired and liabilities assumed is recorded as goodwill. As of June 30, 2018 and 2017 the entities included in these consolidated financial statements were: Navios Maritime Acquisition Corporation and Subsidiaries: Nature Country of Incorporation 2018 2017 Company Name Aegean Sea Maritime Holdings Inc. Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Agistri Shipping Corporation Operating Subsidiary Malta 1/23- 6/30 — Amorgos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Andros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antikithira Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antiparos Shipping Corporation Vessel-Owning Company ( 7 ) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Amindra Navigation Co. Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Crete Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Folegandros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Ikaria Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Ios Shipping Corporation Vessel-Owning Company Cayman Is. 1/1 - 6/30 1/1 - 6/30 Kithira Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kos Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Mytilene Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Maritime Acquisition Corporation Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Acquisition Finance (U.S.) Inc. Co-Issuer Delaware 1/1 - 6/30 1/1 - 6/30 Rhodes Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Serifos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Shinyo Loyalty Limited Vessel-Owning Company (1) Hong Kong 1/1 - 6/30 1/1 - 6/30 Shinyo Navigator Limited Vessel-Owning Company (2) Hong Kong 1/1 - 6/30 1/1 - 6/30 Sifnos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skiathos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skopelos Shipping Corporation Vessel-Owning Company Cayman Is. 1/1 - 6/30 1/1 - 6/30 Syros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Thera Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Tinos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Oinousses Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Psara Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antipsara Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Samothrace Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Thasos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Limnos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skyros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Alonnisos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Makronisos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Iraklia Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Paxos Shipping Corporation Vessel-Owning Company (4) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antipaxos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Donoussa Shipping Corporation Vessel-Owning Company (5) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Schinousa Shipping Corporation Vessel-Owning Company (6) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Acquisition Europe Finance Inc Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kerkyra Shipping Corporation Vessel-Owning Company (3) Marshall Is. 1/1 - 3/29 1/1 - 6/30 Lefkada Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Zakynthos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Leros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kimolos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Samos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Tilos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Delos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Maritime Midstream Partners GP LLC Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 (1) Former vessel-owner of the Shinyo Splendor which was sold to an unaffiliated third party on May 6, 2014. (2) Former vessel-owner of the Shinyo Navigator which was sold to an unaffiliated third party on December 6, 2013. (3) Navios Midstream acquired all of the outstanding shares of capital stock of the vessel-owning subsidiary on March 29, 2018. (4) Former vessel-owner of the Nave Lucida which was sold to an unaffiliated third party on January 27, 2016. (5) Former vessel-owner of the Nave Universe which was sold to an unaffiliated third party on October 4, 2016. (6) Former vessel-owner of the Nave Constellation which was sold to an unaffiliated third party on November 15, 2016. ( 7 ) Currently, vessel-operating company under the sale and leaseback transaction.
Use of estimates	(e) Use of estimates: The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities as of the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. On an on-going basis, management evaluates the estimates and judgments, including those related to uncompleted voyages, future dry dock dates, the carrying value of investments in affiliates, the selection of useful lives for tangible assets and scrap value, expected future cash flows from long-lived assets to support impairment tests, provisions necessary for accounts receivable, provisions for legal disputes and contingencies. Management bases its estimates and judgments on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates under different assumptions and/or conditions.
Vessels, net	(f) Vessels, net : Vessels are stated at historical cost, which consists of the contract price, delivery and acquisition expenses and capitalized interest costs while under construction. Vessels acquired in an asset acquisition or in a business combination are recorded at fair value. Subsequent expenditures for major improvements and upgrading are capitalized, provided they appreciably extend the life, increase the earning capacity or improve the efficiency or safety of the vessels. Expenditures for routine maintenance and repairs are expensed as incurred. Depreciation is computed using the straight line method over the useful life of the vessels, after considering the estimated residual value. Management estimates the residual values of our tanker vessels based on a scrap value of $360 per lightweight ton, as we believe these levels are common in the shipping industry. Residual values are periodically reviewed and revised to recognize changes in conditions, new regulations or other reasons. Revisions of residual values affect the depreciable amount of the vessels and affect depreciation expense in the period of the revision and future periods. Management estimates the useful life of our vessels to be 25 years from the vessel’s original construction. However, when regulations place limitations over the ability of a vessel to trade on a worldwide basis, its useful life is re-estimated to end at the date such regulations become effective.
Vessels held for sale	(g) Vessels held for sale: Vessels are classified as “Vessels held for sale” when all of the following criteria are met: management has committed to a plan to sell the vessel; the vessel is available for immediate sale in its present condition subject only to terms that are usual and customary for sales of vessels; an active program to locate a buyer and other actions required to complete the plan to sell the vessel have been initiated; the sale of the vessel is probable and transfer of the vessel is expected to qualify for recognition as a completed sale within one year; the asset is being actively marketed for sale at a price that is reasonable in relation to its current fair value and actions required to complete the plan indicate that it is unlikely that significant changes to the plan will be made or that the plan will be withdrawn. Vessels classified as held for sale are measured at the lower of their carrying amount or fair value less cost to sell. These vessels are not depreciated once they meet the criteria to be held for sale.
Impairment of long-lived asset group	(h) Impairment of long-lived asset group: Vessels, other fixed assets and other long-lived assets held and used by Navios Acquisition are reviewed periodically for potential impairment whenever events or changes in circumstances indicate that the carrying amount of a particular asset may not be fully recoverable. Navios Acquisition’s management evaluates the carrying amounts and periods over which long-lived assets are depreciated to determine if events or changes in circumstances have occurred that would require modification to their carrying values or useful lives. In evaluating useful lives and carrying values of long-lived assets, certain indicators of potential impairment are reviewed such as, undiscounted projected operating cash flows, vessel sales and purchases, business plans and overall market conditions. Undiscounted projected net operating cash flows are determined for each asset group (consisting of the individual vessel and the intangible with respect to the time charter agreement to that vessel) and compared to the vessel carrying value and related carrying value of the intangible with respect to the time charter agreement attached to that vessel or the carrying value of deposits for new buildings, if any. Within the shipping industry, vessels are often bought and sold with a charter attached. The value of the charter may be favorable or unfavorable when comparing the charter rate to the then current market rates. The loss recognized either on impairment (or on disposition) will reflect the excess of carrying value over fair value (selling price) for the vessel individual asset group.
Revenue Recognition	(i) 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 ASU 2016-02 “Leases”. Upon adoption of ASC 606 and ASC 842, the timing and recognition of earnings from the pool arrangements and time charter contracts to which the Company is party did not change from previous practice. The Company has determined to recognize lease revenue as a combined single lease component for all time charters (operating leases) as the related lease component and non lease component will have the same timing and pattern of the revenue recognition of the combined single lease component. The performance obligations in a time charter contract are satisfied over term of the contract beginning when the vessel is delivered to the charterer until it is redelivered back to the Company. As a result of the adoption of these standards, there was 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. Revenues earned under voyage contracts amounted to $0 and $355 for the three month periods ended June 30, 2018 and 2017, respectively. For the six month periods ended June 30, 2018 and 2017, revenues under voyage contracts amounted to $0 and $2,068, 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. Revenues from time chartering of vessels amounted to $28,846 and $47,029 for the three month periods ended June 30, 2018 and 2017, respectively. For the six month periods ended June 30, 2018 and 2017, revenues from time chartering of vessels amounted to $61,558 and $95,739, 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. Profit sharing for the three month periods ended June 30, 2018 and 2017 amounted to $(11) and $162, respectively. For the six month periods ended June 30, 2018 and 2017, profit sharing revenues amounted to $437 and $215, respectively. 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 in the period in which the variability is resolved. 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. The allocation of such net revenue may be subject to future adjustments by the pool however, such changes are not expected to be material. Revenue for vessels operating in pooling arrangements amounted to $12,644 and $10,912 for the three month periods ended June 30, 2018 and 2017, respectively. For the six month periods ended June 30, 2018 and 2017, revenue operating in pooling arrangements amounted to $25,634 and $24,918, 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. Options to extend or terminate a lease The Company’s vessels have the following options to extent or renew their charters : Vessel Option Nave Bellatrix, Nave Aquila, Nave Capella Charterer’s option to extend the charter for one year at $14.566 net per day. Bougainville Charterer’s option to extend the charter for two years at $14.708 net per day for the first year and $15.002 net per day for the second year, plus profit sharing arrangements for both years. Nave Dorado, Nave Equinox Charterer’s option to extend the charter for one year at $14.813 net per day. Nave Equator Charterer’s option to extend the charter for one year at $14.250 net per day. Nave Pulsar Charterer’s option to extend the charter for one year at $13.455 net per day. Nave Orbit Charterer’s option to extend for one year at $14.750 net per day. Nave Sextans, Nave Pyxis Charterer’s option to extend the charter for one year at $14.500 net per day. Nave Buena Suerte, Nave Quasar Charterer’s option to extend the charter for one year at $20.475 net per day.
Restricted Cash	(j) Restricted Cash: Restricted cash was $2,598 and $5,307 as of June 30, 2018 and December 31, 2017, respectively, and was held as required by certain provisions of Navios Acquisition’s credit facilities. The following table provides a reconciliation of cash, cash equivalents and restricted cash to amounts reported within the condensed consolidated statements of cash flow s: Reconciliation of cash, cash equivalents and restricted cash: June 3 0 , 2018 December 31, 2017 Current assets: Cash and cash equivalents $ 49,466 $ 81,151 Restricted cash 2,598 5,307 Total cash, cash equivalents and restricted cash $ 52,064 $ 86,458
Adoption of new accounting standards	Adoption of new accounting standards The Company elected to early adopt the requirements of Accounting Standard Update (“ASU”) 2016-02, “Leases (Topic 842)” effective from January 1, 2018 using the modified retrospective method and has also elected the use of the practical expedients. The early adoption of this ASU did not have a material effect on the Company’s consolidated balance sheets, consolidated statements of operations and opening retained earnings. 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	Recent Accounting Pronouncements In January 2017, FASB issued Accounting Standard Update (“ASU”) 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 consolidated financial statement was from the September 2016 meeting, where the SEC staff expressed their 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 ASU did not have a material effect on the Company’s consolidated financial statements. In June 2016, FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This standard requires entities to measure all expected credit losses of financial assets held at a reporting date based on historical experience, current conditions, and reasonable and supportable forecasts in order to record credit losses in a more timely matter. ASU 2016-13 also amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The standard is effective for interim and annual reporting periods beginning after December 15, 2019, although early adoption is permitted for interim and annual periods beginning after December 15, 2018. The Company is currently assessing the impact that adopting this new accounting guidance will have on its consolidated financial statements.

Summary of Significant Accoun25

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2018
Summary of Significant Accounting Policies [Abstract]
Navios Maritime Acquisition Corporation and Subsidiaries	Navios Maritime Acquisition Corporation and Subsidiaries: Nature Country of Incorporation 2018 2017 Company Name Aegean Sea Maritime Holdings Inc. Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Agistri Shipping Corporation Operating Subsidiary Malta 1/23- 6/30 — Amorgos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Andros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antikithira Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antiparos Shipping Corporation Vessel-Owning Company ( 7 ) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Amindra Navigation Co. Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Crete Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Folegandros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Ikaria Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Ios Shipping Corporation Vessel-Owning Company Cayman Is. 1/1 - 6/30 1/1 - 6/30 Kithira Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kos Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Mytilene Shipping Corporation Vessel-Owning Company (7) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Maritime Acquisition Corporation Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Acquisition Finance (U.S.) Inc. Co-Issuer Delaware 1/1 - 6/30 1/1 - 6/30 Rhodes Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Serifos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Shinyo Loyalty Limited Vessel-Owning Company (1) Hong Kong 1/1 - 6/30 1/1 - 6/30 Shinyo Navigator Limited Vessel-Owning Company (2) Hong Kong 1/1 - 6/30 1/1 - 6/30 Sifnos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skiathos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skopelos Shipping Corporation Vessel-Owning Company Cayman Is. 1/1 - 6/30 1/1 - 6/30 Syros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Thera Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Tinos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Oinousses Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Psara Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antipsara Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Samothrace Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Thasos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Limnos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Skyros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Alonnisos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Makronisos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Iraklia Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Paxos Shipping Corporation Vessel-Owning Company (4) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Antipaxos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Donoussa Shipping Corporation Vessel-Owning Company (5) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Schinousa Shipping Corporation Vessel-Owning Company (6) Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Acquisition Europe Finance Inc Sub-Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kerkyra Shipping Corporation Vessel-Owning Company (3) Marshall Is. 1/1 - 3/29 1/1 - 6/30 Lefkada Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Zakynthos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Leros Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Kimolos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Samos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Tilos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Delos Shipping Corporation Vessel-Owning Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 Navios Maritime Midstream Partners GP LLC Holding Company Marshall Is. 1/1 - 6/30 1/1 - 6/30 (1) Former vessel-owner of the Shinyo Splendor which was sold to an unaffiliated third party on May 6, 2014. (2) Former vessel-owner of the Shinyo Navigator which was sold to an unaffiliated third party on December 6, 2013. (3) Navios Midstream acquired all of the outstanding shares of capital stock of the vessel-owning subsidiary on March 29, 2018. (4) Former vessel-owner of the Nave Lucida which was sold to an unaffiliated third party on January 27, 2016. (5) Former vessel-owner of the Nave Universe which was sold to an unaffiliated third party on October 4, 2016. (6) Former vessel-owner of the Nave Constellation which was sold to an unaffiliated third party on November 15, 2016. ( 7 ) Currently, vessel-operating company under the sale and leaseback transaction.
Charter Options	Vessel Option Nave Bellatrix, Nave Aquila, Nave Capella Charterer’s option to extend the charter for one year at $14.566 net per day. Bougainville Charterer’s option to extend the charter for two years at $14.708 net per day for the first year and $15.002 net per day for the second year, plus profit sharing arrangements for both years. Nave Dorado, Nave Equinox Charterer’s option to extend the charter for one year at $14.813 net per day. Nave Equator Charterer’s option to extend the charter for one year at $14.250 net per day. Nave Pulsar Charterer’s option to extend the charter for one year at $13.455 net per day. Nave Orbit Charterer’s option to extend for one year at $14.750 net per day. Nave Sextans, Nave Pyxis Charterer’s option to extend the charter for one year at $14.500 net per day. Nave Buena Suerte, Nave Quasar Charterer’s option to extend the charter for one year at $20.475 net per day.
Reconciliation of cash, cash equivalents and restricted cash	Reconciliation of cash, cash equivalents and restricted cash: June 3 0 , 2018 December 31, 2017 Current assets: Cash and cash equivalents $ 49,466 $ 81,151 Restricted cash 2,598 5,307 Total cash, cash equivalents and restricted cash $ 52,064 $ 86,458

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	6 Months Ended
	Jun. 30, 2018
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	June 3 0 , 2018 December 31, 2017 Cash on hand and at banks $ 26,208 $ 60,088 Short-term deposits 23,258 21,063 Total cash and cash equivalents $ 49,466 $ 81,151

Vessels, Net (Tables)

Vessels, Net (Tables)	6 Months Ended
	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Schedule of Vessels, Net	Vessels Cost Accumulated Depreciation Net Book Value Balance at December 31, 2016 $ 1,505,013 $ (198,090 ) $ 1,306,923 Additions — (56,880 ) (56,880 ) Balance at December 31, 2017 $ 1,505,013 $ (254,970 ) $ 1,250,043 Additions — (27,986 ) (27,986 ) Disposals (51,739 ) 7,353 (44,386 ) Balance at June 3 0 , 2018 $ 1,453,274 $ (275,603 ) $ 1,177,671

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill [Abstract]
Schedule of Goodwill	Balance January 1, 2017 $1,579 Balance December 31, 2017 1,579 Balance June 3 0 , 2018 $1,579

Investment in Affiliates (Table

Investment in Affiliates (Tables)	6 Months Ended
	Jun. 30, 2018
Equity Method Investments And Joint Ventures [Abstract]
Summarized Financial Information - Balance Sheet Data	June 3 0 , 2018 December 31, 2017 Navios Midstream Balance Sheet Cash and cash equivalents, including restricted cash $ 21,731 $ 37,086 Current assets $ 39,070 $ 62,551 Non-current assets $ 380,752 $ 393,996 Current liabilities $ 5, 584 $ 4,977 Long-term debt including current portion, net of deferred finance costs and discount $ 196, 173 $ 196,514 Non-current liabilities $ 195, 491 $ 195,839
Summarized Financial Information - Income Statement Data	Three month period ended June 30, 2018 Three month period ended June 30, 2017 Navios Midstream Income Statement Revenue $ 20,790 $ 18,510 Net income $ 4,286 $ 1,960 Six month period ended June 30, 2018 Six month period ended June 30, 2017 Navios Midstream Income Statement Revenue $ 40,569 $ 39,610 Net (loss)/ income $ (25,282 ) $ 6,462

Accrued Expenses (Tables)

Accrued Expenses (Tables)	6 Months Ended
	Jun. 30, 2018
Accrued Expenses [Abstract]
Schedule of Accrued Expenses	June 3 0 , 2018 December 31, 2017 Accrued voyage expenses $ 1, 119 $ 1,437 Accrued loan interest 9,412 8,910 Accrued legal and professional fees 2,844 1,864 Total accrued expenses $ 13,375 $ 12,211

Borrowings (Tables)

Borrowings (Tables)	6 Months Ended
	Jun. 30, 2018
Borrowings [Abstract]
Schedule of Borrowings	June 30, 2018 December 31, 2017 Commerzbank AG, Alpha Bank AE, Credit Agricole Corporate and Investment Bank $ — $ 71,500 BNP Paribas S.A. and DVB Bank S.E. 54,000 56,250 Eurobank Ergasias S.A. $52,200 34,205 35,569 Eurobank Ergasias S.A. $52,000 32,430 33,654 Norddeutsche Landesbank Girozentrale 23,047 23,828 DVB Bank S.E. and Credit Agricole Corporate and Investment Bank 44,141 45,703 Ship Mortgage Notes $670,000 670,000 670,000 Deutsche Bank AG Filiale Deutschlandgeschäft and Skandinaviska Enskilda Banken AB 50,682 82,327 BNP Paribas $44,000 34,000 3 6 ,000 HSH $24,000 21,712 22,856 Total credit facilities 964,217 1,0 77 , 68 7 CMB Financial Leasing Co. 71,500 — Total borrowings 1,035,717 1,0 77 , 68 7 Less: Deferred finance costs, net (13,350 ) ( 13,470 ) Add: bond premium 1,024 1, 152 Less: current portion of credit facilities, net of deferred finance costs (43,260 ) ( 36,410 ) Less: current portion of CMB Financial Leasing Co., net of deferred finance costs (5,543 ) — Total long-term borrowings, net of current portion, bond premium and deferred finance costs $ 974,588 $ 1,02 8,959
Long-Term Debt Obligations	Amount Long-Term Debt Obligations: Year June 3 0 , 2019 $ 50,282 June 3 0 , 2020 92,031 June 3 0 , 2021 79,805 June 3 0 , 2022 733,118 June 3 0 , 2023 38,771 June 3 0 , 2024 and thereafter 41,710 Total $ 1,035,717

Fair Value of Financial Instr32

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value of Financial Instruments [Abstract]
Fair Value of Financial Instruments	June 3 0 , 2018 December 31, 2017 Book Value Fair Value Book Value Fair Value Cash and cash equivalents $ 49,466 $ 49,466 $ 81,151 $ 81,151 Restricted cash $ 2,598 $ 2,598 $ 5,307 $ 5,307 Ship mortgage notes and premium $ 662,402 $ 548, 274 $ 661,463 $ 572,214 Other long-term debt, net of deferred finance cost $ 360,989 $ 365,717 $ 403,906 $ 407,687 Due from related parties, long-term $ 54,218 $ 54,218 $ 54,593 $ 54,593
Fair Value of Financial Instruments measured on a Non-Recurring Basis	Fair Value Measurements as of June 30, 2018 Total Quoted Prices in Active Markets for Identical Assets (Level I) Significant Other Observable Inputs (Level II) Significant Unobservable Inputs (Level III) Investment in affiliates $ 47,272 $ 47,272 $ — $ —
Fair value Measurements on a Nonrecurring Basis	Fair Value Measurements at June 30, 2018 Using Total Level I Level II Level III Cash and cash equivalents $ 49,466 $ 49,466 $ — $ — Restricted cash $ 2,598 $ 2,598 $ — $ — Ship mortgage notes and premium $ 548, 274 $ 548, 274 $ — $ — Other long-term debt (1) $ 365,717 $ — $ 365,717 $ — Due from related parties, long-term (2) $ 54,218 $ — $ 54,218 $ — Fair Value Measurements at December 31, 2017 Using Total Level I Level II Level III Cash and cash equivalents $ 81,151 $ 81,151 $ — $ — Restricted cash $ 5,307 $ 5,307 $ — $ — Ship mortgage notes and premium $ 572,214 $ 572,214 $ — $ — Other long-term debt (1) $ 407,687 $ — $ 407,687 $ — Due from related parties, long-term (2) $ 54,593 $ — $ 54,593 $ — (1)The fair value of the Company’s other long-term debt is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the Company’s creditworthiness. (2)The fair value of the Company’s long term amounts due from related parties is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the counterparty’s creditworthiness.

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Information [Abstract]
Revenue by Geographic Region	Three Month Period ended June 30, 2018 (unaudited) Three Month Period ended June 30, 2017 (unaudited) Six Month Period ended June 30, 2018 (unaudited) Six Month Period ended June 30, 2017 (unaudited) Asia $ 24,027 $ 34,722 $ 52,791 $ 72,754 Europe 7,450 10,536 14,701 22,502 United States 10,002 13,200 20,137 27,684 Total $ 41,479 $ 58,458 $ 87,629 $ 122,940

Earnings_ (Loss) per Common S34

Earnings/ (Loss) per Common Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings/ (Loss) per Common Share [Abstract]
Schedule of Earnings per Common Share	For the Three Months Ended June 30, 2018 For the Three Months Ended June 30 2017 For the Six Months Ended June 30, 2018 For the Six Months Ended June 30, 2017 Numerator: Net loss $ (22,068 ) $ (64,417 ) $ (46,534 ) $ (58,802 ) Less: Dividend declared on restricted shares (35 ) — (71 ) — Undistributed loss attributable to Series C participating preferred shares 1,117 3,127 2,321 2,855 Net loss attributable to common stockholders, basic $ (20, 986 ) $ (61,290 ) $ (44,284 ) $ (55,947 ) Plus: Dividend declared on restricted shares — — — — Net loss attributable to common stockholders, diluted $ (20, 986 ) $ (61,290 ) $ (44,284 ) $ (55,947 ) Denominator: Denominator for basic net loss per share — weighted average shares 144,228,909 150,436,836 146,378,370 150,468,625 Series A preferred stock — — — — Restricted shares — — — — Denominator for diluted net loss per share — adjusted weighted average shares 144,228,909 150,436,836 146,378,370 150,468,625 Net loss per share, basic and diluted $ (0.15 ) $ (0.41 ) $ (0.30 ) $ (0.37 )

Description of Organization a35

Description of Organization and Business Operations (Details) - shares	6 Months Ended	9 Months Ended
	Jun. 30, 2018	Oct. 13, 2014	Dec. 31, 2017
Description of Organization and Business Operations [Abstract]
Entity date of incorporation	Mar. 14, 2008
Entity date of Initial Public Offering	Jul. 1, 2008
Navios Holdings' voting interest in Navios Acquisition	45.00%
Navios Holdings' economic interest in Navios Acquisition	48.30%
Common stock shares outstanding	145,244,205		152,107,905
Navios Midstream
General partner interest	2.00%	2.00%
Limited partner interest including general partner interest	59.00%
Series C Convertible Preferred Stock
Preferred stock shares outstanding	1,000		1,000

Summary of Significant Accoun36

Summary of Significant Accounting Policies - Subsidiaries (Table) (Details)	6 Months Ended
	Jun. 30, 2018
Aegean Sea Maritime Holdings Inc.
Subsidiaries Nature, Country of Incorporation List
Nature	Sub-Holding Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Agistri Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Operating Subsidiary
Country of Incorporation	Malta
Statement Of Operations
2,018	1/23 - 6/30
2,017	-
Amorgos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Andros Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Antikithira Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Antiparos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[1]
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Amindra Navigation Co.
Subsidiaries Nature, Country of Incorporation List
Nature	Sub-Holding Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Crete Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Folegandros Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Ikaria Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[1]
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Ios Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Cayman Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Kithira Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Kos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[1]
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Mytilene Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[1]
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Navios Maritime Acquisition Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Holding Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Navios Acquisition Finance (U.S.) Inc.
Subsidiaries Nature, Country of Incorporation List
Nature	Co-Issuer
Country of Incorporation	Delaware
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Rhodes Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Serifos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Shinyo Loyalty Limited
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[2]
Country of Incorporation	Hong Kong
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Shinyo Navigator Limited
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[3]
Country of Incorporation	Hong Kong
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Sifnos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Skiathos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Skopelos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Cayman Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Syros Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Thera Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Tinos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Oinousses Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Psara Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Antipsara Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Samothrace Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Thasos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Limnos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Skyros Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Alonnisos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Makronisos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Iraklia Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Paxos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[4]
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Antipaxos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Donoussa Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[5]
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Schinousa Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[6]
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Navios Acquisition Europe Finance Inc
Subsidiaries Nature, Country of Incorporation List
Nature	Sub-Holding Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Sikinos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Kerkyra Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company	[7]
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 3/29
2,017	1/1 - 6/30
Lefkada Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Zakynthos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Leros Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Kimolos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Samos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Tilos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Delos Shipping Corporation
Subsidiaries Nature, Country of Incorporation List
Nature	Vessel-Owning Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
Navios Maritime Midstream Partners GP LLC
Subsidiaries Nature, Country of Incorporation List
Nature	Holding Company
Country of Incorporation	Marshall Is.
Statement Of Operations
2,018	1/1 - 6/30
2,017	1/1 - 6/30
[1]	Currently, vessel-operating company under the sale and leaseback transaction.
[2]	Former vessel-owner of the Shinyo Splendor which was sold to an unaffiliated third party on May 6, 2014.
[3]	Former vessel-owner of the Shinyo Navigator which was sold to an unaffiliated third party on December 6, 2013.
[4]	Former vessel-owner of the Nave Lucida which was sold to an unaffiliated third party on January 27, 2016.
[5]	Former vessel-owner of the Nave Universe which was sold to an unaffiliated third party on October 4, 2016.
[6]	Former vessel-owner of the Nave Constellation which was sold to an unaffiliated third party on November 15, 2016.
[7]	Navios Midstream acquired all of the outstanding shares of capital stock of the vessel-owning subsidiary on March 29, 2018.

Summary of Significant Accoun37

Summary of Significant Accounting Policies, Options to extend or terminate a lease (Table) (Details)	6 Months Ended
	Jun. 30, 2018USD ($)
Nave Bellatrix, Nave Aquila, Nave Capella | Extention for one year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	$ 14,566
Bougainville | Extention for the first year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	14,708
Bougainville | Extention for the second year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	15,002
Nave Dorado, Nave Equinox | Extention for one year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	14,813
Nave Equator | Extention for one year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	14,250
Nave Pulsar | Extention for one year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	13,455
Nave Orbit | Extention for one year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	14,750
Nave Sextans, Nave Pyxis | Extention for one year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	14,500
Nave Buena Suerte, Nave Quasar | Extention for one year
Related Party Transaction [Line Items]
Charter Hire Daily Rate	$ 20,475

Summary of Significant Accoun38

Summary of Significant Accounting Standards, Restricted Cash (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Reconciliation of cash, cash equivalents and restricted cash
Cash and cash equivalents	$ 49,466	$ 81,151
Restricted cash	2,598	5,307
Total cash, cash equivalents and restricted cash	$ 52,064	$ 86,458	$ 56,792	$ 56,658

Summary of Significant Accoun39

Summary of Significant Accounting Policies (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Related Party Transaction [Line Items]
Restricted cash	$ 2,598,000		$ 2,598,000		$ 5,307,000
Depreciation method			straight line
Scrap value per light weight ton			$ 360
Vessels estimated useful life			25 years
Revenue for Vessels	41,479,000	$ 58,458,000	$ 87,629,000	$ 122,940,000
Voyage contracts
Related Party Transaction [Line Items]
Revenue for Vessels	0	355,000	0	2,068,000
Time chartering
Related Party Transaction [Line Items]
Revenue for Vessels	28,846,000	47,029,000	61,558,000	95,739,000
Profit sharing
Related Party Transaction [Line Items]
Revenue for Vessels	(11,000)	162,000	437,000	215,000
Pooling arrangements
Related Party Transaction [Line Items]
Revenue for Vessels	$ 12,644,000	$ 10,912,000	$ 25,634,000	24,918,000
Effect of retrospective application
Related Party Transaction [Line Items]
Increase/ (decrease) in net cash provided by operating activities				(33,000)
Increase/ (decrease) in net cash provided financing activities				(2,085,000)
Increase/ (decrease) in cash and cash equivalents				$ (2,118,000)

Cash and Cash Equivalents - Sch

Cash and Cash Equivalents - Schedule (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Cash and Cash Equivalents [Abstract]
Cash on hand and at banks	$ 26,208	$ 60,088
Short-term deposits	23,258	21,063
Total cash and cash equivalents	$ 49,466	$ 81,151

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash	$ 2,598	$ 5,307

Vessels, Net (Table) (Details)

Vessels, Net (Table) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Balance	$ 1,250,043
Additions	(27,986)
Disposals	(44,386)
Balance	1,177,671	$ 1,250,043
Cost
Property, Plant and Equipment [Line Items]
Balance	1,505,013	1,505,013
Additions	0	0
Disposals	(51,739)
Balance	1,453,274	1,505,013
Accumulated Depreciation
Property, Plant and Equipment [Line Items]
Balance	(254,970)	(198,090)
Additions	(27,986)	(56,880)
Disposals	7,353
Balance	(275,603)	(254,970)
Net Book Value
Property, Plant and Equipment [Line Items]
Balance	1,250,043	1,306,923
Additions	(27,986)	(56,880)
Disposals	(44,386)
Balance	$ 1,177,671	$ 1,250,043

Vessels, Net - Disposal of Vess

Vessels, Net - Disposal of Vessels (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2018USD ($)	Mar. 29, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)
Property, Plant and Equipment [Line Items]
Gain on sale of vessel	$ 0		$ 0	$ 25	$ 0
Accrued costs relating to sale of vessel				$ 200	$ 0
Nave Galactic
Property, Plant and Equipment [Line Items]
Vessel type		VLCC
Vessels capacity in DWT		297,168
Sale price		$ 44,500
Gain on sale of vessel		25
Write-off of unamortized dry-docking		465
Write-off of working capital		376
Accrued costs relating to sale of vessel		$ 200

Goodwill - Schedule (Table) (De

Goodwill - Schedule (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Abstract]
Balance	$ 1,579	$ 1,579	$ 1,579

Investment in Affiliates - Bala

Investment in Affiliates - Balance Sheet Data (Table) (Details) - Navios Midstream - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Investments In And Advances To Affiliates [Line Items]
Cash and cash equivalents, including restricted cash	$ 21,731	$ 37,086
Current assets	39,070	62,551
Non-current assets	380,752	393,996
Current liabilities	5,584	4,977
Long- term debt including current portion, net of deferred finance costs and discount	196,173	196,514
Non-current liabilities	$ 195,491	$ 195,839

Investment in Affiliates - Inco

Investment in Affiliates - Income Statement Data (Table) (Details) - Navios Midstream - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Investments In And Advances To Affiliates [Line Items]
Revenue	$ 20,790	$ 18,510	$ 40,569	$ 39,610
Net (loss)/ income	$ 4,286	$ 1,960	$ (25,282)	$ 6,462

Investment in Affiliates - Navi

Investment in Affiliates - Navios Europe I and Navios Europe II (Details) $ in Thousands	2 Months Ended	3 Months Ended		6 Months Ended		7 Months Ended
	Feb. 18, 2015USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2017USD ($)	Dec. 18, 2013USD ($)	Oct. 09, 2013USD ($)
Investments In And Advances To Affiliates [Line Items]
Voting interest				45.00%
Proceeds from loan facility				$ 70,392	$ 49,764
Investment in affiliates		$ 116,136		116,136			$ 125,062
Equity method investment income/ (loss)		4,229	$ (57,728)	$ (59)	(54,960)
Navios Europe I
Investments In And Advances To Affiliates [Line Items]
Ownership percentage									47.50%
Voting interest				50.00%
Number of vessels acquired								10
Estimated maximum potential loss		25,713		$ 25,713			24,147
Investment in affiliates		4,750		4,750			4,750		$ 4,750
Equity method investment income/ (loss)		262	215	514	483
Unamortized difference of investment		3,696		3,696			4,034		$ 6,763
Navios Europe I | Navios Revolving Loans I
Investments In And Advances To Affiliates [Line Items]
Loan portion		15,458		15,458			14,944
Interest Receivable		5,505		$ 5,505			4,453
Navios Europe I | Navios Holdings
Investments In And Advances To Affiliates [Line Items]
Ownership percentage									47.50%
Voting interest				50.00%
Navios Europe I | Navios Maritime Partners L.P.
Investments In And Advances To Affiliates [Line Items]
Ownership percentage									5.00%
Voting interest				0.00%
Navios Europe I | Navios Holdings, Navios Acquisition and Navios Partners | Navios Revolving Loans I
Investments In And Advances To Affiliates [Line Items]
Line of credit facility maximum borrowing capacity								$ 24,100
Navios Europe I | Navios Holdings, Navios Acquisition and Navios Partners | Navios Term Loans I
Investments In And Advances To Affiliates [Line Items]
Loan portion								$ 10,000
Navios Europe II
Investments In And Advances To Affiliates [Line Items]
Ownership percentage	47.50%
Voting interest	50.00%
Number of vessels acquired						14
Estimated maximum potential loss		41,234		$ 41,234			37,741
Investment in affiliates	$ 6,650	6,650		6,650			6,650
Loan portion		25,375		25,375			24,412
Cash consideration						$ 145,550
Equity method investment income/ (loss)		495	$ 168	963	$ 209
Unamortized difference of investment	$ 9,419	6,540		6,540			7,011
Interest Receivable		9,209		9,209			6,679
Navios Europe II | Navios Revolving Loans II
Investments In And Advances To Affiliates [Line Items]
Loan portion		20,662		20,662			$ 20,662
Line of credit facility maximum borrowing capacity		15,003		15,003
Navios Europe II | Junior Loan II
Investments In And Advances To Affiliates [Line Items]
Debt instrument face amount						182,150
Debt instrument fair value						99,147
Navios Europe II | Senior Loans II
Investments In And Advances To Affiliates [Line Items]
Proceeds from loan facility						131,550
Navios Europe II | Navios Holdings
Investments In And Advances To Affiliates [Line Items]
Ownership percentage	47.50%
Voting interest	50.00%
Navios Europe II | Navios Maritime Partners L.P.
Investments In And Advances To Affiliates [Line Items]
Ownership percentage	5.00%
Voting interest	0.00%
Navios Europe II | Navios Holdings, Navios Acquisition and Navios Partners | Navios Revolving Loans II
Investments In And Advances To Affiliates [Line Items]
Line of credit facility maximum borrowing capacity		$ 57,500		$ 57,500		43,500
Navios Europe II | Navios Holdings, Navios Acquisition and Navios Partners | Navios Term Loans II
Investments In And Advances To Affiliates [Line Items]
Loan portion						$ 14,000

Investment in Affiliates - Na48

Investment in Affiliates - Navios Midstream (Details) $ in Thousands	2 Months Ended	3 Months Ended		4 Months Ended	6 Months Ended				9 Months Ended	11 Months Ended
	Feb. 16, 2017USD ($)shares	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	May 05, 2017USD ($)shares	Jun. 30, 2018USD ($)	Jun. 28, 2018	Jun. 18, 2018shares	Jun. 30, 2017USD ($)	Oct. 13, 2014	Nov. 16, 2017shares	Dec. 31, 2017USD ($)
Investments In And Advances To Affiliates [Line Items]
Carrying amount of investment in Navios Midstream		$ 116,136			$ 116,136						$ 125,062
Equity/ (loss) in net earnings of affiliated companies		4,229	$ (57,728)		$ (59)			$ (54,960)
Navios Midstream
Investments In And Advances To Affiliates [Line Items]
General partner interest					2.00%				2.00%
Limited partner interest					57.00%
Carrying amount of investment in Navios Midstream		104,736			$ 104,736						113,662
Loss recognised as a result of the issuance of common units of Navios Midstream		0	(5)		0			(54)
Unamortized difference of investment		24,294			24,294						$ 37,158
Equity/ (loss) in net earnings of affiliated companies		3,472	993		(1,536)			3,452
Aggregate consideration for general partner interests	$ 79			$ 5
Dividends received from affiliates		1,576	$ 5,326		6,902			10,649
General partnership interests | shares	6,446			412
Total market value of the investment		$ 47,272			$ 47,272
Equity/ (loss) in net earnings of affiliated companies								$ 59,104
Navios Midstream | Acquisition Proposal
Investments In And Advances To Affiliates [Line Items]
Stock for units exchange ratio						6,292
Navios Midstream | Subordinated Units
Investments In And Advances To Affiliates [Line Items]
Partners' Capital Account, Units, Converted | shares										9,342,692
Conversion ratio										1
Navios Midstream | Subordinated Series A Units
Investments In And Advances To Affiliates [Line Items]
Partners' Capital Account, Units, Converted | shares							1,592,920
Conversion ratio							1

Dividend Payable (Details)

Dividend Payable (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Dividends paid - aggregate	$ 6,167	$ 15,812
Installemnt 4 - FY 2017
Dividends Payable, Date Declared	Jan. 26, 2018
Dividends per share	$ 0.02
Dividends paid - aggregate	$ 3,102
Dividends Payable, Date to be Paid	Mar. 27, 2018
Dividends paid to common stockholders	$ 2,948
Dividends Payable, Date of Record	Mar. 22, 2018
Installemnt 1 - FY 2018
Dividends Payable, Date Declared	May 4, 2018
Dividends per share	$ 0.02
Dividends paid - aggregate	$ 3,065
Dividends Payable, Date to be Paid	Jun. 27, 2018
Dividends paid to common stockholders	$ 2,911
Dividends Payable, Date of Record	Jun. 21, 2018
Series C Preferred Stock
Preferred stock shares outstanding	1,000		1,000
Navios Holdings | Series C Preferred Stock | Installemnt 4 - FY 2017
Dividends paid to preferred stockholders	$ 154
Navios Holdings | Series C Preferred Stock | Installemnt 1 - FY 2018
Dividends paid to preferred stockholders	$ 154

Accrued Expenses - Schedule (Ta

Accrued Expenses - Schedule (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Accrued Expenses [Abstract]
Accrued voyage expenses	$ 1,119	$ 1,437
Accrued loan interest	9,412	8,910
Accrued legal and professional fees	2,844	1,864
Total accrued expenses	$ 13,375	$ 12,211

Accrued Expenses (Details)

Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Accrued legal and professional fees	$ 2,844	$ 1,864
Legal and professional fees
Accrued legal and professional fees	1,860	$ 1,675
General and administrative expenses
Cash award, authorized amount	$ 1,805		$ 1,000

Borrowings - Schedule (Table) (

Borrowings - Schedule (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Total credit facilities	$ 964,217	$ 1,077,687
Total borrowings	1,035,717	1,077,687
Less: Deferred finance costs, net	(13,350)	(13,470)
Add: bond premium	1,024	1,152
Less: current portion of credit facilities, net of deferred finance costs	(43,260)	(36,410)
Less: current portion of CMB Financial Leasing Co., net of deferred finance costs	(5,543)	0
Total long-term borrowings, net of current portion, bond premium and deferred finance costs	974,588	1,028,959
Ship Mortgage Notes $670,000
Debt Instrument [Line Items]
Total credit facilities	670,000	670,000
Commerzbank AG, Alpha Bank AE, Credit Agricole Corporate and Investment Bank
Debt Instrument [Line Items]
Total credit facilities	0	71,500
BNP Paribas S.A. and DVB Bank S.E.
Debt Instrument [Line Items]
Total credit facilities	54,000	56,250
Eurobank Ergasias S.A. $52,200
Debt Instrument [Line Items]
Total credit facilities	34,205	35,569
Eurobank Ergasias S.A. $52,000
Debt Instrument [Line Items]
Total credit facilities	32,430	33,654
Norddeutsche Landesbank Girozentrale
Debt Instrument [Line Items]
Total credit facilities	23,047	23,828
DVB Bank S.E. and Credit Agricole Corporate and Investment Bank
Debt Instrument [Line Items]
Total credit facilities	44,141	45,703
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB
Debt Instrument [Line Items]
Total credit facilities	50,682	82,327
HSH Nordbank AG $40,300
Debt Instrument [Line Items]
Total borrowings	21,712
BNP Paribas $44,000
Debt Instrument [Line Items]
Total credit facilities	34,000	36,000
$24000
Debt Instrument [Line Items]
Total credit facilities	21,712	22,856
CMB Financial Leasing Co.
Debt Instrument [Line Items]
Total borrowings	$ 71,500	$ 0

Borrowings - Long-Term Debt Obl

Borrowings - Long-Term Debt Obligations (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Long-Term Debt Obligations:
June 30, 2019	$ 50,282
June 30, 2020	92,031
June 30, 2021	79,805
June 30, 2022	733,118
June 30, 2023	38,771
June 30, 2024 and thereafter	41,710
Total	$ 1,035,717	$ 1,077,687

Borrowings (Details)

Borrowings (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended	4 Months Ended	6 Months Ended
	Jan. 27, 2017	Feb. 28, 2017	Mar. 23, 2018	Apr. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Debt Instrument [Line Items]
Amount drawn down					$ 70,392	$ 49,764
Outstanding Amount					1,035,717		$ 1,077,687
Amount outstanding					$ 964,217		1,077,687
Ship Mortgage Notes $670,000
Debt Instrument [Line Items]
Redemption price percentage					106.094%
Amount outstanding					$ 670,000		670,000
Existing 2021 Notes
Debt Instrument [Line Items]
Debt Instrument Issuance Date					Nov. 13, 2013
Debt instrument face amount					$ 610,000
Fixed rate					8.125%
Maturity date					Nov. 15, 2021
Additional 2021 Notes
Debt Instrument [Line Items]
Debt Instrument Issuance Date					Nov. 13, 2013
Debt instrument face amount					$ 60,000
Debt instrument, Original issue price percentage					103.25%
Redemption upon the occurence of certain change of control events | Ship Mortgage Notes $670,000
Debt Instrument [Line Items]
Redemption price percentage					101.00%
Subsidiaries
Debt Instrument [Line Items]
Ownreship percentage					100.00%
Credit Facilities
Debt Instrument [Line Items]
Repayment frequency					semi-annual or quarterly
Interest rate description					LIBOR plus spread
Other long-term debt					$ 365,717
Maturity Date Range, Start					Jun. 30, 2019
Maturity Date Range, End					Apr. 30, 2024
Credit Facilities | Minimum
Debt Instrument [Line Items]
Loan margin percentage					2.30%
Credit Facilities | Maximum
Debt Instrument [Line Items]
Loan margin percentage					3.05%
Commerzbank AG, Alpha Bank AE, Credit Agricole Corporate and Investment Bank
Debt Instrument [Line Items]
Line of credit facility issuance date					Apr. 7, 2010
Line of credit facility maximum borrowing capacity					$ 150,000
Number of loan tranches					6
Amount of each tranche					$ 25,000
Repayment installments					12
Repayment frequency					semi-annual
Repayment amount					$ 750
Balloon payment on the last repayment date					$ 16,000
Interest rate description					LIBOR plus 250 bps
Loan margin percentage					2.50%
Repayments of Lines of Credit	$ 16,000			$ 69,250
Amount outstanding					$ 0		71,500
Debt write off					19
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB | Four Tranches | Minimum
Debt Instrument [Line Items]
Repayment amount					435
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB | Four Tranches | Maximum
Debt Instrument [Line Items]
Repayment amount					$ 1,896
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB | Fifth Tranche
Debt Instrument [Line Items]
Repayment installments					16
Repayment frequency					quarterly
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB | Fifth Tranche | Minimum
Debt Instrument [Line Items]
Repayment amount					$ 709
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB | Fifth Tranche | Maximum
Debt Instrument [Line Items]
Repayment amount					$ 803
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB
Debt Instrument [Line Items]
Line of credit facility issuance date					Nov. 30, 2015
Line of credit facility maximum borrowing capacity					$ 125,000
Number of loan tranches					5
Line of credit facility maturity date					Dec. 31, 2020
Interest rate description					LIBOR plus 295 bps
Loan margin percentage					2.95%
Amount outstanding					$ 50,682		$ 82,327
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB | Nave Equinox and Nave Pyxis
Debt Instrument [Line Items]
Deferred charges written-off			$ 297
Early repayment of debt			$ 26,770
Deutsche Bank AG Filiale Deutschlandgeschaft and Skandinaviska Enskilda Banken AB | Four Tranches
Debt Instrument [Line Items]
Number of loan tranches					4
Repayment installments					20
Repayment frequency					quarterly
Leasing company
Debt Instrument [Line Items]
Line of credit facility issuance date					Mar. 31, 2018
Line of credit facility maximum borrowing capacity					$ 71,500
Amount drawn down				$ 71,500
Outstanding Amount					$ 71,500
Repayment installments					24
Repayment frequency					quarterly
Repayment amount					$ 1,490
Balloon payment on the last repayment date					$ 35,750
Line of credit facility maturity date					Apr. 30, 2024
Interest rate description					LIBOR plus 305 bps
Loan margin percentage					3.05%
ABN AMRO Bank N.V.
Debt Instrument [Line Items]
Line of credit facility issuance date					Feb. 28, 2017
Amount drawn down		$ 26,650
Deferred charges written-off					$ 697
Line of credit facility maturity date					Feb. 28, 2018
Interest rate description					LIBOR plus 400 bps
Loan margin percentage					4.00%
Early repayment of debt					$ 26,000
HSH Nordbank AG
Debt Instrument [Line Items]
Line of credit facility issuance date					Jun. 30, 2017
Line of credit facility maximum borrowing capacity					$ 24,000
Outstanding Amount					$ 21,712
Repayment installments					17
Repayment frequency					quarterly
Repayment amount					$ 572
Line of credit facility maturity date					Sep. 30, 2021
Interest rate description					LIBOR plus 300 bps
Loan margin percentage					3.00%

Borrowings - Additional Informa

Borrowings - Additional Information (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Debt Instrument [Line Items]
Credit Facilities, Covenants compliance	As of June 30, 2018, the Company was in compliance with its covenants.
Credit Facilities, Collateral	Amounts drawn under the facilities are secured by first preferred mortgages on Navios Acquisition’s vessels and other collateral and are guaranteed by each vessel-owning subsidiary.
Restrictive covenants	The credit facilities contain a number of restrictive covenants that prohibit or limit Navios Acquisition from, among other things: incurring or guaranteeing indebtedness; entering into affiliate transactions; changing the flag, class, management or ownership of Navios Acquisition’s vessels; changing the commercial and technical management of Navios Acquisition’s vessels; selling Navios Acquisition’s vessels; and subordinating the obligations under each credit facility to any general and administrative costs relating to the vessels, including the fixed daily fee payable under the management agreement. The credit facilities also require Navios Acquisition to comply with the ISM Code and ISPS Code and to maintain valid safety management certificates and documents of compliance at all times.
Minimum
Debt Instrument [Line Items]
Minimum net worth required for compliance	$ 50,000
Minimum liquidity required for compliance	40,000
Minimum | Liquidity per vessel
Debt Instrument [Line Items]
Minimum liquidity required for compliance	1,000
Maximum
Debt Instrument [Line Items]
Minimum net worth required for compliance	$ 135,000
Leasing company | Minimum
Debt Instrument [Line Items]
Total Liabilities to Total Assets ratio	75.00%
Leasing company | Minimum | Amendement of leasback agreement
Debt Instrument [Line Items]
Total Liabilities to Total Assets ratio	80.00%
Leasing company | Maximum
Debt Instrument [Line Items]
Total Liabilities to Total Assets ratio	80.00%
Leasing company | Maximum | Amendement of leasback agreement
Debt Instrument [Line Items]
Total Liabilities to Total Assets ratio	85.00%
Ship Mortgage Notes $670,000
Debt Instrument [Line Items]
Restrictive covenants	The 2021 Notes contain covenants which, among other things, limit the incurrence of additional indebtedness, issuance of certain preferred stock, the payment of dividends, redemption or repurchase of capital stock or making restricted payments and investments, creation of certain liens, transfer or sale of assets, entering in transactions with affiliates, merging or consolidating or selling all or substantially all of the 2021 Co-Issuers’ properties and assets and creation or designation of restricted subsidiaries.
Covenant compliance	The 2021 Co-Issuers were in compliance with the covenants as of June 30, 2018.

Fair Value of Financial Instr56

Fair Value of Financial Instruments - Schedule (Table) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value of Financial Instruments [Abstract]
Cash and cash equivalents - Book Value	$ 49,466	$ 81,151
Cash and cash equivalents - Fair Value	49,466	81,151
Restricted cash - Book Value	2,598	5,307
Restricted cash - Fair Value	2,598	5,307
Ship mortgage notes and premium - Book Value	662,402	661,463
Ship mortgage notes and premium - Fair Value	548,274	572,214
Other long-term debt, net of deferred finance cost - Book Value	365,717	403,906
Other long-term debt, net of deferred finance cost - Fair Value	365,717	407,687
Due from related parties, long-term - Book Value	54,218	54,593
Due from related parties, long-term - Fair Value	$ 54,218	$ 54,593

Fair Value of Financial Instr57

Fair Value of Financial Instruments - Non-Recurring Measurements (Table) (Details) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents		$ 49,466	$ 81,151
Restricted cash		2,598	5,307
Ship mortgage notes and premium		548,274	572,214
Other long-term debt		365,717	407,687
Due from related parties, long-term		54,218	54,593
Carrying amount of investment in Navios Midstream		116,136	125,062
Navios Midstream
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investment in affiliates		47,272
Carrying amount of investment in Navios Midstream		104,736	113,662
Quoted Prices in Active Markets for Identical Assets (Level I)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash and cash equivalents		49,466	81,151
Restricted cash		2,598	5,307
Ship mortgage notes and premium		548,274	572,214
Investment in affiliates		47,272
Significant Other Observable Inputs (Level II)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Other long-term debt	[1]	365,717	407,687
Due from related parties, long-term	[2]	$ 54,218	$ 54,593
[1]	The fair value of the Company’s other long-term debt is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the Company’s creditworthiness.
[2]	The fair value of the Company’s long term amounts due from related parties is estimated based on currently available debt with similar contract terms, interest rate and remaining maturities as well as taking into account the counterparty’s creditworthiness.

Fair Value of Financial Instr58

Fair Value of Financial Instruments - Recurring Measurements (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments In Affiliates Subsidiaries Associates And Joint Ventures	$ 116,136	$ 125,062
Share Price	$ 1.18
Navios Midstream
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments In Affiliates Subsidiaries Associates And Joint Ventures	$ 104,736	$ 113,662
Quoted Prices in Active Markets for Identical Assets (Level I) | Navios Midstream | Common Units
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Share Price	$ 3.75
Quoted Prices in Active Markets for Identical Assets (Level I) | Navios Midstream | Common Units | Minimum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Share Price	3.29
Quoted Prices in Active Markets for Identical Assets (Level I) | Navios Midstream | Common Units | Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Share Price	$ 10.32

Transactions with Related Par59

Transactions with Related Parties (Details)	2 Months Ended	3 Months Ended			4 Months Ended	5 Months Ended		6 Months Ended		7 Months Ended	9 Months Ended	10 Months Ended
	Feb. 16, 2017USD ($)shares	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Jun. 30, 2017USD ($)	May 05, 2017USD ($)shares	May 29, 2018USD ($)	May 18, 2014USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jul. 29, 2016USD ($)	Oct. 13, 2014	Nov. 03, 2017USD ($)	Dec. 31, 2017USD ($)	Nov. 18, 2016	Oct. 25, 2016	Jun. 30, 2015
Related Party Transaction [Line Items]
Navios Holdings' interest in Navios South American Logistics Inc.		48.30%						48.30%
Due from related parties, long-term		$ 54,218,000						$ 54,218,000					$ 54,593,000
Management fees		22,913,000		$ 23,678,000				46,312,000	$ 47,096,000
General and administrative expenses		4,892,000		3,693,000				8,055,000	6,456,000
Due to related parties, short-term		10,064,000						10,064,000					17,107,000
Deferred Gain On Sale Of Property		6,356,000						6,356,000					6,729,000
Deferred revenue		5,833,000						5,833,000					5,028,000
Time charter and voyage expenses		6,363,000		5,585,000				12,189,000	8,763,000
Options Vessels
Related Party Transaction [Line Items]
Number of vessels														7
Options exercised
Related Party Transaction [Line Items]
Number of vessels																2
Options held
Related Party Transaction [Line Items]
Number of vessels														5
Options extended
Related Party Transaction [Line Items]
Number of vessels															3
$70,000 secured loan facility with Navios Holdings
Related Party Transaction [Line Items]
Line of credit facility maximum borrowing capacity		70,000,000						70,000,000
Arrangement fee		700,000						700,000
Payments to Fund Long-term Loans to Related Parties												$ 50,000,000
Interest income from related party		$ 0		1,206,000				$ 0	2,398,000
Interest rate percentage								8.75%
Navios Holdings' interest in Navios South American Logistics Inc.		78.50%						78.50%
Due from related parties, long-term		$ 0						$ 0					0
Line of credit facility issuance date								Sep. 19, 2016
Line of credit facility maturity date								Nov. 15, 2018
Loan repayment												55,132,000
Accrued interest income												$ 5,132,000
Amendment of Management Agreement
Related Party Transaction [Line Items]
Maturity date of agreement								May 30, 2020
Administrative services agreement with the Manager
Related Party Transaction [Line Items]
General and administrative expenses		2,188,000		2,250,000				$ 4,435,000	4,500,000
MR2 Product Tanker Vessel | Amendment of Management Agreement
Related Party Transaction [Line Items]
Daily management fee to Navios Holdings						$ 6,500
Duration of agreement						2 years
MR2 Product Tanker Vessel | Extended Management Agreement
Related Party Transaction [Line Items]
Daily management fee to Navios Holdings							$ 6,350
MR2 Chemical Tanker Vessel | Amendment of Management Agreement
Related Party Transaction [Line Items]
Daily management fee to Navios Holdings						$ 6,500
Duration of agreement						2 years
MR2 Chemical Tanker Vessel | Extended Management Agreement
Related Party Transaction [Line Items]
Daily management fee to Navios Holdings							6,350
LR1 Product Tanker Vessel | Amendment of Management Agreement
Related Party Transaction [Line Items]
Daily management fee to Navios Holdings						$ 7,150
Duration of agreement						2 years
LR1 Product Tanker Vessel | Extended Management Agreement
Related Party Transaction [Line Items]
Daily management fee to Navios Holdings							7,150
VLCC | Amendment of Management Agreement
Related Party Transaction [Line Items]
Daily management fee to Navios Holdings						$ 9,500
Duration of agreement						2 years
VLCC | Extended Management Agreement
Related Party Transaction [Line Items]
Daily management fee to Navios Holdings							$ 9,500
Nave Celeste
Related Party Transaction [Line Items]
Duration of agreement								2 years
Charter hire daily rate								$ 35,000
Shinyo Ocean
Related Party Transaction [Line Items]
Duration of agreement								2 years
Charter hire daily rate								$ 38,400
Shinyo Kannika
Related Party Transaction [Line Items]
Duration of agreement								2 years
Charter hire daily rate								$ 38,000
Navios Midstream
Related Party Transaction [Line Items]
Loss recognised as a result of the issuance of common units of Navios Midstream		0		(5,000)				$ 0	(54,000)
Backstop Agreement with Navios Midstream								On November 18, 2014, Navios Acquisition entered into backstop agreements with Navios Midstream. In accordance with the terms of the backstop agreements, Navios Acquisition has provided backstop commitments for a two-year period as of the redelivery of each of the Nave Celeste, the Shinyo Ocean and the Shinyo Kannika from their original charters, at a net rate of $35, $38.4 and $38, respectively.
General partnership interests | shares	6,446				412
General partner interest								2.00%			2.00%
Maximum Aggregate Offering Price For Issuance Of Limited Partner Interests										$ 25,000,000
Deferred Gain On Sale Of Property		7,218,000						$ 7,218,000					7,708,000
Deferred revenue		862,000						862,000					979,000
Deferred gain recognized		245,000		253,000				489,000	626,000
Aggregate consideration for general partner interests	$ 79,000				$ 5,000
Time charter and voyage expenses		5,714,000		$ 4,075,000				10,581,000	$ 5,231,000
Payments due to backstop agreement			$ 16,391,000
Navios Holdings and Navios Midstream
Related Party Transaction [Line Items]
Due from related parties		$ 13,385,000						$ 13,385,000					$ 18,036,000

Transactions with Related Par60

Transactions with Related Parties - Navios Europe I and Navios Europe II (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2017	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2015	Dec. 18, 2013
Navios Europe I
Related Party Transaction [Line Items]
Due from related parties		$ 20,963	$ 19,397
Navios Europe I | Navios Holdings, Navios Acquisition and Navios Partners
Related Party Transaction [Line Items]
Preferred distribution percentage		12.70%
Navios Europe II
Related Party Transaction [Line Items]
Due from related parties		$ 34,584	31,091
Loan portion		$ 25,375	24,412
Navios Europe II | Navios Holdings, Navios Acquisition and Navios Partners
Related Party Transaction [Line Items]
Preferred distribution percentage		18.00%
Navios Revolving Loans I | Navios Europe I
Related Party Transaction [Line Items]
Loan portion		$ 11,770	11,770
Loan portion		15,458	14,944
Accrued interest on loan to affiliate, current		5,505	4,453
Navios Revolving Loans I | Navios Europe I | Navios Holdings, Navios Acquisition and Navios Partners
Related Party Transaction [Line Items]
Revolving loan facilitiy maximum borrowing capacity					$ 24,100
Navios Revolving Loans II | Navios Europe II
Related Party Transaction [Line Items]
Loan portion		20,662	20,662
Accrued interest on loan to affiliate, non-current		9,209	6,679
Revolving loan facilitiy maximum borrowing capacity		15,003
Navios Revolving Loans II | Navios Europe II | Minimum
Related Party Transaction [Line Items]
Amount commited to fund		0
Navios Revolving Loans II | Navios Europe II | Maximum
Related Party Transaction [Line Items]
Amount commited to fund		15,003
Navios Revolving Loans II | Navios Europe II | Navios Holdings, Navios Acquisition and Navios Partners
Related Party Transaction [Line Items]
Increase in availability under the Navios Revolving Loans II	$ 14,000
Revolving loan facilitiy maximum borrowing capacity		57,500		$ 43,500
Navios Term Loans I | Navios Europe I
Related Party Transaction [Line Items]
Accrued interest on loan to affiliate, non-current		3,688	3,174
Navios Term Loans I | Navios Europe I | Navios Holdings, Navios Acquisition and Navios Partners
Related Party Transaction [Line Items]
Loan portion					$ 10,000
Navios Term Loans II | Navios Europe II
Related Party Transaction [Line Items]
Accrued interest on loan to affiliate, non-current		$ 4,713	$ 3,750
Navios Term Loans II | Navios Europe II | Navios Holdings, Navios Acquisition and Navios Partners
Related Party Transaction [Line Items]
Loan portion				$ 14,000

Commitments and Contingencies (

Commitments and Contingencies (Details)	6 Months Ended
	Jun. 30, 2018USD ($)
Nave Celeste
Other Commitments [Line Items]
Duration of agreement	2 years
Charter hire daily rate	$ 35,000
Shinyo Ocean
Other Commitments [Line Items]
Duration of agreement	2 years
Charter hire daily rate	$ 38,400
Shinyo Kannika
Other Commitments [Line Items]
Duration of agreement	2 years
Charter hire daily rate	$ 38,000

Preferred and Common Stock (Det

Preferred and Common Stock (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	2 Months Ended	3 Months Ended			4 Months Ended	6 Months Ended		7 Months Ended	9 Months Ended	10 Months Ended	12 Months Ended
	Jan. 17, 2017	Feb. 28, 2018	Jun. 30, 2018	Jun. 30, 2017	Mar. 30, 2011	May 08, 2017	Jun. 30, 2018	Jun. 30, 2017	Aug. 08, 2017	Oct. 02, 2017	Oct. 31, 2013	Dec. 31, 2017
Preferred Stock
Preferred stock shares authorized			10,000,000				10,000,000					10,000,000
Preferred stock - par value			$ 0.0001				$ 0.0001					$ 0.0001
Share Based Compensation
Stock based compensation							$ 541	$ 0
Common Stock
Common stock shares authorized			250,000,000				250,000,000					250,000,000
Common stock - par value			$ 0.0001				$ 0.0001					$ 0.0001
Amount paid upon redemption							$ 0	$ 1,750
Acquisition of treasury stock, cost							$ 5,556
Common stock shares issued			145,244,205				145,244,205					152,107,905
Common stock shares outstanding			145,244,205				145,244,205					152,107,905
Common Stock
Shares redeemed								175,000
Common Stock
Acquisition of treasury stock, shares							6,863,700
Acquisition of treasury stock, cost							$ 1
Common Stock | Share Repurchase Program
Share Based Compensation
Stock options - expiration term		2 years
Common Stock
Stock repurchase program, Authorized amount		$ 25,000
Acquisition of treasury stock, shares							6,863,700
Cancellation of shares							6,863,700
Acquisition of treasury stock, cost							$ 5,556
Common Stock | Exchange Agreement, Navios Holdings
Conversion of Stock, Shares converted					7,676,000
Series C Convertible Preferred Stock
Preferred Stock
Preferred stock shares issued			1,000				1,000					1,000
Preferred stock shares outstanding			1,000				1,000					1,000
Puttable Common Stock
Shares redeemed	100,000					75,000			50,000	25,000
Common Stock
Amount paid upon redemption	$ 1,000					$ 750			$ 500	$ 250
Restricted Stock
Share Based Compensation
Stock options - exercise price			$ 1.18				$ 1.18
Restricted stock grant date fair value, total amount			$ 2,094				$ 2,094
Restricted stock exercised							0
Restricted stock forfeited							0
Restricted stock expired							0
Restricted Stock | Directors and/or officers
Share Based Compensation
Stock based compensation - restricted shares issued												1,774,915
Stock options - exercise price			$ 1.18				$ 1.18
Vesting period							4 years
Stock based compensation			$ 272	$ 0			$ 541	$ 0
Compensation cost relating to service conditions of non-vested restricted stock			$ 1,497				$ 1,497
Restricted stock weighted average period of recognition							3 years 6 months
Restricted shares non-vested			1,774,915				1,774,915
Employee Stock Option
Share Based Compensation
Stock based compensation - stock option issued											1,500,000
Vesting period											3 years
Stock options weighted average period of recognition							5 years 2 months 16 days

Segment Information - Revenue b

Segment Information - Revenue by Geographic Region (Table) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Total Revenue	$ 41,479	$ 58,458	$ 87,629	$ 122,940
Asia
Total Revenue	24,027	34,722	52,791	72,754
Europe
Total Revenue	7,450	10,536	14,701	22,502
United States
Total Revenue	$ 10,002	$ 13,200	$ 20,137	$ 27,684

Earnings_ (Loss) per Common S64

Earnings/ (Loss) per Common Share - Calculation per Share (Table) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator:
Net loss	$ (22,068)	$ (64,417)	$ (46,534)	$ (58,802)
Less:
Dividend declared on restricted shares	(35)	0	(71)	0
Undistributed loss attributable to Series C participating preferred shares	1,117	3,127	2,321	2,855
Net loss attributable to common stockholders, basic	(20,986)	(61,290)	(44,284)	(55,947)
Plus:
Dividend declared on restricted shares	0	0	0	0
Net loss income attributable to common stockholders, diluted	$ (20,986)	$ (61,290)	$ (44,284)	$ (55,947)
Denominator:
Denominator for basic net loss per share - weighted average shares	144,228,909	150,436,836	146,378,370	150,468,625
Series A preferred stock	0	0	0	0
Restricted shares	0	0	0	0
Denominator for diluted net loss per share - adjusted weighted average shares	144,228,909	150,436,836	146,378,370	150,468,625
Net loss per share, basic and diluted	$ (0.15)	$ (0.41)	$ (0.30)	$ (0.37)

Earnings_ (Loss) per Common S65

Earnings/ (Loss) per Common Share (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Earnings/ (Loss) per Common Share [Abstract]
Potential common shares	10,950,915	9,176,000	10,950,915	9,176,000

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Taxes [Abstract]
Greek Tonnage tax	$ 274	$ 68	$ 772	$ 480

Subsequent Events (Details)

Subsequent Events (Details) - Subsequent Event - USD ($)	7 Months Ended	8 Months Ended
	Jul. 31, 2018	Aug. 23, 2018
Two newbuild Japanese VLCCs
Subsequent Event [Line Items]
Bareboat charter-in implied price		$ 84,500,000
Annual effective interest rate		6.00%
Charter hire duration		12 years
Two newbuild Japanese VLCCs | Main period
Subsequent Event [Line Items]
Charter hire daily rate		$ 27,800
Charter hire duration		10 years
Two newbuild Japanese VLCCs | Optional period
Subsequent Event [Line Items]
Charter hire daily rate		$ 29,800
Charter hire duration		5 years
Installemnt 2 - FY 2018
Subsequent Event [Line Items]
Dividends Payable, Date Declared	Jul. 31, 2018
Dividends per share	$ 0.02
Dividends Payable, Date of Payment	Sep. 27, 2018
Dividends Payable, Date of Record	Sep. 20, 2018