Description of Organization and Business Operations	6 Months Ended
Jun. 30, 2019
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 world-wide 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 contracts. 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 Navios Tankers Management Inc. (the “Manager”). Navios Acquisition was incorporated in the Republic of the 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 acquisition 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 units in the United States and was listed on the NYSE under the symbol “NAP”. (Refer to Note 7, “Investment in affiliates”). Navios Midstream was a publicly traded master limited partnership, through December 13, 2018, which owned, operated and acquired crude oil tankers, refined petroleum product tankers, chemical tankers and liquefied petroleum gas tankers under long-term employment contracts. On December 13, 2018, the Company completed the merger (the “Merger”) contemplated by the previously announced Agreement and Plan of Merger, (the “Merger Agreement”), dated as of October 7, 2018, by and among Navios Acquisition, its direct wholly-owned subsidiary NMA Sub LLC (“Merger Sub”), Navios Midstream and Navios Midstream Partners GP LLC (the “NAP General Partner”). Pursuant to the Merger Agreement, Merger Sub merged with and into Navios Midstream, with Navios Midstream surviving as a wholly-owned subsidiary of Navios Acquisition. Under the terms of the transaction, Navios Acquisition acquired all of the outstanding publicly held common units of Navios Midstream though the issuance of 3,683,284 newly issued shares of Navios Acquisition common stock in exchange for the publicly held common units of Navios Midstream at an exchange ratio of 0.42 shares of Navios Acquisition for each Navios Midstream common unit. Following the Merger the results of operations of Navios Midstream are consolidated under Navios Acquisition. As of June 30, 2019 and December 31, 2018, Navios Acquisition owned a 100% limited partner interest in Navios Midstream. As of June 30, 2019, Navios Maritime Holdings Inc. (“Navios Holdings”) had 35.4% of the voting power and 36.0% of the economic interest in Navios Acquisition. As of June 30, 2019, Navios Acquisition had 13,728,371 shares of common stock outstanding.

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 world-wide 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 contracts. 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 Navios Tankers Management Inc. (the “Manager”).

Navios Acquisition was incorporated in the Republic of the 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 acquisition 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 units in the United States and was listed on the NYSE under the symbol “NAP”. (Refer to Note 7, “Investment in affiliates”). Navios Midstream was a publicly traded master limited partnership, through December 13, 2018, which owned, operated and acquired crude oil tankers, refined petroleum product tankers, chemical tankers and liquefied petroleum gas tankers under long-term employment contracts.

On December 13, 2018, the Company completed the merger (the “Merger”) contemplated by the previously announced Agreement and Plan of Merger, (the “Merger Agreement”), dated as of October 7, 2018, by and among Navios Acquisition, its direct wholly-owned subsidiary NMA Sub LLC (“Merger Sub”), Navios Midstream and Navios Midstream Partners GP LLC (the “NAP General Partner”). Pursuant to the Merger Agreement, Merger Sub merged with and into Navios Midstream, with Navios Midstream surviving as a wholly-owned subsidiary of Navios Acquisition.

Under the terms of the transaction, Navios Acquisition acquired all of the outstanding publicly held common units of Navios Midstream though the issuance of 3,683,284 newly issued shares of Navios Acquisition common stock in exchange for the publicly held common units of Navios Midstream at an exchange ratio of 0.42 shares of Navios Acquisition for each Navios Midstream common unit. Following the Merger the results of operations of Navios Midstream are consolidated under Navios Acquisition.

As of June 30, 2019 and December 31, 2018, Navios Acquisition owned a 100% limited partner interest in Navios Midstream.

As of June 30, 2019, Navios Maritime Holdings Inc. (“Navios Holdings”) had 35.4% of the voting power and 36.0% of the economic interest in Navios Acquisition.

As of June 30, 2019, Navios Acquisition had 13,728,371 shares of common stock outstanding.