Investments in affiliates and investments in available-for-sale securities (Details) - USD ($)
$ / shares in Units, $ in Thousands |
2 Months Ended |
3 Months Ended |
9 Months Ended |
10 Months Ended |
11 Months Ended |
12 Months Ended |
|
Feb. 21, 2018 |
Mar. 31, 2018 |
Mar. 31, 2017 |
Mar. 20, 2017 |
Mar. 17, 2017 |
Sep. 30, 2017 |
Nov. 09, 2018 |
Dec. 06, 2018 |
Dec. 31, 2018 |
Dec. 21, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Feb. 28, 2018 |
| Schedule Of Equity Method Investments [Line Items] |
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| Investments in affiliates |
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$ 91,111
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$ 183,160
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$ 160,071
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| Other than temporary impairment loss on investments |
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55,524
|
|
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| Equity in net earnings of affiliated companies |
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(80,205)
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4,399
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(202,779)
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| Dividends received |
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$ 5,838
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|
7,298
|
0
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| Stockholders' equity, Reverse stock split |
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one-for-ten reverse stock split
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| Navios Partners |
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| Schedule Of Equity Method Investments [Line Items] |
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| General partner interest of Navios Holdings |
2.00%
|
2.00%
|
2.00%
|
2.00%
|
2.00%
|
2.00%
|
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|
2.00%
|
|
|
|
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| Number of shares issued-common stock |
18,422,000
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47,795,000
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| Price per common unit |
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$ 2.1
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| Private placement of units to directors and/or officers |
|
1,370,044
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2,040,000
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1,464,494
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| Common Units issued in public offering |
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1,200,442
|
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| Partners capital account units acquisitions |
5,000
|
27,960
|
66,131
|
975,408
|
266,876
|
7,376
|
|
|
29,888
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|
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| Payments to acquire investment |
$ 714
|
$ 64
|
$ 110
|
$ 2,048
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$ 468
|
$ 12
|
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$ 27
|
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| Equity in net earnings of affiliated companies |
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$ 1,828
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1,892
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1,833
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| Navios Revolving Loans I Transfer | Navios Partners |
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| Schedule Of Equity Method Investments [Line Items] |
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| Number of shares issued-common stock |
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13,076,923
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| Long-term liability recognized |
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$ 33,473
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| Proceeds from transfer of debt |
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4,050
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| Consideration equity component |
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$ 29,423
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| Navios Acquisition |
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| Schedule Of Equity Method Investments [Line Items] |
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| Stockholders' equity, Reverse stock split |
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one-for-15 reverse stock spilt
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| Navios Partners |
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| Schedule Of Equity Method Investments [Line Items] |
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| General partner interest of Navios Holdings |
|
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2.00%
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| Common units held by Navios Holdings |
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31,053,233
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| General Partner units held by Navios Holdings |
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3,450,091
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| Ownership percentage of Navios Holdings |
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20.00%
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| Difference between carrying amount of investment and underlying equity in net assets of equity method investee |
|
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$ 80,484
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|
98,608
|
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| Investments in affiliates |
|
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29,328
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|
66,773
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| Other than temporary impairment loss on investments |
|
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55,524
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|
0
|
83,596
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| Equity in net earnings of affiliated companies |
|
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16,171
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12,570
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(5,979)
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| Dividends received |
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2,068
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|
0
|
0
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| Market value of the investment |
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$ 29,328
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| Acropolis |
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| Schedule Of Equity Method Investments [Line Items] |
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| Ownership percentage of Navios Holdings |
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35.00%
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| Cash consideration from sale of investments |
|
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$ 1,000
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| Gain on sale of investments |
|
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$ 866
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| Procceds from sale of investments |
|
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$ 500
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| Investments in affiliates |
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$ 0
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|
228
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| Ownership Interest |
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50.00%
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| Profit Sharing Arrangement |
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Navios Holdings, until the sale of its investment, had a 50% interest in Acropolis, a brokerage firm for freight and shipping charters. Although Navios Holdings owned 50% of Acropolis’ stock, Navios Holdings agreed with the other shareholder that the earnings and amounts declared by way of dividends would be allocated 35% to the Company with the balance to the other shareholder.
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| Dividends received |
|
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$ 170
|
|
55
|
85
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| Navios Acquisition |
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| Schedule Of Equity Method Investments [Line Items] |
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| Ownership percentage of Navios Holdings |
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35.80%
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| Difference between carrying amount of investment and underlying equity in net assets of equity method investee |
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$ 87,500
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113,597
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| Investments in affiliates |
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$ 50,374
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|
99,590
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| Percentage of voting stock of Navios Holdings in Navios Acquisition |
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32.80%
|
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| Other than temporary impairment loss on investments |
|
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|
|
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|
|
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|
144,430
|
|
| Equity in net earnings of affiliated companies |
|
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|
|
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|
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$ (43,378)
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(9,875)
|
29,801
|
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| Dividends received |
|
|
|
|
|
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5,838
|
|
$ 14,595
|
$ 14,595
|
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| Market value of the investment |
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$ 15,812
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| Share Repurchase Program | Navios Acquisition |
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| Schedule Of Equity Method Investments [Line Items] |
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| Share repurchase program, Authorized amount |
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$ 25,000
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| Share repurchase program, Period in force |
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2 years
|
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| Number of shares repurchased |
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670,962
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