Subsequent Events (Details)
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1 Months Ended |
2 Months Ended |
3 Months Ended |
5 Months Ended |
9 Months Ended |
12 Months Ended |
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Jan. 31, 2018
USD ($)
|
Mar. 13, 2018
USD ($)
$ / shares
shares
|
Feb. 28, 2018
USD ($)
|
Feb. 21, 2018
USD ($)
$ / shares
shares
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Mar. 31, 2018
USD ($)
|
Mar. 31, 2017
USD ($)
shares
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Mar. 20, 2017
USD ($)
shares
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Jun. 08, 2017
USD ($)
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Sep. 30, 2017
USD ($)
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Dec. 31, 2017
USD ($)
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Dec. 31, 2016
USD ($)
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Dec. 31, 2015
USD ($)
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| Subsequent Event [Line Items] |
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| Cash consideration for purchase of vessel |
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$ 0
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$ 60,115,000
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$ 0
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| Payments to acquire common stock |
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|
|
|
|
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|
$ 7,638,000
|
$ 0
|
$ 22,846,000
|
| Navios Partners |
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| Subsequent Event [Line Items] |
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| Number of shares issued-common stock | shares |
|
|
|
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47,795,000
|
|
|
|
|
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| Payments to acquire investment |
|
|
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|
$ 110,000
|
$ 2,048,000
|
|
$ 12,000
|
|
|
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| General partner interest of Navios Holdings |
|
|
|
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|
2.00%
|
2.00%
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|
2.00%
|
|
|
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| Private placement of units to Navios Holdings | shares |
|
|
|
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|
2,040,000
|
|
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| Navios Containers |
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| Subsequent Event [Line Items] |
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| Ownership percentage of Navios Holdings |
|
|
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3.40%
|
|
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| Investments on the equity |
|
|
|
|
|
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|
$ 5,000,000
|
|
|
|
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| Navios Containers | Warrants |
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| Subsequent Event [Line Items] |
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| Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners |
|
|
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1.70%
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| Fair Value Assumptions, Expected Term |
|
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|
5 years
|
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| Subsequent event | Newbuilding bulk carriers |
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| Subsequent Event [Line Items] |
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| Number of vessels |
2
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| Lease term |
10 years
|
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| Contractual Obligation |
$ 11,140,000
|
|
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| Cash consideration for purchase of vessel |
$ 5,570,000
|
|
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| Subsequent event | First newbuilding bulk carrier |
|
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| Subsequent Event [Line Items] |
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| Vessel capacity in DWT |
82,000 dwt
|
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| Date of expected delivery |
Q4 2019
|
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| Charter hire daily rate |
$ 5,700
|
|
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| Subsequent event | Second newbuilding bulk carrier |
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| Subsequent Event [Line Items] |
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| Vessel capacity in DWT |
82,000 dwt
|
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| Date of expected delivery |
Q1 2020
|
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| Charter hire daily rate |
$ 5,564
|
|
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| Subsequent event | Navios Equator Prosper |
|
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| Subsequent Event [Line Items] |
|
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| Vessel capacity in DWT |
|
|
171,191 dwt
|
|
|
|
|
|
|
|
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| Vessel year built |
|
|
2000
|
|
|
|
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|
|
|
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| Cash consideration for purchase of vessel |
|
|
$ 10,000,000
|
|
|
|
|
|
|
|
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| Subsequent event | Navios Herakles |
|
|
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| Subsequent Event [Line Items] |
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| Vessel capacity in DWT |
|
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52,061dwt
|
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|
|
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| Vessel year built |
|
|
|
|
2000
|
|
|
|
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|
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| Vessel sale price |
|
|
|
|
$ 7,682,000
|
|
|
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| Disposal date |
|
|
|
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Mar. 31, 2018
|
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| Vessel impairment loss |
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|
|
|
$ 6,715,000
|
|
|
|
|
|
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| Subsequent event | Navios Partners |
|
|
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|
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| Subsequent Event [Line Items] |
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|
|
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| Number of shares issued-common stock | shares |
|
|
|
18,422,000
|
|
|
|
|
|
|
|
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| Payments to acquire investment |
|
|
|
$ 5,000,000
|
|
|
|
|
|
|
|
|
| Price per unit | $ / shares |
|
|
|
$ 1.9
|
|
|
|
|
|
|
|
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| Payments to acquire common stock |
|
|
|
$ 714,000
|
|
|
|
|
|
|
|
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| General partner interest of Navios Holdings |
|
|
|
2.00%
|
|
|
|
|
|
|
|
|
| Ownership percentage of Navios Holdings |
|
|
|
20.20%
|
|
|
|
|
|
|
|
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| Subsequent event | Navios Containers |
|
|
|
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| Subsequent Event [Line Items] |
|
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| Ownership percentage of Navios Holdings |
|
3.20%
|
|
|
|
|
|
|
|
|
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| Subsequent event | Navios Containers | Private placement |
|
|
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| Subsequent Event [Line Items] |
|
|
|
|
|
|
|
|
|
|
|
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| Private placement of units to Navios Holdings | shares |
|
5,454,546
|
|
|
|
|
|
|
|
|
|
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| Price per share offered | $ / shares |
|
$ 5.5
|
|
|
|
|
|
|
|
|
|
|
| Investments on the equity |
|
$ 500,000
|
|
|
|
|
|
|
|
|
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|