CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME [Abstract]      
Revenue $ 517,739 $ 463,049 $ 419,782
Administrative fee revenue from affiliates 28,393 23,667 21,799
Time charter, voyage and logistics business expenses (206,333) (213,929) (175,072)
Direct vessel expenses (101,543) (116,713) (127,396)
General and administrative expenses incurred on behalf of affiliates (28,393) (23,667) (21,799)
General and administrative expenses (27,513) (27,521) (25,295)
Depreciation and amortization (102,839) (104,112) (113,825)
Provision for losses on accounts receivable (575) (269) (1,304)
Interest income 8,748 6,831 4,947
Interest expense and finance cost (139,120) (121,611) (113,639)
Impairment losses (200,657) (50,565) 0
Bargain gain upon obtaining control 58,313 0 0
Gain/(loss) on bond and debt extinguishment 6,464 (981) 29,187
Gain on sale of assets 28 1,064 0
Other income 14,582 6,140 18,175
Other expense (13,708) (13,761) (11,665)
Loss before equity in net earnings of affiliated companies (186,414) (172,378) (96,105)
Equity in net (losses)/earnings of affiliated companies (80,205) 4,399 (202,779)
Loss before taxes (266,619) (167,979) (298,884)
Income tax benefit/(expense) 1,108 3,192 (1,265)
Net loss (265,511) (164,787) (300,149)
Less: Net income attributable to the noncontrolling interest (3,207) (1,123) (3,674)
Net loss attributable to Navios Holdings common stockholders (268,718) (165,910) (303,823)
Loss attributable to Navios Holdings common stockholders, basic and diluted $ (278,959) $ (175,298) $ (273,105)
Basic and diluted loss per share attributable to Navios Holdings common stockholders $ (23.33) $ (15.02) $ (25.44)
Weighted average number of shares, basic and diluted 11,958,959 11,667,346 10,736,678
Other comprehensive income/(loss)      
Unrealized holding gain on investments in-available-for-sale securities $ 0 $ 2 $ 100
Reclassification to earnings 0 0 345
Total other comprehensive income 0 2 445
Total comprehensive loss (265,511) (164,785) (299,704)
Comprehensive income attributable to noncontrolling interest (3,207) (1,123) (3,674)
Total comprehensive loss attributable to Navios Holdings common stockholders $ (268,718) $ (165,908) $ (303,378)