Other Financial Information - Statement of Comprehensive (Loss)/Income (Table) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Condensed Financial Statements Captions [Line Items]        
Revenue $ 119,839 $ 145,408 $ 238,119 $ 267,599
Administrative fee revenue from affiliates 3,882 3,502 7,804 6,881
Time charter, voyage and logistics business expenses (57,856) (63,514) (127,790) (114,692)
Direct vessel expenses (35,748) (33,840) (66,565) (62,168)
General and administrative expenses incurred on behalf of affiliates (3,882) (3,502) (7,804) (6,881)
General and administrative expenses (8,668) (9,567) (15,479) (20,598)
Depreciation and amortization (27,479) (25,828) (48,684) (51,502)
Loss on bond extinguishment 0 (27,281) 0 (27,281)
Other (expense)/income, net (3,321) (7,481) (5,235) (5,415)
(Loss)/income before equity in net earnings of affiliated companies (41,071) (50,624) (81,510) (70,624)
Equity in net earnings of affiliated companies 17,968 7,079 31,880 29,497
(Loss)/income before taxes (23,103) (43,545) (49,630) (41,127)
Income tax (expense)/benefit 1,695 (848) 1,843 (1,136)
Net (loss)/income (21,408) (44,393) (47,787) (42,263)
Less: Net (income)/loss attributable to the noncontrolling interest (3,405) 7,713 (3,704) 7,636
Net (loss)/income attributable to Navios Holdings common stockholders (24,813) (36,680) (51,491) (34,627)
Other Comprehensive (loss)/income        
Unrealized holding income on investments in available-for-sale securities (213) 758 (491) (381)
Reclassification to earnings 0 11,553 0 11,553
Total other comprehensive (loss)/income (213) 12,311 (491) 11,172
Total comprehensive (loss)/income (21,621) (32,082) (48,278) (31,091)
Comprehensive (income)/loss attributable to noncontrolling interest (3,405) 7,713 (3,704) 7,636
Total comprehensive (loss)/income attributable to Navios Holdings common stockholders (25,026) (24,369) (51,982) (23,455)
Navios Maritime Holdings Inc. Issuer        
Condensed Financial Statements Captions [Line Items]        
General and administrative expenses (1,096) (1,427) (2,214) (3,737)
Depreciation and amortization (701) (701) (1,394) (1,394)
Interest expense and finance cost, net (19,674) (19,643) (39,384) (39,336)
Other (expense)/income, net (126) 2 (67) (13)
(Loss)/income before equity in net earnings of affiliated companies (21,597) (21,769) (43,059) (44,480)
(Loss)/income from subsidiaries (19,205) (19,639) (36,504) (13,001)
Equity in net earnings of affiliated companies 15,989 4,729 28,072 22,854
(Loss)/income before taxes (24,813) (36,679) (51,491) (34,627)
Net (loss)/income (24,813) (36,679) (51,491) (34,627)
Net (loss)/income attributable to Navios Holdings common stockholders (24,813) (36,679) (51,491) (34,627)
Other Comprehensive (loss)/income        
Unrealized holding income on investments in available-for-sale securities (213) 758 (491) (381)
Reclassification to earnings   11,553   11,553
Total other comprehensive (loss)/income (213) 12,311 (491) 11,172
Total comprehensive (loss)/income (25,026) (24,368) (51,982) (23,455)
Total comprehensive (loss)/income attributable to Navios Holdings common stockholders (25,026) (24,368) (51,982) (23,455)
Guarantor Subsidiaries        
Condensed Financial Statements Captions [Line Items]        
Revenue 53,583 75,440 106,801 152,033
Administrative fee revenue from affiliates 3,882 3,502 7,804 6,881
Time charter, voyage and logistics business expenses (42,796) (39,088) (85,731) (77,468)
Direct vessel expenses (12,888) (13,863) (25,610) (26,532)
General and administrative expenses incurred on behalf of affiliates (3,882) (3,502) (7,804) (6,881)
General and administrative expenses (3,661) (4,789) (5,748) (10,102)
Depreciation and amortization (20,187) (19,146) (34,232) (38,060)
Interest expense and finance cost, net (1,429) (1,432) (2,944) (3,069)
Other (expense)/income, net 259 (5,300) 760 (2,292)
(Loss)/income before equity in net earnings of affiliated companies (27,119) (8,178) (46,704) (5,490)
(Loss)/income from subsidiaries 6,006 (13,681) 6,534 (13,794)
Equity in net earnings of affiliated companies 1,180 1,218 2,219 4,611
(Loss)/income before taxes (19,933) (20,641) (37,951) (14,673)
Income tax (expense)/benefit (72) (90) (142) (178)
Net (loss)/income (20,005) (20,731) (38,093) (14,851)
Less: Net (income)/loss attributable to the noncontrolling interest   (41)   (182)
Net (loss)/income attributable to Navios Holdings common stockholders (20,005) (20,772) (38,093) (15,033)
Other Comprehensive (loss)/income        
Unrealized holding income on investments in available-for-sale securities (213) 758 (491) (381)
Reclassification to earnings   11,553   11,553
Total other comprehensive (loss)/income (213) 12,311 (491) 11,172
Total comprehensive (loss)/income (20,218) (8,420) (38,584) (3,679)
Comprehensive (income)/loss attributable to noncontrolling interest   (41)   (182)
Total comprehensive (loss)/income attributable to Navios Holdings common stockholders (20,218) (8,461) (38,584) (3,861)
Non Guarantor Subsidiaries        
Condensed Financial Statements Captions [Line Items]        
Revenue 66,256 69,968 131,318 115,566
Time charter, voyage and logistics business expenses (15,060) (24,426) (42,059) (37,224)
Direct vessel expenses (22,860) (19,977) (40,955) (35,636)
General and administrative expenses (3,911) (3,351) (7,517) (6,759)
Depreciation and amortization (6,591) (5,981) (13,058) (12,048)
Interest expense and finance cost, net (6,735) (7,446) (13,548) (14,162)
Loss on bond extinguishment   (27,281)   (27,281)
Other (expense)/income, net (3,454) (2,183) (5,928) (3,110)
(Loss)/income before equity in net earnings of affiliated companies 7,645 (20,677) 8,253 (20,654)
Equity in net earnings of affiliated companies 799 1,132 1,589 2,032
(Loss)/income before taxes 8,444 (19,545) 9,842 (18,622)
Income tax (expense)/benefit 1,767 (758) 1,985 (958)
Net (loss)/income 10,211 (20,303) 11,827 (19,580)
Less: Net (income)/loss attributable to the noncontrolling interest (3,405) 7,754 (3,704) 7,818
Net (loss)/income attributable to Navios Holdings common stockholders 6,806 (12,549) 8,123 (11,762)
Other Comprehensive (loss)/income        
Total comprehensive (loss)/income 10,211 (20,303) 11,827 (19,580)
Comprehensive (income)/loss attributable to noncontrolling interest (3,405) 7,754 (3,704) 7,818
Total comprehensive (loss)/income attributable to Navios Holdings common stockholders 6,806 (12,549) 8,123 (11,762)
Eliminations        
Condensed Financial Statements Captions [Line Items]        
(Loss)/income from subsidiaries 13,199 33,320 29,970 26,795
(Loss)/income before taxes 13,199 33,320 29,970 26,795
Net (loss)/income 13,199 33,320 29,970 26,795
Net (loss)/income attributable to Navios Holdings common stockholders 13,199 33,320 29,970 26,795
Other Comprehensive (loss)/income        
Unrealized holding income on investments in available-for-sale securities 213 (758) 491 381
Reclassification to earnings   (11,553)   (11,553)
Total other comprehensive (loss)/income 213 (12,311) 491 (11,172)
Total comprehensive (loss)/income 13,412 21,009 30,461 15,623
Total comprehensive (loss)/income attributable to Navios Holdings common stockholders 13,412 21,009 30,461 15,623
Total        
Condensed Financial Statements Captions [Line Items]        
Revenue 119,839 145,408 238,119 267,599
Administrative fee revenue from affiliates 3,882 3,502 7,804 6,881
Time charter, voyage and logistics business expenses (57,856) (63,514) (127,790) (114,692)
Direct vessel expenses (35,748) (33,840) (66,565) (62,168)
General and administrative expenses incurred on behalf of affiliates (3,882) (3,502) (7,804) (6,881)
General and administrative expenses (8,668) (9,567) (15,479) (20,598)
Depreciation and amortization (27,479) (25,828) (48,684) (51,502)
Interest expense and finance cost, net (27,838) (28,521) (55,876) (56,567)
Loss on bond extinguishment   (27,281)   (27,281)
Other (expense)/income, net (3,321) (7,481) (5,235) (5,415)
(Loss)/income before equity in net earnings of affiliated companies (41,071) (50,624) (81,510) (70,624)
(Loss)/income from subsidiaries 0 0 0 0
Equity in net earnings of affiliated companies 17,968 7,079 31,880 29,497
(Loss)/income before taxes (23,103) (43,545) (49,630) (41,127)
Income tax (expense)/benefit 1,695 (848) 1,843 (1,136)
Net (loss)/income (21,408) (44,393) (47,787) (42,263)
Less: Net (income)/loss attributable to the noncontrolling interest (3,405) 7,713 (3,704) 7,636
Net (loss)/income attributable to Navios Holdings common stockholders (24,813) (36,680) (51,491) (34,627)
Other Comprehensive (loss)/income        
Unrealized holding income on investments in available-for-sale securities (213) 758 (491) (381)
Reclassification to earnings   11,553   11,553
Total other comprehensive (loss)/income (213) 12,311 (491) 11,172
Total comprehensive (loss)/income (21,621) (32,082) (48,278) (31,091)
Comprehensive (income)/loss attributable to noncontrolling interest (3,405) 7,713 (3,704) 7,636
Total comprehensive (loss)/income attributable to Navios Holdings common stockholders $ (25,026) $ (24,369) $ (51,982) $ (23,455)