Loss Per Common Share (Table) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Numerator:        
Net loss attributable to Navios Holdings common stockholders $ (26,416) $ (24,813) $ (33,881) $ (51,491)
Less:        
Dividend on Preferred Stock and on unvested restricted shares (3,971) (4,093) (7,941) (8,166)
Loss available to Navios Holdings common stockholders, basic and diluted $ (30,387) $ (28,906) $ (41,822) $ (59,657)
Denominator:        
Denominator for basic and diluted net loss per share attributable to Navios Holdings common stockholders - weighted average shares 106,009,049 105,401,820 106,022,826 105,251,590
Basic and diluted net losses per share attributable to Navios Holdings common stockholders $ (0.29) $ (0.27) $ (0.39) $ (0.57)