CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Income (loss)	Retained Earnings	Common Stock Held in Treasury	Total
Balance at Jan. 31, 2011	$ 201	$ 152,340	$ (19)	$ 151,942	$ (970)	$ 303,494
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity awards exercised/vested, net	2	617				619
Tax benefit from exercise/vesting of equity awards		1,945				1,945
Amortization of share-based compensation		5,200				5,200
Effect of exchange rate changes			23			23
Net income attributable to G-III				49,620		49,620
Treasury share purchase					(2,929)	(2,929)
Balance at Jan. 31, 2012	203	160,102	4	201,562	(3,899)	357,972
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity awards exercised/vested, net	3	1,422				1,425
Tax benefit from exercise/vesting of equity awards		1,870				1,870
Amortization of share-based compensation		7,738				7,738
Effect of exchange rate changes			3,519			3,519
Net income attributable to G-III				56,875		56,875
Balance at Jan. 31, 2013	206	171,132	3,523	258,437	(3,899)	429,399
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity awards exercised/vested, net	3	841				844
Tax benefit from exercise/vesting of equity awards		2,915				2,915
Amortization of share-based compensation		9,953				9,953
Effect of exchange rate changes			2,642			2,642
Net income attributable to G-III				77,360		77,360
Balance at Jan. 31, 2014	$ 209	$ 184,841	$ 6,165	$ 335,797	$ (3,899)	$ 523,113