Net Income (Loss) per Common Share (Tables)

3 Months Ended

Apr. 30, 2017

Earnings Per Share [Abstract]

Schedule of reconciliation between basic and diluted net income per share

	Three Months Ended April 30,
	2017			2016
Net income (loss) attributable to G-III	$	(10,391	)	$	2,771
Basic net income (loss) per share:
Basic common shares		48,648			45,549
Basic net income (loss) per share	$	(0.21	)	$	0.06
Diluted net income (loss) per share:
Basic common shares		48,648			45,549
Diluted restricted stock awards and stock options		—			1,393
Diluted common shares		48,648			46,942
Diluted net income (loss) per share	$	(0.21	)	$	0.06