Net Income per Common Share (Tables)

9 Months Ended

Oct. 31, 2017

Earnings Per Share [Abstract]

Schedule of reconciliation between basic and diluted net income per share

	Three Months Ended				Nine Months Ended
	October 31,				October 31,
	2017		2016		2017		2016
	(In thousands, except per share amounts)
Net income attributable to G-III	$	81,625	$	70,564	$	62,666	$	72,042
Basic net income per share:
Basic common shares		48,846		45,918		48,729		45,713
Basic net income per share	$	1.67	$	1.54	$	1.29	$	1.58
Diluted net income per share:
Basic common shares		48,846		45,918		48,729		45,713
Diluted restricted stock awards and stock options		682		984		681		1,234
Diluted common shares		49,528		46,902		49,410		46,947
Diluted net income per share	$	1.65	$	1.50	$	1.27	$	1.53