CONDENSED CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2022	Apr. 30, 2021
Income Statement [Abstract]
Net sales	$ 688,757	$ 519,910
Cost of goods sold	442,718	324,441
Gross profit	246,039	195,469
Selling, general and administrative expenses	185,407	141,603
Depreciation and amortization	6,095	7,044
Operating profit	54,537	46,822
Other (loss) income	(2,708)	1,820
Interest and financing charges, net	(12,203)	(12,004)
Income before income taxes	39,626	36,638
Income tax expense (benefit)	9,000	10,259
Net income	30,626	26,379
Less: (Loss) income attributable to noncontrolling interests	(8)	58
Net income attributable to G-III Apparel Group, Ltd.	$ 30,634	$ 26,321
Basic:
Net income per common share	$ 0.64	$ 0.54
Weighted average number of shares outstanding (in shares)	48,016	48,377
Diluted:
Net income per common share	$ 0.62	$ 0.53
Weighted average number of shares outstanding (in shares)	49,108	49,510
Other comprehensive loss:
Foreign currency translation adjustments	$ (4,130)	$ (6,959)
Other comprehensive loss	(4,130)	(6,959)
Comprehensive income	26,496	19,420
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest [Abstract]
Net (loss) income	(8)	58
Foreign currency translation adjustments	2	(4)
Comprehensive income attributable to noncontrolling interests	(6)	54
Comprehensive income attributable to G-III Apparel Group, Ltd	$ 26,490	$ 19,474