Earnings per Share - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 29, 2023	Jul. 30, 2022
Earnings Per Share [Abstract]
Net earnings attributable to Guess?, Inc.	$ 39,033	$ 23,962	$ 27,228	$ 31,932
Less net earnings attributable to nonvested restricted stockholders	502	264	392	264
Net earnings attributable to common stockholders	38,531	23,698	26,836	31,668
Add interest expense related to the convertible senior notes	2,743	988	3,159	1,925
Net earnings attributable to common stockholders used in diluted computations	$ 41,274	$ 24,686	$ 29,995	$ 33,593
Weighted average common shares used in basic computations (in shares)	52,951	56,954	53,649	59,003
Effect of dilutive securities:
Stock options and restricted stock units (in shares)	1,075	1,528	1,222	1,623
Convertible senior notes (in shares)	15,843	11,817	10,737	11,817
Weighted average common shares used in diluted computations (in shares)	69,869	70,299	65,608	72,443
Net earnings per common share attributable to common stockholders:
Basic (in dollars per share)	$ 0.73	$ 0.42	$ 0.50	$ 0.54
Diluted (in dollars per share)	$ 0.59	$ 0.35	$ 0.46	$ 0.46