Earnings Per Share - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Feb. 03, 2024	Jan. 28, 2023	Jan. 29, 2022
Earnings Per Share [Abstract]
Net earnings attributable to Guess?, Inc.	$ 198,199	$ 149,610	$ 171,363
Less net earnings attributable to nonvested restricted stockholders	2,369	1,405	1,831
Net earnings attributable to common stockholders	195,830	148,205	169,532
Add expenses related to the Notes	19,691	4,896	0
Net earnings attributable to common stockholders used in diluted computations	$ 215,521	$ 153,101	$ 169,532
Weighted average common shares used in basic computations (in shares)	53,329	56,484	64,021
Effect of dilutive securities:
Stock options and restricted stock units (in shares)	1,332	1,639	1,898
The Notes (in shares)	15,121	11,964	0
Weighted average common shares used in diluted computations (in shares)	69,782	70,087	65,919
Net earnings per common share attributable to common stockholders:
Basic (in dollars per share)	$ 3.67	$ 2.62	$ 2.65
Diluted (in dollars per share)	$ 3.09	$ 2.18	$ 2.57