Earnings (Loss) per Share - Schedule of Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Nov. 02, 2024	Oct. 28, 2023	Nov. 02, 2024	Oct. 28, 2023
Earnings Per Share [Abstract]
Net earnings (loss) attributable to Guess?, Inc.	$ (23,395)	$ 55,701	$ (20,976)	$ 82,929
Less net earnings attributable to nonvested restricted stockholders	210	672	687	1,066
Net earnings (loss) attributable to common stockholders	(23,605)	55,029	(21,663)	81,863
Add (income) related to the convertible senior notes	(7,712)
Add expenses related to the convertible senior notes		2,779	0	6,826
Net earnings (loss) attributable to common stockholders used in diluted computations	$ (31,317)	$ 57,808	$ (21,663)	$ 88,689
Weighted average common shares used in basic computations (in shares)	50,798	53,052	52,047	53,450
Effect of dilutive securities:
Stock options and restricted stock units (in shares)	0	1,366	0	1,276
Convertible senior notes (in shares)	15,810	15,913	0	13,372
Weighted average common shares used in diluted computations (in shares)	66,608	70,331	52,047	68,098
Net earnings (loss) per common share attributable to common stockholders:
Basic (in dollars per share)	$ (0.46)	$ 1.04	$ (0.42)	$ 1.53
Diluted (in dollars per share)	$ (0.47)	$ 0.82	$ (0.42)	$ 1.30