Earnings per Share - Computation of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 30, 2022	May 01, 2021
Earnings Per Share [Abstract]
Net earnings attributable to Guess?, Inc.	$ 7,970	$ 12,006
Less net earnings attributable to nonvested restricted stockholders	56	130
Net earnings attributable to common stockholders	7,914	11,876
Add interest expense related to the Notes	902	0
Net earnings attributable to common stockholders used in diluted computations	$ 8,816	$ 11,876
Weighted average common shares used in basic computations (in shares)	61,052	64,035
Effect of dilutive securities:
Stock options and restricted stock units (in shares)	1,666	1,905
The Notes (in shares)	11,751	0
Weighted average common shares used in diluted computations (in shares)	74,469	65,940
Net earnings per common share attributable to common stockholders:
Basic (in dollars per share)	$ 0.13	$ 0.19
Diluted (in dollars per share)	$ 0.12	$ 0.18