Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 02, 2019	Nov. 03, 2018	Aug. 04, 2018	May 05, 2018	Feb. 03, 2018	Oct. 28, 2017	Jul. 29, 2017	Apr. 29, 2017	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017
Earnings Per Share [Abstract]
Net earnings (loss) attributable to Guess, Inc.	$ 23,232	$ (13,442)	$ 25,530	$ (21,221)	$ 1,040	$ (2,860)	$ 15,219	$ (21,293)	$ 14,099	$ (7,894)	$ 22,761
Less net earnings attributable to nonvested restricted stockholders									756	764	527
Net earnings (loss) attributable to common stockholders									$ 13,343	$ (8,658)	$ 22,234
Weighted average common shares used in basic computations									80,146,000	82,189,000	83,666,000
Effect of dilutive securities:
Stock options and restricted stock units (in shares)									1,443,000	0	163,000
Weighted average common shares used in diluted computations									81,589,000	82,189,000	83,829,000
Net earnings (loss) per common share attributable to common stockholders:
Basic (in dollars per share)	$ 0.29	$ (0.17)	$ 0.32	$ (0.27)	$ (0.01)	$ (0.04)	$ 0.18	$ (0.26)	$ 0.17	$ (0.11)	$ 0.27
Diluted (in dollars per share)	$ 0.28	$ (0.17)	$ 0.31	$ (0.27)	$ (0.01)	$ (0.04)	$ 0.18	$ (0.26)	0.16	(0.11)	0.27
Dividends declared per common share (in dollars per share)									$ 0.9	$ 0.9	$ 0.90
Antidilutive securities excluded from computation of earnings per share
Antidilutive equity awards excluded from computation of diluted weighted average common shares (in shares)									1,526,717	2,925,549	3,254,259
Potentially dilutive shares
Antidilutive securities excluded from computation of earnings per share
Antidilutive equity awards excluded from computation of diluted weighted average common shares (in shares)										652,494
Performance-based units
Antidilutive securities excluded from computation of earnings per share
Awards subject to performance or market conditions that were excluded from the computation of diluted weighted average common shares (in shares)									928,026
Performance-based or market-based units
Antidilutive securities excluded from computation of earnings per share
Awards subject to performance or market conditions that were excluded from the computation of diluted weighted average common shares (in shares)										899,345	473,878