Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		May 05, 2018	Apr. 29, 2017
Earnings Per Share [Abstract]
Net loss attributable to Guess, Inc.		$ (21,221)	$ (21,293)
Less net earnings attributable to nonvested restricted stockholders		198	200
Net loss attributable to common stockholders		$ (21,419)	$ (21,493)
Weighted average common shares used in basic computations (in shares)		79,901,000	83,010,000
Effect of dilutive securities:
Stock options and restricted stock units (in shares)	[1]	0	0
Weighted average common shares used in diluted computations (in shares)		79,901,000	83,010,000
Net loss per common share attributable to common stockholders:
Basic (in dollars per share)		$ (0.27)	$ (0.26)
Diluted (in dollars per share)		$ (0.27)	$ (0.26)
Antidilutive securities excluded from computation of earnings (loss) per share
Antidilutive equity awards excluded from computation of diluted weighted average common shares (in shares)		2,895,494	3,779,542
Potentially dilutive shares
Antidilutive securities excluded from computation of earnings (loss) per share
Antidilutive equity awards excluded from computation of diluted weighted average common shares (in shares)		1,077,017	37,251
Performance-based units
Antidilutive securities excluded from computation of earnings (loss) per share
Performance or market awards excluded from computation of EPS (in shares)		871,904
Performance-based or market-based units
Antidilutive securities excluded from computation of earnings (loss) per share
Performance or market awards excluded from computation of EPS (in shares)			1,275,143

[1] For the three months ended May 5, 2018 and April 29, 2017, there were 1,077,017 and 37,251, respectively, of potentially dilutive shares that were not included in the computation of diluted weighted average common shares and common equivalent shares outstanding because their effect would have been antidilutive given the Company’s net loss.