Loss Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Apr. 29, 2017	Apr. 30, 2016
Earnings Per Share [Abstract]
Net loss attributable to Guess, Inc.		$ (21,293)	$ (25,178)
Less net earnings attributable to nonvested restricted stockholders		200	150
Net loss attributable to common stockholders		$ (21,493)	$ (25,328)
Weighted average common shares used in basic computations		83,010,000	83,514,000
Effect of dilutive securities:
Stock options and restricted stock units (in shares)	[1]	0	0
Weighted average common shares used in diluted computations		83,010,000	83,514,000
Net loss per common share attributable to common stockholders:
Basic (in dollars per share)		$ (0.26)	$ (0.30)
Diluted (in dollars per share)		$ (0.26)	$ (0.30)
Antidilutive securities excluded from computation of loss per share
Antidilutive equity awards excluded from computation of diluted weighted average common shares		3,779,542	3,022,961
Potentially dilutive shares
Antidilutive securities excluded from computation of loss per share
Antidilutive equity awards excluded from computation of diluted weighted average common shares		37,251	249,003
Performance-based or market-based units
Antidilutive securities excluded from computation of loss per share
Awards subject to performance or market conditions that were excluded from the computation of diluted weighted average common shares		1,275,143	602,816

[1] For the three months ended April 29, 2017 and April 30, 2016, there were 37,251 and 249,003 potentially dilutive shares, respectively, 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 during each of the respective periods.