Basis of Presentation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 29, 2017	Apr. 30, 2016	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016	Jan. 29, 2017
Fiscal Year
Number of days in fiscal year				364 days	364 days
New accounting pronouncements and changes in accounting principles
Decrease to income tax benefit from tax shortfalls	$ (1,403)	$ (4,791)
Negative impact on net loss attributable to Guess, Inc. from tax shortfalls	$ 21,293	$ 25,178
Unfavorable impact on basic loss per share from tax shortfalls	$ 0.26	$ 0.30
Unfavorable impact on diluted loss per share from tax shortfalls	$ 0.26	$ 0.30
Increase in operating cash flows from reclass of excess tax benefits	$ (29,947)	$ (30,711)
Decrease in financing cash flows from reclass of excess tax benefits	35,960	(3,799)
Accounting Standards Update 2016-09
New accounting pronouncements and changes in accounting principles
Decrease to income tax benefit from tax shortfalls	600
Negative impact on net loss attributable to Guess, Inc. from tax shortfalls	$ 600
Unfavorable impact on basic loss per share from tax shortfalls	$ 0.01
Unfavorable impact on diluted loss per share from tax shortfalls	$ 0.01
Cumulative adjustment to reduce retained earnings as a result of adoption of guidance which allows entities to account for forfeitures as they occur						$ 300
Forecast
Fiscal Year
Number of days in fiscal year			371 days
Restatement adjustment | Accounting Standards Update 2016-09
New accounting pronouncements and changes in accounting principles
Increase in operating cash flows from reclass of excess tax benefits		100
Decrease in financing cash flows from reclass of excess tax benefits		$ 100