Stockholders' Equity - Reclassifications Out of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020	Nov. 02, 2019	Oct. 31, 2020	Nov. 02, 2019
Reclassifications out of accumulated other comprehensive income (loss) to net earnings (loss)
Cost of product sales	$ 329,764	$ 386,445	$ 807,297	$ 1,158,741
Other income (expense), net	6,521	62	20,553	4,346
Interest expense	5,809	4,946	17,212	11,156
Income tax expense (benefit)	5,145	4,548	(14,850)	10,649
Net earnings (loss) attributable to Guess, Inc.	(26,376)	(12,423)	151,648	(16,371)
Reclassifications out of accumulated other comprehensive income (loss)
Reclassifications out of accumulated other comprehensive income (loss) to net earnings (loss)
Net earnings (loss) attributable to Guess, Inc.	(1,479)	(2,437)	(5,304)	(4,010)
Derivative Financial Instruments Designated as Cash Flow Hedges | Reclassifications out of accumulated other comprehensive income (loss)
Reclassifications out of accumulated other comprehensive income (loss) to net earnings (loss)
Cost of product sales	(1,804)	(2,826)	(6,299)	(4,813)
Interest expense	67	(28)	112	(118)
Income tax expense (benefit)	184	327	667	651
Net earnings (loss) attributable to Guess, Inc.	(1,553)	(2,527)	(5,520)	(4,280)
Net Actuarial Loss Amortization | Reclassifications out of accumulated other comprehensive income (loss)
Reclassifications out of accumulated other comprehensive income (loss) to net earnings (loss)
Other income (expense), net	101	112	294	334
Prior Service Credit Amortization | Reclassifications out of accumulated other comprehensive income (loss)
Reclassifications out of accumulated other comprehensive income (loss) to net earnings (loss)
Other income (expense), net	(17)	(10)	(49)	(29)
Defined Benefit Plans | Reclassifications out of accumulated other comprehensive income (loss)
Reclassifications out of accumulated other comprehensive income (loss) to net earnings (loss)
Income tax expense (benefit)	(10)	(12)	(29)	(35)
Net earnings (loss) attributable to Guess, Inc.	$ 74	$ 90	$ 216	$ 270