Stockholders' Equity and Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Apr. 29, 2017	Apr. 30, 2016	Jan. 28, 2017
Stockholders' equity reconciliation
Stock (in shares), beginning of the period	84,069,492
Stockholders' equity, balance at the beginning of the period	$ 980,994	$ 1,031,293	$ 1,031,293
Net earnings (loss)	(21,227)	$ (25,154)	25,398
Foreign currency translation adjustment	12,835		(2,632)
Loss on derivative financial instruments designated as cash flow hedges, net of income tax	(452)		(1,852)
Other-than-temporary-impairment and unrealized loss on marketable securities, net of income tax			15
Actuarial valuation loss and related amortization, prior service credit amortization and foreign currency and other adjustments on defined benefit plans, net of income tax	76		(923)
Issuance of common stock under stock compensation plans, net of tax effect	(138)		(3,813)
Issuance of stock under Employee Stock Purchase Plan	133		558
Share-based compensation	3,963		16,908
Dividends	(19,041)		(76,997)
Share repurchases	(17,827)		(3,532)
Purchase of redeemable noncontrolling interest			0
Noncontrolling interest capital contribution	$ 11		0
Noncontrolling interest capital distribution			(2,759)
Redeemable noncontrolling interest redemption value adjustment			$ (670)
Stock (in shares), end of the period	83,255,709		84,069,492
Stockholders' equity, balance at the end of the period	$ 939,327		$ 980,994
Comprehensive income (loss), income tax effect
Loss on derivative financial instruments designated as cash flow hedges, tax effect	(237)		864
Other-than-temporary-impairment and unrealized loss on marketable securities, tax effect			(6)
Actuarial valuation loss and related amortization, prior service credit amortization and foreign currency and other adjustments on defined benefit plans, tax effect	$ (20)		$ 21
Common Stock
Stockholders' equity reconciliation
Stock (in shares), beginning of the period	84,069,492	83,833,937	83,833,937
Issuance of common stock under stock compensation plans (in shares)	656,945		481,037
Issuance of stock under Employee Stock Purchase Plan (in shares)	14,467		44,486
Share repurchases (in shares)	(1,485,195)		(289,968)
Stock (in shares), end of the period	83,255,709		84,069,492
Treasury Stock
Stockholders' equity reconciliation
Stock (in shares), beginning of the period	56,440,482	56,195,000	56,195,000
Issuance of stock under Employee Stock Purchase Plan (in shares)	(14,467)		(44,486)
Share repurchases (in shares)	1,485,195		289,968
Stock (in shares), end of the period	57,911,210		56,440,482
Guess, Inc. Stockholders’ Equity
Stockholders' equity reconciliation
Stockholders' equity, balance at the beginning of the period	$ 969,222	$ 1,018,475	$ 1,018,475
Net earnings (loss)	(21,293)		22,761
Foreign currency translation adjustment	11,473		(575)
Loss on derivative financial instruments designated as cash flow hedges, net of income tax	(452)		(1,852)
Other-than-temporary-impairment and unrealized loss on marketable securities, net of income tax			15
Actuarial valuation loss and related amortization, prior service credit amortization and foreign currency and other adjustments on defined benefit plans, net of income tax	76		(923)
Issuance of common stock under stock compensation plans, net of tax effect	(138)		(3,813)
Issuance of stock under Employee Stock Purchase Plan	133		558
Share-based compensation	3,963		16,908
Dividends	(19,041)		(76,997)
Share repurchases	(17,827)		(3,532)
Purchase of redeemable noncontrolling interest			(1,133)
Noncontrolling interest capital contribution	0		0
Noncontrolling interest capital distribution			0
Redeemable noncontrolling interest redemption value adjustment			(670)
Stockholders' equity, balance at the end of the period	926,116		969,222
Nonredeemable Noncontrolling Interests
Stockholders' equity reconciliation
Stockholders' equity, balance at the beginning of the period	11,772	$ 12,818	12,818
Net earnings (loss)	66		2,637
Foreign currency translation adjustment	1,362		(2,057)
Loss on derivative financial instruments designated as cash flow hedges, net of income tax	0		0
Other-than-temporary-impairment and unrealized loss on marketable securities, net of income tax			0
Actuarial valuation loss and related amortization, prior service credit amortization and foreign currency and other adjustments on defined benefit plans, net of income tax	0		0
Issuance of common stock under stock compensation plans, net of tax effect	0		0
Issuance of stock under Employee Stock Purchase Plan	0		0
Share-based compensation	0		0
Dividends	0		0
Share repurchases	0		0
Purchase of redeemable noncontrolling interest			1,133
Noncontrolling interest capital contribution	11		0
Noncontrolling interest capital distribution			(2,759)
Redeemable noncontrolling interest redemption value adjustment			0
Stockholders' equity, balance at the end of the period	$ 13,211		$ 11,772