Stockholders' Equity and Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017	Feb. 03, 2018
Stockholders' equity reconciliation
Stock (in shares), beginning of the period			81,371,118
Stockholders' equity, balance at the beginning of the period			$ 933,475	$ 980,994	$ 980,994
Cumulative adjustment from adoption of new accounting guidance			5,829
Net earnings (loss)	$ 25,734	$ 15,881	4,747	$ (5,346)	(3,901)
Foreign currency translation adjustment			(47,525)		93,416
Gain (loss) on derivative financial instruments designated as cash flow hedges, net of income tax			14,227		(19,994)
Actuarial valuation loss and related amortization, prior service credit amortization and foreign currency and other adjustments on defined benefit plans, net of income tax			527		(1,647)
Issuance of common stock under stock compensation plans, net of tax effect			4,169		(1,257)
Issuance of stock under Employee Stock Purchase Plan			465		566
Share-based compensation			7,989		18,852
Dividends			(37,166)		(76,048)
Share repurchases			(17,587)		(56,159)
Noncontrolling interest capital contribution					11
Noncontrolling interest capital distribution			$ (3,069)		$ (1,358)
Stock (in shares), end of the period	81,030,202		81,030,202		81,371,118
Stockholders' equity, balance at the end of the period	$ 866,081		$ 866,081		$ 933,475
Comprehensive income (loss), income tax effect
Gain (loss) on derivative financial instruments designated as cash flow hedges, tax effect			(2,130)		2,738
Actuarial valuation loss and related amortization, prior service credit amortization and foreign currency and other adjustments on defined benefit plans, tax effect			$ (65)		$ 435
Common Stock
Stockholders' equity reconciliation
Stock (in shares), beginning of the period			81,371,118	84,069,492	84,069,492
Issuance of common stock under stock compensation plans (in shares)			749,349		1,113,713
Issuance of stock under Employee Stock Purchase Plan (in shares)			28,543		54,300
Share repurchases (in shares)			(1,118,808)		(3,866,387)
Stock (in shares), end of the period	81,030,202		81,030,202		81,371,118
Treasury Stock
Stockholders' equity reconciliation
Stock (in shares), beginning of the period			60,252,569	56,440,482	56,440,482
Issuance of stock under Employee Stock Purchase Plan (in shares)			(28,543)		(54,300)
Share repurchases (in shares)			1,118,808		3,866,387
Stock (in shares), end of the period	61,342,834		61,342,834		60,252,569
Guess, Inc. Stockholders’ Equity
Stockholders' equity reconciliation
Stockholders' equity, balance at the beginning of the period			$ 916,819	$ 969,222	$ 969,222
Cumulative adjustment from adoption of new accounting guidance			5,829
Net earnings (loss)			4,309		(7,894)
Foreign currency translation adjustment			(47,712)		91,178
Gain (loss) on derivative financial instruments designated as cash flow hedges, net of income tax			14,227		(19,994)
Actuarial valuation loss and related amortization, prior service credit amortization and foreign currency and other adjustments on defined benefit plans, net of income tax			527		(1,647)
Issuance of common stock under stock compensation plans, net of tax effect			4,169		(1,257)
Issuance of stock under Employee Stock Purchase Plan			465		566
Share-based compensation			7,989		18,852
Dividends			(37,166)		(76,048)
Share repurchases			(17,587)		(56,159)
Noncontrolling interest capital contribution					0
Noncontrolling interest capital distribution			0		0
Stockholders' equity, balance at the end of the period	$ 851,869		851,869		916,819
Nonredeemable Noncontrolling Interests
Stockholders' equity reconciliation
Stockholders' equity, balance at the beginning of the period			16,656	$ 11,772	11,772
Cumulative adjustment from adoption of new accounting guidance			0
Net earnings (loss)			438		3,993
Foreign currency translation adjustment			187		2,238
Gain (loss) on derivative financial instruments designated as cash flow hedges, net of income tax			0		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
Noncontrolling interest capital contribution					11
Noncontrolling interest capital distribution			(3,069)		(1,358)
Stockholders' equity, balance at the end of the period	$ 14,212		$ 14,212		$ 16,656