Defined Benefit Plans (Details) $ in Thousands, SFr in Millions	3 Months Ended						6 Months Ended				12 Months Ended
	Jul. 30, 2016 USD ($) participant	Jul. 30, 2016 CHF (SFr)	Apr. 30, 2016 USD ($)	Aug. 01, 2015 USD ($)	Aug. 01, 2015 CHF (SFr)	May 02, 2015 USD ($)	Jul. 30, 2016 USD ($) participant	Jul. 30, 2016 CHF (SFr)	Aug. 01, 2015 USD ($)	Aug. 01, 2015 CHF (SFr)	Jan. 30, 2016 USD ($)	Jul. 30, 2016 CHF (SFr) participant	Jan. 30, 2016 CHF (SFr)
Components of net periodic defined benefit pension (credit) cost
Actuarial gain	$ 0			$ 11,378			$ 0		$ 11,378
SERP
Components of net periodic defined benefit pension (credit) cost
Interest cost	460			495			920		991
Net amortization of unrecognized prior service credit	0			(39)			0		(97)
Net amortization of actuarial losses	38			290			77		718
Curtailment gain	0			(1,651)			0		(1,651)
Net periodic defined benefit pension (credit) cost	$ 498			(905)			$ 997		(39)
Number of employees considered actively participating under the terms of the SERP | participant	0						0					0
SERP benefit payments	$ 400			400			$ 800		800
SERP | Executive Chairman of the Board and Chief Creative Officer
Components of net periodic defined benefit pension (credit) cost
Curtailment gain				(1,651)							$ (1,651)
Actuarial gain				11,378							11,378
Swiss Pension Plan | Switzerland
Components of net periodic defined benefit pension (credit) cost
Net periodic defined benefit pension (credit) cost	400	SFr 0.4		500	SFr 0.4		800	SFr 0.8	900	SFr 0.9
Projected benefit obligation	16,500						16,500				15,200	SFr 16.0	SFr 15.6
Plan assets at fair value	13,900						13,900				12,700	13.4	13.0
Other income/expense | SERP
Components of net periodic defined benefit pension (credit) cost
Gains (losses) as a result of changes in value of the insurance policy investments, included in other income and expense	1,900			$ (300)			5,100		1,600
Realized gain resulting from payout on insurance policy investments			$ 100			$ 700	100		$ 700
Other assets | SERP
Components of net periodic defined benefit pension (credit) cost
Cash surrender values of the insurance policies held in a rabbi trust	57,700						57,700				52,500
Accrued expenses and other long-term liabilities | SERP
Components of net periodic defined benefit pension (credit) cost
Projected benefit obligation	53,500						53,500				53,400
Other long-term liabilities | Swiss Pension Plan | Switzerland
Components of net periodic defined benefit pension (credit) cost
Net liability	$ 2,600						$ 2,600				$ 2,500	SFr 2.6	SFr 2.6