Income Taxes (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Aug. 01, 2020	Jul. 31, 2021	Aug. 01, 2020
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ (6,700,000)		$ (10,100,000)	$ (36,500,000)
Unrecognized Tax Benefits that Would Impact Effective Tax Rate		$ 47,600,000		47,600,000
Income Tax Expense Benefit Continuing Operations Discrete Items				84,100,000
Valuation Allowance, Deferred Tax Asset, Discrete Benefit, Increase (Decrease) Amount	23,500,000		23,600,000
Income Tax Expense Benefit Continuing Operations Discrete Items				84,100,000
Pre-Tax Losses Without Tax Benefits Recognized				204,100,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	3,900,000		3,900,000
Income Tax Expense (Benefit)	$ (6,944,000)	$ 1,253,000	$ (823,000)	32,786,000
United States
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount				(10,600,000)
GERMANY
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount				(6,000,000)
SWITZERLAND
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount				$ (78,900,000)