Income Taxes (Details) $ in Thousands	6 Months Ended
	Aug. 01, 2020 USD ($)
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ (36,500)
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	47,600
Income Tax Expense Benefit Continuing Operations Discrete Items	84,100
Pre-Tax Losses Without Tax Benefits Recognized	204,100
United States
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(10,600)
GERMANY
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	(6,000)
SWITZERLAND
Valuation Allowance [Line Items]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ (78,900)