Lease Accounting - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	May 01, 2021	May 02, 2020
Lease costs
Net (gains) losses on lease modifications	$ (2,145)	$ 456
Total lease costs	70,223	79,114
COVID-19 | Europe
Lease costs
Rent concessions from landlord	6,100	2,700
Cost of product sales
Lease costs
Operating lease costs	46,684	55,369
Amortization of leased assets	11	12
Variable lease costs	15,739	14,348
Short-term lease costs	105	239
Selling, general and administrative expenses
Lease costs
Operating lease costs	6,357	5,176
Amortization of leased assets	1,361	864
Variable lease costs	574	579
Short-term lease costs	1,171	1,789
Net (gains) losses on lease modifications
Lease costs
Net (gains) losses on lease modifications	(2,145)	456
Interest expense
Lease costs
Interest on lease liabilities	$ 366	$ 282