Debt - Interest Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 01, 2021	Aug. 02, 2020	Aug. 01, 2021	Aug. 02, 2020
Debt Instrument [Line Items]
Total amortization of debt discount and debt issuance costs			$ 15,154	$ 14,125
Convertible Senior Notes
Debt Instrument [Line Items]
Amortization of debt discount	$ 7,085	$ 6,703	13,845	13,171
Amortization of debt issuance costs	513	486	1,003	954
Total amortization of debt discount and debt issuance costs	7,598	7,189	14,848	14,125
Contractual interest expense	181	181	356	358
Total interest expense related to the Notes	$ 7,779	$ 7,370	$ 15,204	$ 14,483
Effective interest rate of the liability component	5.60%	5.60%	5.60%	5.60%