Leases - Cash flow and other information (Details) - USD ($) $ in Thousands	6 Months Ended
	Aug. 01, 2020	Aug. 03, 2019
Supplemental cash flow and other information related to operating leases
Cash paid for operating leases	$ 18,920	$ 25,174
Right of use assets obtained in exchange for new operating lease liabilities	$ 27,044	$ 42,357
Weighted average remaining lease term - operating leases	5 years 3 months 10 days	4 years 4 months 2 days
Weighted average discount rate - operating leases (as a percent)	3.29%	3.75%