Lease Accounting - Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020
Assets
Operating	$ 789,742	$ 851,990
Finance	20,933	15,972
Total lease assets	810,675	867,962
Current:
Operating	227,209	192,066
Finance	4,414	2,273
Noncurrent:
Operating	689,251	714,079
Finance	17,748	14,262
Total lease liabilities	$ 938,622	$ 922,680