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Leases - Components of Net Lease Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2021
Aug. 01, 2020
Jul. 31, 2021
Aug. 01, 2020
Leases [Abstract]        
Operating lease cost $ 49,265 $ 42,273 $ 96,794 $ 82,621
Variable lease cost 14,020 10,619 27,650 21,962
Net lease cost* $ 63,285 $ 52,892 $ 124,444 $ 104,583