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Leases - Additional Information (Detail)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 31, 2020
USD ($)
Oct. 31, 2019
USD ($)
Oct. 31, 2020
USD ($)
Store
Oct. 31, 2019
USD ($)
Leases [Abstract]        
Operating lease costs $ 69,048 $ 68,915 $ 206,241 $ 202,990
Variable lease cost 19,285 $ 30,613 70,879 $ 95,044
Lease commitments for executed but not yet commenced leases $ 8,813   $ 8,813  
Number of lease commitment not yet commenced | Store     5