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Leases - Additional Information (Detail)
$ in Thousands
3 Months Ended
Apr. 30, 2020
USD ($)
Store
Apr. 30, 2019
USD ($)
Leases [Abstract]    
Operating lease costs $ 68,010 $ 66,248
Variable lease cost 28,440 $ 32,877
Lease commitments for executed but not yet commenced leases $ 47,956  
Number of lease commitment not yet commenced | Store 6