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Leases - Components of Lease Expense (Details) - USD ($)
$ in Thousands
9 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Leases [Abstract]    
Operating lease expense $ 12,723 $ 15,318
Short-term lease expense 545 904
Variable lease expense 6,663 2,425
Total lease expense $ 19,931 $ 18,647