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Leases - Other information (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 31, 2022
Jan. 31, 2021
Leases [Abstract]    
Weighted average remaining lease term 5 years 3 months 18 days  
Weighted average discount rate 8.40%  
Cash paid for amounts included in the measurement of operating lease liabilities $ 60.1 $ 108.9
Right-of-use assets obtained in exchange for lease obligations $ 30.8 $ 56.6