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Operating Leases (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jan. 31, 2021
Apr. 30, 2022
Apr. 30, 2021
ROU Assets and Lease Liabilities [Abstract]      
Operating lease ROU assets   $ 111,719 $ 121,430
Short-term portion of operating lease liabilities   20,576 22,440
Operating lease liabilities, non-current   132,541 $ 145,832
Increase (decrease) in ROU assets due to new leases as well as modifications and remeasurements to existing operating leases   10,400  
Increase (decrease) in operating lease liabilities due to new leases as well as modifications and remeasurements to existing operating leases   $ 10,300  
Restructuring charges $ 18,300