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Leases - Additional Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jan. 31, 2023
Jan. 31, 2022
Jan. 31, 2023
Jan. 31, 2022
Apr. 30, 2022
Leases [Abstract]          
Right of use assets $ 9,563   $ 9,563   $ 7,573
Operating cash paid to settle lease liabilities     $ 1,652 $ 1,515  
Remaining lease term (in years)     9 years    
Option to extend, term (in years)     5 years    
Option to terminate, term (in years)     1 year    
Operating lease, expense 825 $ 754 $ 2,528 2,309  
Operating lease, short term, expense $ 199 $ 245 $ 876 $ 794  
Weighted average remaining lease term, operating lease (in years) 5 years 2 months 12 days   5 years 2 months 12 days    
Weighted average discount rate, operating lease 5.00%   5.00%    
Weighted average remaining lease term, finance lease (in years) 3 years 3 months 18 days   3 years 3 months 18 days    
Weighted average discount rate, finance lease 6.90%   6.90%