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Debt and Available Credit Facilities (Details) - USD ($)
 3 Months Ended 12 Months Ended
Nov. 30, 2022
Jan. 31, 2023
Apr. 30, 2024
Apr. 30, 2023
Apr. 30, 2022
Components of Total Debt Outstanding [Abstract]          
Short-term portion of long-term debt     $ 7,500,000 $ 5,000,000  
Long-term debt     767,096,000 743,292,000  
Total debt     774,596,000 748,292,000  
Unamortized debt issuance costs     600,000 700,000  
Annual Maturities of Long-term Debt, Including Short-term Portion [Abstract]          
2025     7,500,000    
2026     17,500,000    
2027     30,000,000    
2028     720,178,000    
Total     775,178,000    
Debt and Available Credit Facilities [Abstract]          
Payments of debt issuance costs     0 4,493,000 $ 0
Amended and Restated RCA          
Debt and Available Credit Facilities [Abstract]          
Amortization expense of the lender and non-lender fees in interest expense     1,200,000 1,100,000 $ 1,100,000
Term Loan A Facility | Amended and Restated RCA          
Components of Total Debt Outstanding [Abstract]          
Long-term debt     184,418,000 191,757,000  
Debt and Available Credit Facilities [Abstract]          
Term of credit facility 5 years        
Debt instrument, face amount $ 200,000,000        
Debt issuance costs, line of credit arrangements, net   $ 800,000      
Debt issuance costs line of credit arrangements net lender fees   800,000      
Debt issuance costs, non-lender fees   100,000      
Term loan A - Amended and Restated CA | Amended and Restated RCA          
Components of Total Debt Outstanding [Abstract]          
Long-term debt     582,678,000 $ 551,535,000  
Debt and Available Credit Facilities [Abstract]          
Term of credit facility 5 years        
Line of credit facility, maximum borrowing capacity $ 1,115,000,000        
Payments of debt issuance costs   4,500,000      
Debt issuance costs, line of credit arrangements, net   5,800,000      
Write off of deferred debt issuance cost   (200,000)      
Term loan A - Amended and Restated CA | Amended and Restated RCA | Secured Overnight Financing Rate (SOFR) | Minimum          
Debt and Available Credit Facilities [Abstract]          
Debt instrument, basis spread on variable rate 0.10%        
Term loan A - Amended and Restated CA | Amended and Restated RCA | Secured Overnight Financing Rate (SOFR) | Maximum          
Debt and Available Credit Facilities [Abstract]          
Debt instrument, basis spread on variable rate 0.25%        
Line of Credit          
Debt and Available Credit Facilities [Abstract]          
Line of credit facility, maximum borrowing capacity     1,493,500,000    
Line of credit facility, remaining borrowing capacity     $ 718,300,000    
Weighted average interest rate on total debt outstanding during the period     5.52% 4.05%  
Debt, weighted average interest rate     6.07% 4.76%  
Revolving Credit Facility Through May 2024 | Amended and Restated RCA          
Debt and Available Credit Facilities [Abstract]          
Term of credit facility     18 months    
Line of credit facility, maximum borrowing capacity $ 185,000,000        
Debt issuance costs, line of credit arrangements, net   $ 5,000,000      
Revolving Credit Facility Through November 2027 | Amended and Restated RCA          
Debt and Available Credit Facilities [Abstract]          
Term of credit facility     5 years    
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA          
Debt and Available Credit Facilities [Abstract]          
Optional credit limit increase available on request 500,000,000        
Minimum increments in which optional credit limit increase may be requested $ 50,000,000        
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA | Minimum          
Debt and Available Credit Facilities [Abstract]          
Line of credit facility fee percentage 0.15%        
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA | Maximum          
Debt and Available Credit Facilities [Abstract]          
Line of credit facility fee percentage 0.25%        
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA | SOFR SONIA And EURIBOR Based Rates | Minimum          
Debt and Available Credit Facilities [Abstract]          
Applicable margin 0.98%        
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA | SOFR SONIA And EURIBOR Based Rates | Maximum          
Debt and Available Credit Facilities [Abstract]          
Applicable margin 1.50%        
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA | Base Rate          
Debt and Available Credit Facilities [Abstract]          
Margin rate over reference rate used in determining base rate 0.50%        
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA | Base Rate | Minimum          
Debt and Available Credit Facilities [Abstract]          
Applicable margin 0.00%        
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA | Federal Funds Effective Rate | Maximum          
Debt and Available Credit Facilities [Abstract]          
Applicable margin     0.50%    
Syndicate Bank Group led by Bank of America | Term loan A - Amended and Restated CA | Amended and Restated RCA | Daily Secured Overnight Financing Rate SOFR          
Debt and Available Credit Facilities [Abstract]          
Margin rate over reference rate used in determining base rate 1.00%        
Other Credit Facilities | Line of Credit          
Debt and Available Credit Facilities [Abstract]          
Line of credit facility, maximum borrowing capacity     $ 1,000,000    
Outstanding borrowings under revolving credit facilities     $ 0 $ 0