Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Schedule of Long-term Debt, at Amortized Cost (Detail)

v3.22.2
Long-Term Debt - Schedule of Long-term Debt, at Amortized Cost (Detail) - USD ($)
$ in Thousands
Apr. 30, 2022
Apr. 30, 2021
Debt Instrument [Line Items]    
Long-term borrowings, net of unamortized discount and debt issuance costs $ 395,477 $ 394,794
4.625% Senior Unsecured Notes due 2027    
Debt Instrument [Line Items]    
Less: Unamortized discount and issuance costs (4,523) (5,206)
Long-term borrowings, net of unamortized discount and debt issuance costs 395,477 394,794
4.625% Senior Unsecured Notes due 2027 | Senior Unsecured Notes    
Debt Instrument [Line Items]    
Long-term debt $ 400,000 $ 400,000