Quarterly report pursuant to Section 13 or 15(d)

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

v3.21.2
Long-Term Debt - Schedule of Long-term Debt, at Amortized Cost (Detail) - USD ($)
$ in Thousands
Jul. 31, 2021
Apr. 30, 2021
Debt Instrument [Line Items]    
Long-term borrowings, net of unamortized discount and debt issuance costs $ 394,962 $ 394,794
4.625% Senior Unsecured Notes due 2027    
Debt Instrument [Line Items]    
Less: Unamortized discount and issuance costs (5,038) (5,206)
Long-term borrowings, net of unamortized discount and debt issuance costs 394,962 394,794
4.625% Senior Unsecured Notes due 2027 | Senior Unsecured Notes    
Debt Instrument [Line Items]    
Long-term debt $ 400,000 $ 400,000