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Senior Notes (Tables)
 12 Months Ended
Apr. 30, 2025
Debt Disclosure [Abstract]  
Schedule of Long-Term Debt Instruments
The net carrying amount of the Senior Notes was as follows (in thousands):
As of April 30,
20252024
Principal$575,000 $575,000 
Unamortized debt issuance costs(5,271)(6,388)
Net carrying amount$569,729 $568,612 
The following table sets forth the interest expense recognized related to the Senior Notes (in thousands):
Year Ended April 30,
202520242023
Contractual interest expense$23,719 $23,719 $23,719 
Amortization of debt issuance costs1,117 1,069 1,023 
Total interest expense related to the Senior Notes$24,836 $24,788 $24,742