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Shareholders' Equity - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
Sep. 30, 2024
Sep. 30, 2023
Equity [Abstract]    
Treasury stock, shares 7,354,237 7,267,021
Shares approved to repurchase 100,000,000  
Aggregate purchase price $ 150.8  
Closing stock price $ 35.27  
Remaining shares available for future purchases under share repurchase program 2,800,000