Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Details)

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Stockholders' Equity - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Sep. 30, 2023
Class Of Stock [Line Items]      
Treasury stock (in shares) 694,414   660,063
Repurchase of common stock (in shares) 34,351 38,990  
Payment for repurchase of common stock $ 862 $ 988  
Treasury stock market share price (in usd per share) $ 25.09 $ 25.35  
Series E Convertible Preferred Stock      
Class Of Stock [Line Items]      
Preferred stock, shares issued (in shares) 47,840   47,840