v3.26.1
Per Share Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]        
Undistributed Earnings (Loss) Available to Common Shareholders, Basic $ 152,879 $ 76,670 $ 353,676 $ 202,567
Noncontrolling Interest, Change in Redemption Value     (849) (2,142)
Noncontrolling Interest, Period Increase (Decrease) $ (95) $ (560) $ (646) $ (1,618)
Weighted Average Number of Shares Outstanding, Basic 19,924,154 19,856,289 19,912,529 19,938,694
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements 273,553 247,968 274,365 249,341
Weighted Average Number of Shares Outstanding, Diluted 20,197,707 20,104,257 20,186,894 20,188,035
Earnings Per Share, Basic $ 7.67 $ 3.86 $ 17.76 $ 10.16
Earnings Per Share, Diluted $ 7.57 $ 3.81 $ 17.52 $ 10.03
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net Income (Loss) Available to Common Stockholders, Basic $ 152,974 $ 77,230 $ 354,322 $ 204,185
Phantom Share Units (PSUs) [Member]        
Earnings Per Share [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0 0 50 20,552
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 0 0 50 20,552