v3.25.1
Per Share Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2025
Mar. 31, 2024
Earnings Per Share [Abstract]        
Undistributed Earnings (Loss) Available to Common Shareholders, Basic $ 70,738 $ 46,968 $ 125,897 $ 85,142
Noncontrolling Interest, Change in Redemption Value $ 86   (1,401) (11,549)
Noncontrolling Interest, Period Increase (Decrease)     $ (1,058) $ (8,723)
Weighted Average Number of Shares Outstanding, Basic 19,969,618 20,227,342 19,979,896 20,213,421
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements 243,824 252,413 249,981 236,270
Weighted Average Number of Shares Outstanding, Diluted 20,213,442 20,479,755 20,229,877 20,449,691
Earnings Per Share, Basic $ 3.54 $ 2.32 $ 6.30 $ 4.21
Earnings Per Share, Diluted $ 3.50 $ 2.29 $ 6.22 $ 4.16
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Net Income (Loss) Available to Common Stockholders, Basic $ 70,652 $ 52,909 $ 126,955 $ 93,865
Stockholders' Equity, Period Increase (Decrease) $ 86 $ (5,941) $ (1,058) $ (8,723)
Phantom Share Units (PSUs) [Member]        
Earnings Per Share [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 16,635 0 33,179 21,584
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 16,635 0 33,179 21,584