v3.26.1
EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 6 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Mar. 31, 2026
Mar. 31, 2025
Earnings Per Share [Abstract]            
Net income $ 218,912 $ 122,490 $ 204,287 $ 131,319 $ 341,402 $ 335,606
Basic earnings per share            
Weighted average shares of common stock outstanding-basic (in shares) 100,849   100,291   100,775 100,073
Basic earnings per common share (usd per share) $ 2.17   $ 2.04   $ 3.39 $ 3.35
Diluted earnings per common share            
Weighted average shares of common stock outstanding-basic (in shares) 100,849   100,291   100,775 100,073
Incremental shares (in shares) 633   642   613 632
Weighted average shares of common stock outstanding-diluted (in shares) 101,482   100,933   101,388 100,705
Diluted earnings per common share (usd per share) $ 2.16   $ 2.02   $ 3.37 $ 3.33