v3.26.1
EARNINGS PER SHARE (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]                
Net income (loss) $ 9,689 $ 218,912 $ 122,490 $ (15,051) $ 204,287 $ 131,319 $ 351,091 $ 320,555
Basic earnings (loss) per share                
Weighted average shares of common stock outstanding-basic (in shares) 101,092,000     100,373,000     100,881,000 100,173,000
Basic earnings (loss) per common share (usd per share) $ 0.10     $ (0.15)     $ 3.48 $ 3.20
Diluted earnings (loss) per common share                
Weighted average shares of common stock outstanding-basic (in shares) 101,092,000     100,373,000     100,881,000 100,173,000
Incremental shares (in shares) 688,000     0     645,000 640,000
Weighted average shares of common stock outstanding-diluted (in shares) 101,780,000     100,373,000     101,526,000 100,813,000
Diluted earnings (loss) per common share (usd per share) $ 0.10     $ (0.15)     $ 3.46 $ 3.18
Anti-dilutive shares excluded from the calculation of diluted (loss) per share (in shares) 0     662,851     0 0