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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2026
Mar. 31, 2025
Income Statement [Abstract]        
Net unrealized holding gains (losses) on available-for-sale securities, tax $ (45) $ 20 $ (45) $ (22)
Amortization and unrealized gains (losses) on interest rate agreements, tax $ (1,366) $ (1,622) $ (2,704) $ 1,870