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Contingencies - Schedule of Warranty Reserves (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Movement in Standard Product Warranty Accrual [Roll Forward]        
Balance at beginning of period $ 11,202 $ 11,554 $ 13,564 $ 12,717
Warranty provision 2,494 1,521 5,994 4,766
Warranty expenditures (1,535) (2,162) (7,397) (6,570)
Balance at end of period $ 12,161 $ 10,913 $ 12,161 $ 10,913