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Contingencies - Schedule of Warranty Reserves (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Movement in Standard Product Warranty Accrual [Roll Forward]        
Balance at beginning of period $ 11,554 $ 12,129 $ 12,717 $ 13,046
Warranty provision 1,521 2,387 4,766 6,499
Warranty expenditures (2,162) (2,681) (6,570) (7,710)
Balance at end of period $ 10,913 $ 11,835 $ 10,913 $ 11,835