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Revenue (Schedule of Revenue Recognition Time) (Details) - USD ($)
$ in Thousands
 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2020
Disaggregation Of Revenue [Line Items]      
Net sales $ 2,382,790 $ 2,245,832 $ 2,495,665
Aerospace [Member]      
Disaggregation Of Revenue [Line Items]      
Net sales 1,519,322 1,404,117 1,590,963
Industrial [Member]      
Disaggregation Of Revenue [Line Items]      
Net sales 863,468 841,715 904,702
Point In Time [Member]      
Disaggregation Of Revenue [Line Items]      
Net sales 1,102,970 1,008,655 1,182,974
Point In Time [Member] | Aerospace [Member]      
Disaggregation Of Revenue [Line Items]      
Net sales 593,233 481,422 590,817
Point In Time [Member] | Industrial [Member]      
Disaggregation Of Revenue [Line Items]      
Net sales 509,737 527,233 592,157
Over Time [Member]      
Disaggregation Of Revenue [Line Items]      
Net sales 1,279,820 1,237,177 1,312,691
Over Time [Member] | Aerospace [Member]      
Disaggregation Of Revenue [Line Items]      
Net sales 926,089 922,695 1,000,146
Over Time [Member] | Industrial [Member]      
Disaggregation Of Revenue [Line Items]      
Net sales $ 353,731 $ 314,482 $ 312,545