Business Segment Information - Schedule Of Geographic Information Net Sales (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Net Sales	$ 857,502	$ 715,440	$ 730,471
United States
Net Sales	603,172	516,959	529,400
Asia
Net Sales	122,400	92,300	96,300
Europe
Net Sales	72,400	53,500	51,300
Canada
Net Sales	31,200	27,000	31,700
India
Net Sales	10,300	12,400	10,300
Other
Net Sales	$ 18,000	$ 13,200	$ 11,500