Acquisitions (Schedule of Assets Acquired and Liabilities Assumed) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Aug. 31, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Goodwill	$ 791,468		$ 772,559		$ 805,333
P M Controls [Member]
Business Acquisition [Line Items]
Accounts receivable		$ 4,334
Inventories		2,464
Other current assets		386
Property, plant, and equipment		2,488
Goodwill		8,705		$ 8,705
Intangible assets		8,874		$ 8,874
Total assets acquired		27,251
Other current liabilities		(2,703)
Deferred income tax liabilities		(1,842)
Other noncurrent liabilities		(1,285)
Total liabilities assumed		(5,830)
Net assets acquired		$ 21,421