Acquisitions (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Aug. 31, 2022	Dec. 31, 2022	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Goodwill			$ 791,468		$ 772,559	$ 805,333
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2024			33,260
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2025			28,011
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2026			28,001
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2027			27,954
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2028			27,353
Future amortization expense associated with the acquired intangibles			391,056
P M Controls [Member]
Business Acquisition [Line Items]
Total cash consideration	$ 22,890
Goodwill	8,705			$ 8,705
Measurement period adjustment reduced intangible assets		$ (1,042)
Working capital adjustment resulting in reduction of goodwill		$ (863)
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2024			865
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2025			757
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2026			757
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2027			757
Future amortization expense associated with the acquired intangibles for fiscal year ended September 30, 2028			$ 757
P M Agreements [Member] | P M Controls [Member]
Business Acquisition [Line Items]
Total cash consideration	$ 21,421