Consolidated Statements Of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 68,978	$ 61,398	$ 249,810	$ 199,937
Other comprehensive income (loss), net of tax:
Hedge gain (loss) arising during the period, net of tax of $0 million and $0 million in the third quarter of 2024 and 2023, respectively, and $0 million and $0 million in the first nine months of 2024 and 2023, respectively	2,292	(521)	(2,787)	(14,005)
Foreign currency translation adjustment, net of tax of $0 for each period	(9,344)	1,405	538	70,181
Change in pension benefit, net of tax of $0.0 million and $0.0 million in the third quarter of 2024 and 2023, respectively, and $(0.1) million and $0.0 million in the first nine months of 2024 and 2023, respectively	112	(24)	106	(356)
Other comprehensive income (loss)	(6,940)	860	(2,143)	55,820
Comprehensive income	$ 62,038	$ 62,258	$ 247,667	$ 255,757