Condensed Consolidated Statements of Comprehensive Income - 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)	$ 37,724	$ 50,821	$ 105,358	$ 142,019
Other comprehensive income (loss):
Foreign currency translation adjustments	(5,955)	4,576	1,494	39,962
Interest rate swap, net of tax	46	2,806	(1,458)	2,806
Interest rate caps, net of tax				(1,960)
Foreign exchange contracts, net of tax	887	(10)	874	(1,937)
Other comprehensive income (loss), net of tax	(5,022)	7,372	910	38,871
Total comprehensive income	$ 32,702	$ 58,193	$ 106,268	$ 180,890