CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ (15,724)	$ (11,235)
Other comprehensive income (loss), net of tax
Net investment hedge currency translation adjustment, net of tax effects of $4,576 and $19,708 for the three months ended December 31, 2023 and 2022, respectively	(13,368)	(57,127)
Foreign currency translation adjustments	46,494	77,414
Changes in unrealized gains on marketable securities, net of tax effects of $864 and $537 for the three months ended December 31, 2023 and 2022, respectively	2,524	1,555
Actuarial loss in pension plans, net of tax effects of $2 and $0 for the three months ended December 31, 2023 and 2022, respectively	(8)
Total other comprehensive income, net of tax	35,642	21,842
Comprehensive income	$ 19,918	$ 10,607