Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net loss	$ (6,582)	$ (1,470)	$ (159,186)	$ (17,632)
Other comprehensive income (loss), net of tax
Net investment hedge currency translation adjustment, net of tax effects of $(109) and $2,728 for the three and nine months ended June 30, 2024, respectively, and $(75) and $(24,315) for the three and nine months ended June 30, 2023, respectively	317	(218)	(7,971)	(70,478)
Foreign currency translation adjustments	(4,000)	1,876	21,725	113,140
Changes in unrealized gains on marketable securities, net of tax effects of $(179) and $(1,300) for the three and nine months ended June 30, 2024, respectively, and $23 and $1,418 for the three and nine months ended June 30, 2023, respectively	523	67	3,799	4,109
Actuarial loss on pension plans, net of tax effects of $3 and $7 during the three and nine months ended June 30, 2024, respectively, and $0 during each of the three and nine months ended June 30, 2023	(7)	0	(22)	0
Total other comprehensive income (loss), net of tax	(3,167)	1,725	17,531	46,771
Comprehensive income (loss)	$ (9,749)	$ 255	$ (141,655)	$ 29,139