CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Consolidated net loss	$ (27,630)	$ (15,828)
Foreign currency translation	(2,130)	1,164
Defined benefit plan:
Pension cost amortization	66	46
Foreign currency translation	(249)	37
Other comprehensive (loss) income, net of tax	(2,313)	1,247
Consolidated comprehensive loss	(29,943)	(14,581)
Less: Comprehensive loss attributable to non-controlling interests	0	(440)
Comprehensive loss attributable to common stockholders	$ (29,943)	$ (14,141)