CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS (UNAUDITED) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (11,126)	$ (12,134)	$ (31,084)	$ (52,598)
Other comprehensive income (loss) before tax:
Foreign currency translation adjustment	4,509	(3,366)	1,317	(1,311)
Defined benefit pension plans:
Amortization of prior service cost	8	0	24	0
Amortization of net actuarial loss	82	0	240	0
Other comprehensive income (loss), before tax	4,599	(3,366)	1,581	(1,311)
Tax benefit (provision) attributable to other comprehensive income (loss)	83	11	78	(35)
Other comprehensive income (loss), net of tax	4,682	(3,355)	1,659	(1,346)
Total comprehensive loss	$ (6,444)	$ (15,489)	$ (29,425)	$ (53,944)