INTERIM CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (30,578)	$ 88,897
Other comprehensive income (loss)
Loss related to defined benefit pension plans	(227)	(116)
Income tax recovery	0	62
Loss related to defined benefit pension plans, net of tax	(227)	(54)
Foreign currency translation adjustments	18,650	(10,522)
Other comprehensive income (loss), net of taxes	18,423	(10,576)
Total comprehensive income (loss)	$ (12,155)	$ 78,321