Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Consolidated net income (loss)	$ 8,225	$ (13,941)	$ 55,269	$ 64,695
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments	(7,744)	(6,900)	(14,763)	(8,797)
Benefit plans	0	498	0	301
Total other comprehensive income (loss), net of tax	(7,744)	(6,402)	(14,763)	(8,496)
Comprehensive income (loss)	481	(20,343)	40,506	56,199
Less: Comprehensive income (loss) attributable to noncontrolling interest in subsidiaries, net of tax	1,346	(3,314)	6,545	15,947
Comprehensive income (loss) attributable to common stockholders	$ (865)	$ (17,029)	$ 33,961	$ 40,252