CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 145,192	$ (75,491)	$ 236,047	$ (284,785)
Other comprehensive (loss) income:
Foreign currency translation adjustments, net of tax	(8,692)	(4,970)	(27,680)	(1,959)
Actuarial (loss) gain on defined severance benefits, net of tax	(9,684)	34,196	(8,828)	38,007
Total other comprehensive (loss) income	(18,376)	29,226	(36,508)	36,048
Comprehensive income (loss)	$ 126,816	$ (46,265)	$ 199,539	$ (248,737)