CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 1,183,370	$ 411,778	$ (711,777)
Postretirement benefits:
Actuarial gain	482	62	39
Amortization of prior service costs	292	369	369
Income tax expense	(157)	(102)	(99)
Total comprehensive income (loss)	$ 1,183,987	$ 412,107	$ (711,468)