CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 266,340	$ 871,142	$ 1,183,370
Postretirement benefits:
Actuarial gain (loss)	28	(12)	482
Prior service cost	0	(296)	0
Amortization of prior service costs/actuarial gain	(74)	(41)	292
Income tax expense (benefit)	10	(63)	(157)
Total comprehensive income	$ 266,304	$ 871,322	$ 1,183,987