CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 144,307	$ 50,656	$ 478,937	$ 171,498
Postretirement benefits:
Amortization of prior service costs/actuarial gain	(18)	(20)	(54)	(59)
Income tax expense	4	4	11	12
Total comprehensive income	$ 144,293	$ 50,640	$ 478,894	$ 171,451