CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Statement of Comprehensive Income [Abstract]
Net income	$ 175,323	$ 144,307	$ 712,276	$ 478,937
Postretirement benefits:
Amortization of prior service costs/actuarial gain	(15)	(18)	(44)	(54)
Income tax expense	3	4	9	11
Total comprehensive income	$ 175,311	$ 144,293	$ 712,241	$ 478,894

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details