v3.26.1
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Statement of Comprehensive Income [Abstract]        
Net income $ 195,323 $ 237,578 $ 536,953 $ 334,630
Postretirement benefits:        
Amortization of prior service costs/actuarial gain (14) (18) (29) (36)
Income tax expense 3 3 6 7
Total comprehensive income $ 195,312 $ 237,563 $ 536,930 $ 334,601