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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Statement of Comprehensive Income [Abstract]        
Net income $ 18,487 $ 14,716 $ 112,840 $ 87,045
Change in unfunded benefit obligation for pension and other postretirement benefit plans - net of taxes of ($3), ($5) ($5) and ($15), respectively (9) (19) (18) (56)
Comprehensive income $ 18,478 $ 14,697 $ 112,822 $ 86,989