Accumulated Other Comprehensive Loss - Schedule of Reclassification Out of AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Interest expense	$ (108,347)	$ (104,624)	$ (80,683)
Income taxes	17,589	10,213	6,195
Other income	41,367	33,454	3,260
Net income	281,108	414,707	$ 367,489
Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Net income	(452)	(366)
Reclassification adjustment for loss on derivative instruments included in net income | Reclassification out of Accumulated Other Comprehensive Income | Interest Rate Contract
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Interest expense	0	(96)
Income taxes	0	15
Net income	0	(81)
Amortization of postretirement liability losses included in net periodic benefit credit | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Income taxes	145	78
Other income	577	320
Net income	(432)	(242)
Reclassification adjustment on available-for-sale investments included in net income | Reclassification out of Accumulated Other Comprehensive Income
Reclassification Adjustment out of Accumulated Other Comprehensive Loss [Line Items]
Income taxes	5	11
Other income	25	54
Net income	$ (20)	$ (43)