Accumulated Other Comprehensive Loss - Defined Benefit Pension (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	$ 1,657,269	$ 1,547,691	$ 1,638,286	$ 1,430,312
Balance at end of period	1,702,895	1,631,632	1,702,895	1,631,632
Accumulated Other Comprehensive (Loss) Income
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance at beginning of period	(6,909)	(13,068)	(7,217)	0
Other comprehensive loss before reclassifications	0	3,823	0	(9,840)
Amounts reclassified from AOCL	154	48	462	643
Balance at end of period	$ (6,755)	$ (9,197)	$ (6,755)	$ (9,197)