Employee and Retiree Benefit Plans - Schedule of Components of Net Periodic Benefit Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 7,094	$ 7,042	$ 6,542
Interest cost	33,798	33,554	34,140
Expected return on plan assets	(35,511)	(33,427)	(32,839)
Amortization of prior service cost (credit)	1,967	2,316	620
Recognized actuarial (gain) loss	7,262	9,438	9,776
Net periodic benefit cost (credit)	14,610	18,923	18,239
Other pension costs	276	251	219
Total net periodic benefit cost (credit)	14,886	19,174	18,458
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	382	436	495
Interest cost	3,261	2,923	3,241
Expected return on plan assets	0	0	0
Amortization of prior service cost (credit)	(532)	(532)	(532)
Recognized actuarial (gain) loss	(3,182)	(3,586)	(3,512)
Net periodic benefit cost (credit)	(71)	(759)	(308)
Other pension costs	0	0	0
Total net periodic benefit cost (credit)	$ (71)	$ (759)	$ (308)