Postretirement Benefits - Schedule of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Retirement Benefits [Abstract]
Service cost—benefits earned during the period	$ 24,898	$ 21,568	$ 34,624
Interest cost on projected benefit obligation	33,123	31,367	24,445
Expected return on assets	(42,580)	(38,625)	(35,539)
Prior service cost	1,071	1,075	1,077
Recognition of actuarial gain (loss)	54	160	(12,433)
Net periodic benefit cost	$ 16,458	$ 15,225	$ 37,040
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Amortization of pension costs	Amortization of pension costs	Amortization of pension costs