Postretirement Benefits - Schedule of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Retirement Benefits [Abstract]
Service cost	$ 21,568	$ 34,624	$ 31,672
Interest cost	31,367	24,445	21,957
Expected return on assets	(38,625)	(35,539)	(32,331)
Prior service cost	1,075	1,077	631
Recognition of actuarial gain (loss)	(160)	12,433	19,849
Net periodic benefit cost	$ 15,225	$ 37,040	$ 41,778
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