Benefit Plans - Reconciliation of Benefit Obligation (Details) - Postretirement Benefits - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Beginning balance - Bargaining Plan projected benefit obligation	$ 55,299	$ 65,156
Service cost	1,085	1,458	$ 1,516
Interest cost	2,761	1,923	1,772
Plan participants’ contributions	767	657
Actuarial loss (gain)	7,986	(10,138)
Benefits paid	(4,070)	(3,757)
Ending balance - Bargaining Plan projected benefit obligation	$ 63,828	$ 55,299	$ 65,156