Benefit Plans - Change in Plan Assets (Details) - Pension Plans - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value - Beginning balance	$ 261,942
Plan assets at fair value - Ending balance		$ 261,942
Bargaining Plan
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Plan assets at fair value - Beginning balance	38,635	36,944
Actual return on plan assets	5,495	(9,314)
Employer contributions	4,300	12,000
Benefits and expenses paid	(1,109)	(995)
Plan assets at fair value - Ending balance	$ 47,321	$ 38,635