Pension Plans (Details) - USD ($) $ in Thousands	1 Months Ended		9 Months Ended		12 Months Ended
	Jul. 31, 2024	Jun. 30, 2024	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pension Plans
Granted special financial assistance funds		$ 3,400,000
Received special financial assistance funds	$ 3,400,000
Multi-employer defined benefit pension plan | Consenting agreement entered with local bargaining union
Pension Plans
Estimated liability upon withdrawal from plan					$ 102,200	$ 96,000	$ 104,300
Pension expense			$ 2,579	$ 2,785	3,516	3,510
Surcharges			$ 909	$ 982	$ 1,239	$ 1,237
Percentage of annual compounded surcharge for rehabilitation during year 2012 to 2020			5.00%