Pension Plan Contributions (Details) - Pension Plan [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	$ 626	$ 929	$ 2,063
Multiemployer Plan Year Allocation One [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost	$ 626
Multiemployer Plan Year Allocation Two [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost		$ 929
Multiemployer Plan Year Allocation Three [Member]
Multiemployer Plans [Line Items]
Multiemployer Plan, Employer Contribution, Cost			$ 2,063