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Equipment Acquisitions and Dispositions - Schedule of Gain on Sale of Windcat Workboats (Details) - USD ($)
$ in Thousands
12 Months Ended
Jan. 12, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Property Plant And Equipment [Line Items]        
Total Net Proceeds   $ 30,137 $ 20,674 $ 55,321
Windcat Workboats        
Property Plant And Equipment [Line Items]        
Total Proceeds Received $ 43,797      
Transactions Fees and other Costs 1,562      
Cash Sold 3,520      
Total Net Proceeds 38,715      
Less: Net Equity in Windcat Workboats, net of cash sold 15,790      
Less: January Income on Discontinued Operations 169      
Gain on Sale of Windcat Workboats $ 22,756