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Basis of Presentation and Significant Accounting Policies (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Sep. 30, 2024
Sep. 30, 2023
Dec. 31, 2023
Accounting Policies [Abstract]          
Allowance for doubtful accounts against contracts receivable $ 0   $ 0   $ 0
Contract receivables, retainage 48,968,000   48,968,000   56,855,000
Contract liabilities, retainage $ 93,837,000   $ 93,837,000   86,895,000
Percentage of receivables estimated to be collected in next fiscal year 70.00%   70.00%    
Decrease in contract asset retainage     $ 8,864,000    
Increase in contract liability retainage     119,371,000    
Contract liability recognized during period $ 66,453,000   $ 301,517,000    
Contract liability revenue recognized   $ 25,515,000   $ 172,941,000  
Ownership interest in subsidiaries 50.00%   50.00%    
Restricted cash $ 0   $ 0   $ 0