Annual report pursuant to Section 13 and 15(d)

Contracts in Progress - Schedule of Cost and Billings on Uncompleted Construction Type Long Term Contracts or Programs (Details)

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Contracts in Progress - Schedule of Cost and Billings on Uncompleted Construction Type Long Term Contracts or Programs (Details) - Uncompleted Contracts - USD ($)
$ in Millions
Dec. 31, 2023
Dec. 31, 2022
Disaggregation of Revenue [Line Items]    
Costs incurred on contracts (from inception to completion) $ 324.5 $ 249.6
Estimated earnings 208.7 163.1
Contracts in progress 533.2 412.7
Less: billings to date (511.3) (371.8)
Costs in excess of billings uncompleted construction type contracts $ 21.9 $ 40.9