Quarterly report pursuant to Section 13 or 15(d)

Contracts in Progress - Schedule of Costs in Excess of Billings and Billings in Excess of Costs on Uncompleted Contracts (Details)

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Contracts in Progress - Schedule of Costs in Excess of Billings and Billings in Excess of Costs on Uncompleted Contracts (Details) - USD ($)
$ in Millions
Jun. 30, 2023
Dec. 31, 2022
Revenue from Contract with Customer [Abstract]    
Costs and estimated earnings in excess of billings on uncompleted contracts – current $ 81.7 $ 50.0
Costs and estimated earnings in excess of billings on uncompleted contracts – noncurrent 7.5 17.3
Billings in excess of costs and estimated earnings on uncompleted contracts – current (19.5) (25.5)
Billings in excess of costs and estimated earnings on uncompleted contracts – noncurrent (2.4) (0.9)
Costs in excess of billings, current and noncurrent $ 67.3 $ 40.9