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
Mar. 31, 2022
Dec. 31, 2021
Revenue from Contract with Customer [Abstract]    
Costs and estimated earnings in excess of billings on uncompleted contracts – current $ 60.7 $ 56.3
Costs and estimated earnings in excess of billings on uncompleted contracts – noncurrent 6.3 6.5
Billings in excess of costs and estimated earnings on uncompleted contracts – current (16.2) (17.6)
Billings in excess of costs and estimated earnings on uncompleted contracts – noncurrent (2.2) (2.1)
Costs in excess of billings, current and noncurrent $ 48.6 $ 43.1