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Contracts in Progress (Tables)
 12 Months Ended
Dec. 31, 2024
Revenue from Contract with Customer [Abstract]  
Schedule of Cost and Billings on Uncompleted Construction Type Long Term Contracts or Programs
Costs and billings on uncompleted construction-type contracts consist of the following (in millions):
December 31, 2024December 31, 2023
Costs incurred on contracts (from inception to completion)$409.3 $324.5 
Estimated earnings253.1 208.7 
Contracts in progress662.4 533.2 
Less: billings to date(607.0)(511.3)
$55.4 $21.9 
Schedule of Costs in Excess of Billings and Billings in Excess of Costs on Uncompleted Contracts
The carrying amounts related to uncompleted construction-type contracts are included in the accompanying consolidated balance sheets under the following captions (in millions):
December 31, 2024December 31, 2023
Costs and estimated earnings in excess of billings on uncompleted contracts – current$67.0 $48.7 
Costs and estimated earnings in excess of billings on uncompleted contracts – non-current (1)
20.2 18.2 
Billings in excess of costs and estimated earnings on uncompleted contracts – current (2)
(31.0)(41.1)
Billings in excess of costs and estimated earnings on uncompleted contracts – non-current (3)
(0.8)(3.9)
$55.4 $21.9 
(1)Included in other assets within the consolidated balance sheets.
(2)Included in deferred contract revenue – current within the consolidated balance sheets.
(3)Included in other liabilities within the consolidated balance sheets.