Contracts in Progress - Schedule of Uncompleted Contracts (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Costs and estimated earnings in excess of billings on uncompleted contracts – current	$ 98.9	$ 67.0
Contract with customer, asset (liability), net	82.3	55.4
Uncompleted Contracts
Disaggregation of Revenue [Line Items]
Costs and estimated earnings in excess of billings on uncompleted contracts – current	98.9	67.0
Costs and estimated earnings in excess of billings on uncompleted contracts – non-current	10.5	20.2
Billings in excess of costs and estimated earnings on uncompleted contracts – current	(26.6)	(31.0)
Billings in excess of costs and estimated earnings on uncompleted contracts – non-current	(0.5)	(0.8)
Contract with customer, asset (liability), net	$ 82.3	$ 55.4

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

Mirion Technologies, Inc. 10-Q