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Special Charges, Net - Special Charges (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Special charges, net |  |  |
Employee termination costs | $ 2.4 | $ 0.8 | $ 0.1
Non-cash asset write-downs | 0.9 | 0.0 | 0.3
Total Special Charges | 3.6 | 0.8 | 0.4
Operating Segments | External revenues |  |  |
Special charges, net |  |  |
Non-cash asset write-downs | 0.7 | 0.0 | 0.0
Total Special Charges | 1.9 | 0.1 | 0.1
Operating Segments | Detection and Measurement reportable segment |  |  |
Special charges, net |  |  |
Non-cash asset write-downs | 0.2 | 0.0 | 0.3
Total Special Charges | 1.7 | 0.7 | 0.3
Corporate |  |  |
Special charges, net |  |  |
Non-cash asset write-downs | 0.0 | 0.0 | 0.0
Total Special Charges | 0.0 | 0.0 | 0.0
Employee Termination Costs |  |  |
Special charges, net |  |  |
Employee termination costs | 2.4 | 0.8 | 0.1
Employee Termination Costs | Operating Segments | External revenues |  |  |
Special charges, net |  |  |
Employee termination costs | 1.2 | 0.1 | 0.1
Employee Termination Costs | Operating Segments | Detection and Measurement reportable segment |  |  |
Special charges, net |  |  |
Employee termination costs | 1.2 | 0.7 | 0.0
Employee Termination Costs | Corporate |  |  |
Special charges, net |  |  |
Employee termination costs | 0.0 | 0.0 | 0.0
Facility Consolidation Costs |  |  |
Special charges, net |  |  |
Facility consolidation costs | 0.3 | 0.0 | 0.0
Facility Consolidation Costs | 0.3 | 0.0 | 0.0
Facility Consolidation Costs | Operating Segments | External revenues |  |  |
Special charges, net |  |  |
Facility Consolidation Costs | 0.0 | 0.0 | 0.0
Facility Consolidation Costs | Operating Segments | Detection and Measurement reportable segment |  |  |
Special charges, net |  |  |
Facility Consolidation Costs | 0.3 | 0.0 | 0.0
Facility Consolidation Costs | Corporate |  |  |
Special charges, net |  |  |
Facility Consolidation Costs | $ 0.0 | $ 0.0 | $ 0.0

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- Definition Amount charged against earnings in the period for incurred and estimated costs associated with an exit from business activities or restructuring pursuant to a duly authorized plan, excluding asset retirement obligations. Such costs include charges associated with employee terminations, lease terminations, asset impairments, etc. + References No definition available. + Details
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