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Special Charges, Net - Special Charges (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Special charges, net |  |  |  |  |
Employee termination costs |  |  | $ 0.1 | $ 1.0 | $ 1.0
Other cash costs, net |  |  | 0.0 | 0.0 | 1.0
Non-cash asset write-downs | $ 13.4 | $ 5.7 | 0.3 | 0.0 | 0.4
Total Special Charges |  |  | 0.4 | 1.0 | 2.4
Operating Segments | HVAC reportable segment |  |  |  |  |
Special charges, net |  |  |  |  |
Other cash costs, net |  |  | 0.0 | 0.0 | 0.0
Non-cash asset write-downs |  |  | 0.0 | 0.0 | 0.0
Total Special Charges |  |  | 0.1 | 0.1 | 0.5
Operating Segments | Detection and Measurement reportable segment |  |  |  |  |
Special charges, net |  |  |  |  |
Other cash costs, net |  |  | 0.0 | 0.0 | 0.0
Non-cash asset write-downs |  |  | 0.3 | 0.0 | 0.0
Total Special Charges |  |  | 0.3 | 0.9 | 0.3
Corporate |  |  |  |  |
Special charges, net |  |  |  |  |
Other cash costs, net |  |  |  | 0.0 | 1.0
Non-cash asset write-downs |  |  | 0.0 | 0.0 | 0.4
Total Special Charges |  |  |  |  | 1.6
Employee Termination Costs |  |  |  |  |
Special charges, net |  |  |  |  |
Employee termination costs |  |  | 0.1 | 1.0 | 1.0
Employee Termination Costs | Operating Segments | HVAC reportable segment |  |  |  |  |
Special charges, net |  |  |  |  |
Employee termination costs |  |  | $ 0.1 | 0.1 | 0.5
Employee Termination Costs | Operating Segments | Detection and Measurement reportable segment |  |  |  |  |
Special charges, net |  |  |  |  |
Employee termination costs |  |  |  | $ 0.9 | 0.3
Employee Termination Costs | Corporate |  |  |  |  |
Special charges, net |  |  |  |  |
Employee termination costs |  |  |  |  | $ 0.2

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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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