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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