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v3.24.0.1

Goodwill (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Goodwill |  |  |  |
Beginning Balance |  | $ 186.3 | $ 186.6 |
Goodwill, Foreign Currency Translation Gain (Loss) |  |  | (0.3) |
Goodwill, Transfers |  | 0.0 |  |
Goodwill, Written off Related to Sale of Business Unit |  | (4.6) |  |
Goodwill, Acquired During Period |  | 40.4 |  |
Ending Balance |  | 222.1 | 186.3 |
Goodwill, accumulated impairment losses |  |  |  | $ 32.7
Discontinued Operations, Disposed of by Sale [Member] | European Commercial HVAC and Refrigeration Operations |  |  |  |
Goodwill |  |  |  |
Impairment of Long-Lived Assets to be Disposed of, Goodwill | $ 2.3 |  |  |
Corporate, Non-Segment |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 0.0 | 0.0 |
Goodwill, Foreign Currency Translation Gain (Loss) |  |  | 0.0 |
Goodwill, Transfers |  | 4.6 |  |
Goodwill, Written off Related to Sale of Business Unit |  | (4.6) |  |
Goodwill, Acquired During Period |  | 0.0 |  |
Ending Balance |  | 0.0 | 0.0 |
Residential Heating & Cooling [Member] | Operating Segments |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 26.1 | 26.1 |
Goodwill, Foreign Currency Translation Gain (Loss) |  |  | 0.0 |
Goodwill, Transfers |  | 0.0 |  |
Goodwill, Written off Related to Sale of Business Unit |  | 0.0 |  |
Goodwill, Acquired During Period |  | 0.0 |  |
Ending Balance |  | 26.1 | 26.1 |
Commercial Heating & Cooling [Member] | Operating Segments |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 61.1 | 61.1 |
Goodwill, Foreign Currency Translation Gain (Loss) |  |  | 0.0 |
Goodwill, Transfers |  | 94.5 |  |
Goodwill, Written off Related to Sale of Business Unit |  | 0.0 |  |
Goodwill, Acquired During Period |  | 40.4 |  |
Ending Balance |  | 196.0 | 61.1 |
Refrigeration [Member] | Operating Segments |  |  |  |
Goodwill |  |  |  |
Beginning Balance |  | 99.1 | 99.4 |
Goodwill, Foreign Currency Translation Gain (Loss) |  |  | (0.3) |
Goodwill, Transfers |  | (99.1) |  |
Goodwill, Written off Related to Sale of Business Unit |  | 0.0 |  |
Goodwill, Acquired During Period |  | 0.0 |  |
Ending Balance |  | $ 0.0 | $ 99.1 |

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