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Goodwill (Details)
$ in Millions
3 Months Ended
Mar. 31, 2024
USD ($)
Goodwill [Roll Forward]  
Goodwill, Beginning Balance $ 222.1
Goodwill adjustment (2.2)
Goodwill, Ending Balance 219.9
AES  
Goodwill [Roll Forward]  
Goodwill, Beginning Balance 40.4
Goodwill adjustment 2.2
Goodwill, Ending Balance 38.2
Home Comfort Solutions  
Goodwill [Roll Forward]  
Goodwill, Beginning Balance 26.1
Goodwill adjustment 0.0
Goodwill, Ending Balance 26.1
Building Climate Solutions  
Goodwill [Roll Forward]  
Goodwill, Beginning Balance 196.0
Goodwill adjustment (2.2)
Goodwill, Ending Balance $ 193.8