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Goodwill | 3 Months Ended
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Mar. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract] |
Goodwill | Goodwill: The changes in the carrying amount of goodwill in 2024, in total and by segment, are summarized in the table below (in millions):
| Balance as of December 31, 2023 |  | Goodwill Adjustment (1) |  |  |  | Balance as of March 31, 2024
Home Comfort Solutions | $ | 26.1 |  |  | $ | — |  |  |  |  | $ | 26.1 |
Building Climate Solutions (1) | 196.0 |  |  | (2.2) |  |  |  |  | 193.8 |
Total Goodwill | $ | 222.1 |  |  | $ | (2.2) |  |  |  |  | $ | 219.9 |
(1) As discussed in Note 13, an update to our purchase price allocation of AES resulted in a $2.2 million reduction of goodwill. We monitor our reporting units for indicators of impairment throughout the year to determine if a change in facts or circumstances warrants a re-evaluation of our goodwill. We have not recorded any goodwill impairments for the three months ended March 31, 2024 or in any periods presented for our continuing businesses.

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//350/tableOfContent + Details
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