XML 51 R39.htm IDEA: XBRL DOCUMENT
v3.24.3

Acquisitions and Dispositions (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Sep. 30, 2023 | Mar. 31, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Aggregate cash purchase price, net of cash acquired |  | $ 21.3 | $ 0.7 | $ 16.8 |  | $ 21.3 | $ 16.1
Contingent payment term |  | 3 years |  |  |  |  |
Impairment expense | $ 0.0 |  |  | 0.0 |  | 0.0 | 15.6
Pureit |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Price of acquisition | 120.0 |  |  |  |  |  |
Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Impairment expense |  |  |  |  | $ 15.6 |  |
Impairment Recorded as Net Reduction to Assets and Liabilities | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Impairment expense |  |  |  |  | 4.5 |  |
Impairment Recorded for Anticipated Liquidation of Cumulative Foreign Currency Translation Adjustment Recorded in Accrued Liabilities | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Impairment expense |  |  |  |  | 11.1 |  |
Corporate expenses |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Impairment expense | 0.0 |  |  | 0.0 |  | 0.0 | 3.1
Corporate expenses | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Impairment expense |  |  |  |  | 3.1 |  |
Rest of World | Operating Segments |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Impairment expense | $ 0.0 |  |  | $ 0.0 |  | $ 0.0 | $ 12.5
Rest of World | Operating Segments | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |
Impaired Long-Lived Assets Held and Used [Line Items] |  |  |  |  |  |  |
Impairment expense |  |  |  |  | $ 12.5 |  |

X
- Definition Business Combination, Contingent Consideration, Contingent Payment Term + References No definition available. + Details
Name: | aos_BusinessCombinationContingentConsiderationContingentPaymentTerm
Namespace Prefix: | aos_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | instant

X
- Definition Purchase price of expected asset acquisition prior to consideration being transferred. Excludes business acquisition. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 805 -SubTopic 50 -Name Accounting Standards Codification -Section 15 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480123/805-50-15-3 + Details
Name: | us-gaap_AssetAcquisitionPriceOfAcquisitionExpected
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ImpairedLongLivedAssetsHeldAndUsedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482130/360-10-45-15 + Details
Name: | us-gaap_ImpairmentOfLongLivedAssetsToBeDisposedOf
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-13 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_AssetAcquisitionAxis=aos_PureitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DisposalGroupClassificationAxis=us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | aos_AssetImpairmentChargesAxis=aos_ImpairmentRecordedAsNetReductionToAssetsAndLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | aos_AssetImpairmentChargesAxis=aos_ImpairmentRecordedForAnticipatedLiquidationOfCumulativeForeignCurrencyTranslationAdjustmentRecordedInAccruedLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_CorporateNonSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=aos_RestOfWorldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=us-gaap_OperatingSegmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |