XML 76 R60.htm IDEA: XBRL DOCUMENT
v3.20.4

Goodwill and Intangibles - Goodwill (Details) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2020 USD ($) | Sep. 27, 2020 USD ($) | Dec. 31, 2020 USD ($) item | Dec. 31, 2019 USD ($) | Oct. 25, 2020 USD ($)
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | $ 748.2 | $ 711.9 |
Acquired During the Period |  |  | 9.4 | 38.3 |
Foreign Currency Translation and Other |  |  | 11.9 | (2.0) |
Balance at the end of the period | $ 769.5 |  | 769.5 | 748.2 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (167.1) | (167.1) |
Balance at the end of the period | (167.1) |  | (167.1) | (167.1) |
Goodwill impairment charges |  |  | 0.0 | 0.0 |
Net Goodwill | 602.4 |  | $ 602.4 | 581.1 | $ 590.8
Number of reporting units | item |  |  | 7 |  |
Number of reporting units with goodwill | item |  |  | 6 |  |
Number of reporting units with no goodwill | item |  |  | 1 |  |
Acquisitions during the year | item |  |  | 2 |  |
Goodwill impairment charges |  |  | $ 0.0 | 0.0 |
Heating and Hot Water Solutions |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the end of the period | 218.9 |  | 218.9 |  |
Americas |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | 476.8 | 438.1 |
Acquired During the Period | 5.5 |  | 5.5 | 38.3 |
Foreign Currency Translation and Other |  |  | 0.2 | 0.4 |
Balance at the end of the period | 482.5 |  | 482.5 | 476.8 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (24.5) | (24.5) |
Balance at the end of the period | (24.5) |  | (24.5) | (24.5) |
Net Goodwill | 458.0 |  | 458.0 | 452.3 |
Europe |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | 241.4 | 243.7 |
Foreign Currency Translation and Other |  |  | 10.7 | (2.3) |
Balance at the end of the period | 252.1 |  | 252.1 | 241.4 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (129.7) | (129.7) |
Balance at the end of the period | (129.7) |  | (129.7) | (129.7) |
Net Goodwill | 122.4 |  | 122.4 | 111.7 |
APMEA |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the beginning of the period |  |  | 30.0 | 30.1 |
Acquired During the Period |  | $ 3.9 | 3.9 |  |
Foreign Currency Translation and Other |  |  | 1.0 | (0.1) |
Balance at the end of the period | 34.9 |  | 34.9 | 30.0 |
Accumulated Impairment Losses |  |  |  |  |
Balance at the beginning of the period |  |  | (12.9) | (12.9) |
Balance at the end of the period | (12.9) |  | (12.9) | (12.9) |
Net Goodwill | 22.0 |  | 22.0 | $ 17.1 |
Water Quality Products |  |  |  |  |
Gross Balance |  |  |  |  |
Balance at the end of the period | $ 0.0 |  | $ 0.0 |  |

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(10)(1)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120320667&loc=SL49117168-202975 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated impairment loss for an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_GoodwillImpairedAccumulatedImpairmentLossAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13777-109266 + Details
Name: | us-gaap_GoodwillImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment. + References No definition available. + Details
Name: | us-gaap_NumberOfReportingUnits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | wts_GoodwillGrossAbstract
Namespace Prefix: | wts_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The increase (decrease) to the recorded value of goodwill for foreign currency translation adjustments and other increases or decreases during the reporting period in the carrying value of goodwill that are not separately disclosed. + References No definition available. + Details
Name: | wts_GoodwillTranslationAdjustmentsAndOtherChanges
Namespace Prefix: | wts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the number of acquisition completed during the period. + References No definition available. + Details
Name: | wts_NumberOfAcquisitionsCompleted
Namespace Prefix: | wts_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of reporting units with goodwill. + References No definition available. + Details
Name: | wts_NumberOfReportingUnitsWithGoodwill
Namespace Prefix: | wts_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of reporting units with no goodwill. + References No definition available. + Details
Name: | wts_NumberOfReportingUnitsWithNoGoodwill
Namespace Prefix: | wts_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ReportingUnitAxis=wts_HeatingAndHotWaterSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_AmericasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=srt_EuropeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=wts_AsiaPacificMiddleEastAndAfricaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=wts_WaterQualityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |