XML 99 R82.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Subsequent Events (Details) (USD $) In Millions, except Per Share data, unless otherwise specified | 3 Months Ended | 12 Months Ended | 0 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2014 | Sep. 28, 2014 | Jun. 29, 2014 | Mar. 30, 2014 | Dec. 31, 2013 | Sep. 29, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 17, 2015 | Feb. 12, 2015
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  | $ 376.5 us-gaap_SalesRevenueNet | $ 376.0 us-gaap_SalesRevenueNet | $ 396.0 us-gaap_SalesRevenueNet | $ 365.2 us-gaap_SalesRevenueNet | $ 376.0 us-gaap_SalesRevenueNet | $ 371.8 us-gaap_SalesRevenueNet | $ 366.8 us-gaap_SalesRevenueNet | $ 358.9 us-gaap_SalesRevenueNet | $ 1,513.7 us-gaap_SalesRevenueNet | $ 1,473.5 us-gaap_SalesRevenueNet | $ 1,427.4 us-gaap_SalesRevenueNet |  |
Pre-tax restructuring charges | 15.2 wts_RestructuringSettlementAndImpairmentProvisionsTotalGross |  |  |  |  |  |  |  |  | 15.2 wts_RestructuringSettlementAndImpairmentProvisionsTotalGross | 10.0 wts_RestructuringSettlementAndImpairmentProvisionsTotalGross | 5.2 wts_RestructuringSettlementAndImpairmentProvisionsTotalGross |  |
Indefinite-lived intangible asset impairment | 0.5 us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill |  |  |  |  |  |  |  |  | 0.5 us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill |  |  |  |
Other transformation and deployment costs | 1.8 us-gaap_RestructuringCharges |  |  |  |  |  |  |  |  | 1.8 us-gaap_RestructuringCharges |  |  |  |
Income tax benefit |  |  |  |  |  |  |  |  |  | 32.8 us-gaap_IncomeTaxExpenseBenefit | 26.9 us-gaap_IncomeTaxExpenseBenefit | 29.8 us-gaap_IncomeTaxExpenseBenefit |  |
Net after tax charges | 8.0 us-gaap_RestructuringSettlementAndImpairmentProvisions |  |  |  |  |  |  |  |  | 15.2 us-gaap_RestructuringSettlementAndImpairmentProvisions | 8.7 us-gaap_RestructuringSettlementAndImpairmentProvisions | 4.2 us-gaap_RestructuringSettlementAndImpairmentProvisions |  |
Americas and Asia Pacific |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill Impairment Charge | 12.9 us-gaap_GoodwillImpairmentLoss / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember |  |  |  |  |  |  |  |  | 12.9 us-gaap_GoodwillImpairmentLoss / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember |  |  |  |
Asia Pacific |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill Impairment Charge | 12.9 us-gaap_GoodwillImpairmentLoss / us-gaap_StatementGeographicalAxis = us-gaap_AsiaPacificMember |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent event | Americas and Asia Pacific |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net gain on property sales |  |  |  |  |  |  |  |  |  |  |  |  | 5.0 us-gaap_GainLossOnSaleOfProperty / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Increase in consolidated operating margin |  |  |  |  |  |  |  |  |  |  |  |  | 1.00%wts_ConsolidatedOperatingMargin / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Asia Pacific |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax benefit |  |  |  |  |  |  |  |  |  |  |  |  | 0 us-gaap_IncomeTaxExpenseBenefit / us-gaap_StatementGeographicalAxis = us-gaap_AsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Minimum | Americas and Asia Pacific |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  | 175.0 us-gaap_SalesRevenueNet / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 40.0 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Expected non-cash charges |  |  |  |  |  |  |  |  |  |  |  |  | 25 wts_RestructuringSettlementAndImpairmentProvisionsNonCash / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Net after tax charges |  |  |  |  |  |  |  |  |  |  |  |  | 30.0 us-gaap_RestructuringSettlementAndImpairmentProvisions / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Minimum | Americas and Asia Pacific | Severance |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 8.0 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_EmployeeSeveranceMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Minimum | Americas and Asia Pacific | Facility exit and other |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 3.0 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RestructuringCostAndReserveAxis = wts_FacilityClosingAndOtherMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Minimum | Americas and Asia Pacific | Asset write-downs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 8.0 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RestructuringCostAndReserveAxis = wts_PlantWriteDownMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Minimum | Americas and Asia Pacific | All other associated costs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 5.8 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_OtherExpenseMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Maximum | Americas and Asia Pacific |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  | 200.0 us-gaap_SalesRevenueNet / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 50.0 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Expected non-cash charges |  |  |  |  |  |  |  |  |  |  |  |  | 30 wts_RestructuringSettlementAndImpairmentProvisionsNonCash / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Net after tax charges |  |  |  |  |  |  |  |  |  |  |  |  | 40.0 us-gaap_RestructuringSettlementAndImpairmentProvisions / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Maximum | Americas and Asia Pacific | Severance |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 10.0 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_EmployeeSeveranceMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Maximum | Americas and Asia Pacific | Facility exit and other |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 4.0 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RestructuringCostAndReserveAxis = wts_FacilityClosingAndOtherMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Maximum | Americas and Asia Pacific | Asset write-downs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | 10.0 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RestructuringCostAndReserveAxis = wts_PlantWriteDownMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Maximum | Americas and Asia Pacific | All other associated costs |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Expected pre-tax charge |  |  |  |  |  |  |  |  |  |  |  |  | $ 10.8 us-gaap_RestructuringAndRelatedCostExpectedCost1 / us-gaap_RangeAxis = us-gaap_MaximumMember / us-gaap_RestructuringCostAndReserveAxis = us-gaap_OtherExpenseMember / us-gaap_StatementGeographicalAxis = wts_AmericasAndAsiaPacificMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember |
Subsequent event | Class A |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend declared (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.15 us-gaap_DividendsPayableAmountPerShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Subsequent event | Class B |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subsequent events |  |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly dividend declared (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  | $ (0.15)us-gaap_DividendsPayableAmountPerShare / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

X
- Definition The per share amount of a dividend declared, but not paid, as of the financial reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_DividendsPayableAmountPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of gain (loss) on sale or disposal of oil and gas property or timber property. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
Name: | us-gaap_GainLossOnSaleOfProperty
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13777-109266 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
Name: | us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 + Details
Name: | us-gaap_RestructuringAndRelatedCostExpectedCost1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.P.3) -URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section P -Subsection 3, 4 + Details
Name: | us-gaap_RestructuringCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period. Generally, these items are either unusual or infrequent, but not both (in which case they would be extraordinary items). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_RestructuringSettlementAndImpairmentProvisions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_SalesRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the consolidated operating margin for the period. + References No definition available. + Details
Name: | wts_ConsolidatedOperatingMargin
Namespace Prefix: | wts_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition " Represents non-cash aggregate amount provided for estimated restructuring charges, remediation costs, and asset impairment loss during an accounting period." + References No definition available. + Details
Name: | wts_RestructuringSettlementAndImpairmentProvisionsNonCash
Namespace Prefix: | wts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The total gross amount of restructuring and impairment charges incurred during the period including those amounts included in cost of goods sold. + References No definition available. + Details
Name: | wts_RestructuringSettlementAndImpairmentProvisionsTotalGross
Namespace Prefix: | wts_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=us-gaap_AsiaPacificMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=wts_AmericasAndAsiaPacificMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |