XML 58 R27.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Defined Benefit Plans (Tables) | 3 Months Ended
--- | ---
Mar. 30, 2014
Defined Benefit Plans |
Schedule of the components of net periodic benefit cost |
|  | First Quarter Ended |
|  | March 30, 2014 |  | March 31, 2013 |
|  | (in millions) |
Service cost — administrative costs |  | $ | 0.2 |  | $ | 0.1 |
Interest costs on benefits obligation |  | 1.5 |  | 1.4 |
Expected return on assets |  | (1.5 | ) | (1.7 | )
Net actuarial loss amortization |  | 0.3 |  | 0.2 |
Net periodic benefit cost |  | $ | 0.5 |  | $ | — |
Information related to the company's pension funds cash flow |
|  | First Quarter Ended |
|  | March 30, 2014 |  | March 31, 2013 |
|  | (in millions) |
Employer contributions |  | $ | 0.2 |  | $ | 0.2 |

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

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the entity's pension funds cash flows, which may include employer contributions and benefit payments. + References No definition available. + Details
Name: | wts_ScheduleOfDefinedBenefitPlansPensionCashFlowsTableTextBlock
Namespace Prefix: | wts_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration