XML 60 R27.htm IDEA: XBRL DOCUMENT v2.4.0.8

Basis of Presentation (Details)	6 Months Ended
	Jun. 29, 2014
Basis of Presentation
Length of fiscal year	364 days
Length of fiscal quarter	91 days
Length of half fiscal year	182 days

X

- Details

Name:	us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the length of fiscal quarter of the entity.

+ References

No definition available.

+ Details

Name:	wts_LengthOfFiscalQuarter
Namespace Prefix:	wts_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the length of fiscal year of the entity.

+ References

No definition available.

+ Details

Name:	wts_LengthOfFiscalYear
Namespace Prefix:	wts_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the length of half fiscal year of the entity.

+ References

No definition available.

+ Details

Name:	wts_LengthOfHalfFiscalYear
Namespace Prefix:	wts_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration