XML 41 R30.htm IDEA: XBRL DOCUMENT
v3.21.2

Basis of Presentation (Details) | 9 Months Ended
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Sep. 26, 2021
Basis of Presentation |
Length of fiscal year | 365 days
Length of fiscal quarter | 91 days

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

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- Definition Represents the length of fiscal quarter of the entity. + References No definition available. + Details
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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
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Namespace Prefix: | wts_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration