XML 64 R23.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Basis of Presentation - Additional Information (Detail) | Jun. 30, 2013 Entity
--- | ---
Basis of Presentation [Line Items] |
Number of joint ventures | 3

X
- Details
Name: | wso_BasisOfPresentationLineItems
Namespace Prefix: | wso_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of joint ventures. + References No definition available. + Details
Name: | wso_NumberOfJointVentures
Namespace Prefix: | wso_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant