XML 84 R73.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Purchase of Ownership Interest in Joint Venture - Additional Information (Detail) $ in Thousands |  | 1 Months Ended
--- | --- | ---
Feb. 13, 2017 USD ($) | May 31, 2019 USD ($) Location
Homans Associates II LLC [Member] |  |
Business Acquisition [Line Items] |  |
Additional ownership interest acquired in subsidiary |  | 20.00%
Percentage of ownership interest |  | 100.00%
Cash consideration paid to obtain additional ownership |  | $ 32,400
Number of locations in which the company operates | Location |  | 16
Carrier Enterprise II |  |
Business Acquisition [Line Items] |  |
Additional ownership interest acquired | 10.00% |
Cash consideration | $ 42,688 |
Controlling interest, ownership percentage | 80.00% |

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
Name: | us-gaap_EquityMethodInvestmentOwnershipPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The cash outflow associated with the purchase of noncontrolling interest during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireAdditionalInterestInSubsidiaries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
Name: | us-gaap_PaymentsToAcquireBusinessesGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Additional ownership interest acquired in subsidiary. + References No definition available. + Details
Name: | wso_AdditionalOwnershipInterestAcquiredInSubsidiary
Namespace Prefix: | wso_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Additional ownership interest percentage acquired in joint venture. + References No definition available. + Details
Name: | wso_AdditionalOwnershipInterestPercentageAcquiredInJointVenture
Namespace Prefix: | wso_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition No Of Locations From where this enterprise carries out its operations. + References No definition available. + Details
Name: | wso_NumberOfLocationsInWhichTheEntityOperates
Namespace Prefix: | wso_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of ownership interest in subsidiary. + References No definition available. + Details
Name: | wso_PercentageOfOwnershipInterestInSubsidiary
Namespace Prefix: | wso_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=wso_HomansAssociatesIiLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=wso_CarrierEnterpriseTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |