XML 94 R78.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Revenues and Long-Lived Assets by Geographical Area (Detail) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017 | [1] | Jun. 30, 2017 | [1] | Mar. 31, 2017 | [1] | Dec. 31, 2016 | Sep. 30, 2016 | [1] | Jun. 30, 2016 | [1] | Mar. 31, 2016 | [1] | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Geographic Area Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 964,345 | [1] | $ 1,229,591 | $ 1,275,924 | $ 872,095 | $ 913,611 | [1] | $ 1,241,232 | $ 1,214,435 | $ 851,424 | $ 4,341,955 | [1] | $ 4,220,702 | [1] | $ 4,113,239
Long-Lived Assets | 709,480 |  |  |  |  | 628,803 |  |  |  |  | 709,480 |  | 628,803 |  |
UNITED STATES |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographic Area Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  | 3,919,684 |  | 3,813,204 |  | 3,710,977
Long-Lived Assets | 540,136 |  |  |  |  | 467,728 |  |  |  |  | 540,136 |  | 467,728 |  |
CANADA |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographic Area Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  | 269,603 |  | 267,220 |  | 263,908
Long-Lived Assets | 163,944 |  |  |  |  | 155,758 |  |  |  |  | 163,944 |  | 155,758 |  |
MEXICO |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Geographic Area Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  | 152,668 |  | 140,278 |  | $ 138,354
Long-Lived Assets | $ 5,400 |  |  |  |  | $ 5,317 |  |  |  |  | $ 5,400 |  | $ 5,317 |  |
[1] | Sales of residential central air conditioners, heating equipment and parts and supplies are seasonal. Demand related to the residential central air conditioning replacement market is typically highest in the second and third quarters, and demand for heating equipment is usually highest in the fourth quarter. Demand related to the new construction sectors throughout most of the markets is fairly evenly distributed throughout the year except for dependence on housing completions and related weather and economic conditions.

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Entity Wide Disclosure On Geographic Area Long Lived Assets + References No definition available. + Details
Name: | wso_EntityWideDisclosureOnGeographicAreaLongLivedAssets
Namespace Prefix: | wso_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Geographic Area Information [Line Items] + References No definition available. + Details
Name: | wso_GeographicAreaInformationLineItems
Namespace Prefix: | wso_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_MX
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |