XML 35 R20.htm IDEA: XBRL DOCUMENT
v3.21.1

REVENUE (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2021
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue [Table Text Block] | The following tables disaggregate WESCO’s net sales by segment and geography for the periods presented:
| Three Months Ended |  |
| March 31 |  |
(In thousands) | 2021 |  | 2020 |  |  |  |
EES | $ | 1,720,813 |  |  | $ | 1,114,457 |  |  |  |  |
CSS | 1,250,615 |  |  | 223,726 |  |  |  |  |
UBS | 1,070,049 |  |  | 630,464 |  |  |  |  |
Total by segment | $ | 4,041,477 |  |  | $ | 1,968,647 |  |  |  |  |
| Three Months Ended |  |
| March 31 |  |
(In thousands) | 2021 |  | 2020 |  |  |  |
United States | $ | 2,930,435 |  |  | $ | 1,478,491 |  |  |  |  |
Canada | 607,753 |  |  | 377,419 |  |  |  |  |
Other International(1) | 503,289 |  |  | 112,737 |  |  |  |  |
Total by geography(2) | $ | 4,041,477 |  |  | $ | 1,968,647 |  |  |  |  |

X
- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
Name: | us-gaap_DisaggregationOfRevenueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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