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REVENUE (Tables) | 12 Months Ended
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Dec. 31, 2020
Disaggregation of Revenue [Line Items] |
Disaggregation of Revenue | The following table presents the Company's percentage of revenue by reportable segment and by major customer industry:
| Twelve Months Ended December 31, 2020
| United States |  | Canada |  | Total Company (2)
Government | 21 |  | % |  | 9 |  | % |  | 16 |  | %
Heavy Manufacturing | 16 |  | % |  | 18 |  | % |  | 15 |  | %
Light Manufacturing | 13 |  | % |  | 7 |  | % |  | 10 |  | %
Transportation | 5 |  | % |  | 10 |  | % |  | 5 |  | %
Healthcare | 10 |  | % |  | — |  | % |  | 7 |  | %
Commercial | 8 |  | % |  | 9 |  | % |  | 7 |  | %
Retail/Wholesale | 10 |  | % |  | 3 |  | % |  | 8 |  | %
Contractors | 9 |  | % |  | 10 |  | % |  | 7 |  | %
Natural Resources | 2 |  | % |  | 29 |  | % |  | 3 |  | %
Other (1) | 6 |  | % |  | 5 |  | % |  | 22 |  | %
Total net sales | 100 |  | % |  | 100 |  | % |  | 100 |  | %
Percent of Total Company Revenue | 73 |  | % |  | 4 |  | % |  | 100 |  | %
(1) Other category primarily includes revenue from individual customers not aligned to major industry segment, including small businesses and consumers, and intersegment net sales.
(2) Total Company includes other businesses, which include the Company's endless assortment businesses and smaller international high-touch businesses and account for approximately 23% of revenue for the twelve months ended December 31, 2020.
| Twelve Months Ended December 31, 2019
| United States |  | Canada |  | Total Company (2)
Government | 18 |  | % |  | 6 |  | % |  | 14 |  | %
Heavy Manufacturing | 19 |  | % |  | 20 |  | % |  | 17 |  | %
Light Manufacturing | 12 |  | % |  | 6 |  | % |  | 10 |  | %
Transportation | 6 |  | % |  | 8 |  | % |  | 5 |  | %
Healthcare | 7 |  | % |  | — |  | % |  | 6 |  | %
Commercial | 10 |  | % |  | 9 |  | % |  | 8 |  | %
Retail/Wholesale | 9 |  | % |  | 4 |  | % |  | 7 |  | %
Contractors | 10 |  | % |  | 10 |  | % |  | 8 |  | %
Natural Resources | 3 |  | % |  | 33 |  | % |  | 4 |  | %
Other (1) | 6 |  | % |  | 4 |  | % |  | 21 |  | %
Total net sales | 100 |  | % |  | 100 |  | % |  | 100 |  | %
Percent of Total Company Revenue | 72 |  | % |  | 5 |  | % |  | 100 |  | %
(1) Other category primarily includes revenue from individual customers not aligned to major industry segment, including small businesses and consumers, and intersegment net sales.
(2) Total Company includes other businesses, which include the Company's endless assortment businesses and smaller international high-touch businesses and account for approximately 23% of revenue for the twelve months ended December 31, 2019.

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- 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=121604090&loc=SL49130545-203045 + Details
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