REVENUE (Tables)

6 Months Ended

Jun. 30, 2020

Revenue from Contract with Customer [Abstract]

The following table presents the Company's percentage of revenue by reportable segment and by major customer industry:


	Three Months Ended June 30,
	2020										2019
	U.S.		Canada		Total Company (2)		U.S.		Canada		Total Company (2)
Government	24	%	10	%	17	%	19	%	6	%	14	%
Heavy Manufacturing	15	%	16	%	15	%	19	%	20	%	17	%
Light Manufacturing	13	%	7	%	10	%	13	%	6	%	11	%
Transportation	5	%	10	%	5	%	5	%	8	%	5	%
Healthcare	11	%	—	%	8	%	7	%	—	%	5	%
Commercial	7	%	10	%	6	%	10	%	9	%	8	%
Retail/Wholesale	10	%	3	%	8	%	8	%	4	%	7	%
Contractors	9	%	10	%	7	%	10	%	11	%	8	%
Natural Resources	2	%	29	%	3	%	3	%	32	%	4	%
Other (1)	4	%	5	%	21	%	6	%	4	%	21	%
Total	100	%	100	%	100	%	100	%	100	%	100	%
Percent of Total Company Revenue	72	%	4	%	100	%	72	%	5	%	100	%


	Six Months Ended June 30,
	2020										2019
	U.S.		Canada		Total Company (2)		U.S.		Canada		Total Company (2)
Government	21	%	10	%	16	%	18	%	6	%	13	%
Heavy Manufacturing	17	%	17	%	16	%	19	%	21	%	18	%
Light Manufacturing	13	%	6	%	10	%	13	%	6	%	11	%
Transportation	5	%	10	%	5	%	6	%	8	%	5	%
Healthcare	10	%	—	%	7	%	7	%	—	%	5	%
Commercial	8	%	9	%	7	%	10	%	9	%	8	%
Retail/Wholesale	10	%	4	%	8	%	8	%	4	%	7	%
Contractors	9	%	9	%	7	%	10	%	10	%	8	%
Natural Resources	2	%	29	%	3	%	3	%	32	%	4	%
Other (1)	5	%	6	%	21	%	6	%	4	%	21	%
Total net sales to external customers	100	%	100	%	100	%	100	%	100	%	100	%
Percent of Total Company Revenue	72	%	4	%	100	%	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 operations in the United Kingdom (U.K.) and Mexico and accounts for approximately 24% of revenue for the three and six months ended June 30, 2020 and 23% of revenue for the three and six months ended June 30, 2019.