SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Variable Interest Entity [Line Items]
Ownership percentage in VIE				47.50%
Assets of VIE	$ 5,300,000			$ 5,300,000	$ 5,200,000
Increase cost of sales from consolidation of the VIE	300,000	$ 200,000		500,000		$ 600,000
Increase in selling, general and administrative expense	200,000	46,000		500,000		100,000
Income tax benefit of VIE	300,000	$ 50,000		500		150,000
Equity method investment			$ 4,000,000	$ 0	0	$ 4,000,000
Distributions received from investments					4,000,000
Former Executive Officers and Other Employees of DXP [Member]
Variable Interest Entity [Line Items]
Ownership percentage in VIE				52.50%
Property and Equipment [Member]
Variable Interest Entity [Line Items]
Assets of VIE	$ 5,000,000			$ 5,000,000	$ 5,200,000