CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Sales	$ 1,267,189	$ 1,216,197	$ 1,006,782
Cost of sales	919,965	883,989	735,201
Gross profit	347,224	332,208	271,581
Selling, general and administrative expense	281,102	263,757	238,091
Income from operating	66,122	68,451	33,490
Other income, net	(45)	(1,192)	(456)
Interest expense	19,498	20,937	17,054
Total income before taxes	46,669	48,706	16,892
Provision for income taxes	10,894	13,185	363
Net income	35,775	35,521	16,529
Net loss attributable to noncontrolling interest	(260)	(111)	(359)
Net income attributable to DXP Enterprises, Inc.	36,035	35,632	16,888
Preferred stock dividend	90	90	90
Net income attributable to common shareholders	35,945	35,542	16,798
Net income	35,775	35,521	16,529
Cumulative translation adjustment, net of income taxes	(687)	224	(1,217)
Comprehensive income	$ 35,088	$ 35,745	$ 15,312
Earnings per share:
Basic (in dollars per share)	$ 2.04	$ 2.02	$ 0.97
Diluted (in dollars per share)	$ 1.96	$ 1.94	$ 0.93
Weighted average common shares outstanding:
Basic (in shares)	17,592	17,553	17,400
Diluted (in shares)	18,432	18,393	18,240