EARNINGS PER SHARE DATA (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Basic:
Weighted average shares outstanding (in shares)	19,186	17,713
Net income attributable to DXP Enterprises, Inc.	$ 371	$ 6,052
Convertible preferred stock dividend	23	23
Net income attributable to common shareholders	$ 348	$ 6,029
Per share amount (in dollars per share)	$ 0.02	$ 0.34
Diluted:
Weighted average shares outstanding (in shares)	19,186	17,713
Assumed conversion of convertible preferred stock (in shares)	840	840
Diluted (in shares)	20,026	18,553
Net income attributable to common shareholders	$ 348	$ 6,029
Convertible preferred stock dividend	23	23
Net income attributable to DXP Enterprises, Inc.	$ 371	$ 6,052
Diluted (in dollars per share)	$ 0.02	$ 0.32