EARNINGS PER SHARE DATA (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Basic [Abstract]
Weighted average shares outstanding (in shares)	17,394	14,600	17,402	14,529
Net income attributable to DXP Enterprises, Inc.	$ 2,966	$ 263	$ 10,234	$ 321
Convertible preferred stock dividend	23	23	68	68
Net income attributable to common shareholders	$ 2,943	$ 240	$ 10,166	$ 253
Per share amount (in dollars per share)	$ 0.17	$ 0.02	$ 0.58	$ 0.02
Diluted [Abstract]
Weighted average shares outstanding (in shares)	17,394	14,600	17,402	14,529
Assumed conversion of convertible preferred stock (in shares)	840	840	840	840
Total dilutive shares (in shares)	18,234	15,440	18,242	15,369
Net income attributable to common shareholders	$ 2,943	$ 240	$ 10,166	$ 253
Convertible preferred stock dividend	23	23	68	68
Net income attributable to DXP Enterprises, Inc. for diluted earnings per share	$ 2,966	$ 263	$ 10,234	$ 321
Per share amount (in dollars per share)	$ 0.16	$ 0.02	$ 0.56	$ 0.02