EARNINGS PER SHARE DATA (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2020		Sep. 30, 2019	Sep. 30, 2020		Sep. 30, 2019
Basic:
Weighted average shares outstanding (in shares)	17,790		17,602	17,743		17,588
Net income (loss) attributable to DXP Enterprises, Inc.	$ (34,666)		$ 13,109	$ (26,814)		$ 33,859
Convertible preferred stock dividend	23		23	68		68
Net income (loss) attributable to common shareholders	$ (34,689)		$ 13,086	$ (26,882)		$ 33,791
Per share amount (in dollars per share)	$ (1.95)		$ 0.74	$ (1.52)		$ 1.92
Diluted:
Weighted average shares outstanding (in shares)	17,790		17,602	17,743		17,588
Assumed conversion of convertible preferred stock (in shares)	0		840	0		840
Total dilutive shares (in shares)	17,790	[1]	18,442	17,743	[1]	18,428
Net income (loss) attributable to common shareholders	$ (34,689)		$ 13,086	$ (26,882)		$ 33,791
Convertible preferred stock dividend	0		23	0		68
Net income (loss) attributable to DXP Enterprises, Inc.	$ (34,689)		$ 13,109	$ (26,882)		$ 33,859
Per share amount (in dollars per share)	$ (1.95)	[1]	$ 0.71	$ (1.52)	[1]	$ 1.84
Antidilutive convertible preferred securities excluded from diluted earnings per share calculation (in shares)	840			840

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