EARNINGS PER SHARE DATA (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021		Jun. 30, 2020
Basic:
Weighted average shares outstanding (in shares)	19,291	17,735	19,239		17,719
Net income attributable to DXP Enterprises, Inc.	$ 8,119	$ 2,427	$ 8,490		$ 8,479
Convertible preferred stock dividend	22	22	45		45
Net income attributable to common shareholders	$ 8,097	$ 2,405	$ 8,445		$ 8,434
Per share amount (in dollars per share)	$ 0.42	$ 0.14	$ 0.44		$ 0.48
Diluted:
Weighted average shares outstanding (in shares)	19,291	17,735	19,239		17,719
Assumed conversion of convertible preferred stock (in shares)	840	840	840		840
Diluted (in shares)	20,131	18,575	20,079	[1]	18,559
Net income attributable to common shareholders	$ 8,097	$ 2,405	$ 8,445		$ 8,434
Convertible preferred stock dividend	22	22	45		45
Net income attributable to DXP Enterprises, Inc.	$ 8,119	$ 2,427	$ 8,490		$ 8,479
Diluted (in dollars per share)	$ 0.41	$ 0.13	$ 0.42	[1]	$ 0.45

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