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GOODWILL AND OTHER INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
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Dec. 31, 2016 | Sep. 30, 2016 | [1] | Jun. 30, 2016 | [1] | Mar. 31, 2016 | Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | [1] | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | [1] | Jun. 30, 2014 | [1] | Mar. 31, 2014 | [1] | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of decrease in common stock |  |  |  |  |  | 16.00% | 40.00% |  |  |  |  |  |  |  |  |  | 16.00% |
Percentage on decrease in price of crude oil |  |  |  |  |  | 18.00% | 20.00% |  |  |  |  |  |  |  |  |  | 18.00% |
Accumulated impairment of goodwill |  |  |  |  |  | $ 12,300 |  |  |  |  |  |  |  |  |  |  | $ 12,300 |
Impairment expense of write off an acquired intangible asset |  |  |  |  |  |  | $ 1,100 |  |  |  |  |  |  |  |  |  | 1,072 |
Remaining intangible asset value of vendor distribution agreements |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  | 0 |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | $ 197,362 |  |  |  |  |  | $ 253,312 |  |  |  |  |  | $ 197,362 | 253,312 |
Acquired during the year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,713 |
Sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (9,620) |  |
Purchase accounting adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (151) |  |
Impairment | $ 0 | $ 0 | $ 0 | 0 | [1] | (9,800) | (58,900) | [1] | $ 0 | 0 | [1] | $ (117,600) | $ 0 | $ 0 | $ 0 |  | (67,663) |
Translation adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Balance at end of period | 187,591 |  |  |  |  | 197,362 |  |  |  |  |  | 253,312 |  |  |  | 187,591 | 197,362 | $ 253,312
Other Intangibles Assets [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 112,297 |  |  |  |  |  | 130,333 |  |  |  |  |  | 112,297 | 130,333 |
Sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |
Purchase price adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |
Acquired during the year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,263 |
Impairment |  |  |  |  |  |  | (1,100) |  |  |  |  |  |  |  |  |  | (1,072) |
Translation adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 595 | (3,606) |
Amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (18,061) | (20,621) | (22,480)
Balance at end of period | 94,831 |  |  |  |  | 112,297 |  |  |  |  |  | 130,333 |  |  |  | 94,831 | 112,297 | 130,333
Total Goodwill and Intangible Assets [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 309,659 |  |  |  |  |  | 383,645 |  |  |  |  |  | 309,659 | 383,645 |
Sale of subsidiary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (9,620) |  |
Purchase price adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (151) |  |
Acquired during the year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 18,976 |
Impairment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | (68,735) | (117,569)
Translation adjustment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 595 | (3,606) |
Amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (18,061) | (20,621) | (22,480)
Balance at end of period | 282,422 |  |  |  |  | 309,659 |  |  |  |  |  | $ 383,645 |  |  |  | 282,422 | $ 309,659 | 383,645
B27, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of goodwill not deductible for tax purpose |  |  |  |  |  |  |  |  |  |  |  | 60.00% |  |  |  |  | 60.00% |
Percentage Goodwill impairment |  |  |  |  |  |  |  |  |  |  |  | 40.00% |  |  |  |  | 40.00% |
Service Centers [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 164,244 |  |  |  |  |  |  |  |  |  |  |  | 164,244 |  |
Balance at end of period | 154,473 |  |  |  |  | 164,244 |  |  |  |  |  |  |  |  |  | 154,473 | $ 164,244 |
Service Centers [Member] | B27, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated impairment of goodwill |  |  |  |  |  | 25,000 | 20,000 |  |  |  |  | $ 10,200 |  |  |  |  | 25,000 | 10,200
Fair value of goodwill |  |  |  |  |  |  |  |  |  |  |  | 20,100 |  |  |  |  |  | 20,100
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 5,300 |  | 10,300 |  |  |  |  |  |  |  |  |  | 5,300 |  |
Impairment |  |  |  |  |  | (5,000) | (9,800) |  |  |  |  | (10,200) |  |  |  |  |  |
Balance at end of period |  |  |  |  |  | 5,300 | 10,300 |  |  |  |  |  |  |  |  |  | 5,300 |
Innovative Pumping Solutions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 15,980 |  |  |  |  |  |  |  |  |  |  |  | 15,980 |  |
Balance at end of period | 15,980 |  |  |  |  | 15,980 |  |  |  |  |  |  |  |  |  | 15,980 | 15,980 |
Innovative Pumping Solutions [Member] | B27, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated impairment of goodwill |  |  |  |  |  | 148,000 | 143,100 |  |  |  |  | 95,100 |  |  |  |  | 148,000 | 95,100
Fair value of goodwill |  |  |  |  |  |  |  |  |  |  |  | 52,900 |  |  |  |  |  | 52,900
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 0 |  | 4,900 |  |  |  | $ 148,000 |  |  |  |  |  | 0 | 148,000 |
Impairment |  |  |  |  |  | (4,900) | (48,000) |  |  |  |  | (95,100) |  |  |  |  |  |
Balance at end of period |  |  |  |  |  | 0 | $ 4,900 |  |  |  |  | 148,000 |  |  |  |  | 0 | 148,000
Innovative Pumping Solutions [Member] | NatPro [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill and Intangible Asset Impairment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accumulated impairment of goodwill |  |  |  |  |  |  |  |  |  |  |  | 12,300 |  |  |  |  |  | $ 12,300
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment |  |  |  |  |  |  |  |  |  |  |  | $ (12,300) |  |  |  |  |  |
Supply Chain Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | $ 17,138 |  |  |  |  |  |  |  |  |  |  |  | 17,138 |  |
Balance at end of period | $ 17,138 |  |  |  |  | $ 17,138 |  |  |  |  |  |  |  |  |  | $ 17,138 | $ 17,138 |
[1] | During the fourth quarter of 2014, DXP finalized its purchase accounting for customer relationships for the acquisition of B27 and amortized the customer relationships on an accelerated basis. The revision increased amortization expense by $1.0 million per quarter.

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- Definition Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance. + References No definition available. + Details
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