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BASIS OF PRESENTATION - Tax (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
BASIS OF PRESENTATION |  |  |  |
Effective tax rate (as a percent) | 4.00% | 45.10% | 76.10% | 45.50%
Net capital loss carryback | $ 3,400 |  | $ 3,400 |
Refund claim for prior year recognized | 3,400 |  | 3,400 |
Increase (decrease) in unrecognized tax benefits | 228 |  | 683 |
Income tax benefit net accrual adjustment discrete items | 536 |  | 367 |
Income tax benefit from acquisitions | 0 |  | 0 |
Net tax provision for discrete items | $ 1,600 |  | $ 2,200 |

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32698-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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