ACQUISITIONS AND GOODWILL - Narrative (Details) - USD ($) $ in Thousands |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
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| Business Acquisitions and Goodwill [Abstract] | |||
| Goodwill | $ 32,962 | $ 32,962 | $ 32,962 |
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- Definition Business Acquisitions and Goodwill [Abstract] No definition available.
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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