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SUMMARY OF SIGNIFICANT ACCOUNTING AND BUSINESS POLICIES - Impairment of Goodwill, Other Intangibles and Long-lived Assets (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Impairment of long-lived assets, excluding goodwill | $ 0 | $ 0 | $ 0

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- Definition Impairment of Long-Lived Assets (Excluding Goodwill) + References No definition available. + Details
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