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INCOME TAXES - Valuation Allowances (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Valuation allowance, Beginning Balance | $ 135,764 |
Valuation allowance, additions | 11,459 | $ 7,469
Valuation allowance, deductions | (15,669) | (1,800)
Valuation allowance, Ending Balance | 131,554 | 135,764
Valuation Allowance of Deferred Tax Assets |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |
Valuation allowance, Beginning Balance | 135,764 | 130,095
Valuation allowance, Ending Balance | $ 131,554 | $ 135,764

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- Definition Valuation Allowance, Deferred Tax Asset, Additions, Amount + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition Valuation Allowance, Deferred Tax Asset, Deductions, Amount + References No definition available. + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Details
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