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BASIS OF PRESENTATION - Revenue from Contracts with Customer (Details) - USD ($) $ in Thousands | Mar. 31, 2018 | Jan. 01, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Disaggregation of Revenue [Line Items] |  |  |
Deferred tax assets, net | $ 9,627 |  | $ 7,180
Accounting Standards Update 2014-09 |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Deferred tax assets, net |  | $ 57 |
Modified retrospective basis adoption of Revenue Recognition Accounting Codification Standard 606 |  |  | $ 184

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