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RELATED-PARTY TRANSACTIONS - Narrative (Details) - Special Committee Investigation Indemnification - USD ($) $ in Thousands | 3 Months Ended
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Mar. 31, 2020 | Mar. 31, 2019
Executive Officers and Directors |  |
Related Party Transaction [Line Items] |  |
Expenses from transactions with related parties | $ 120 |
Former President And Chief Executive Officer |  |
Related Party Transaction [Line Items] |  |
Expenses from transactions with related parties |  | $ 2,200
Former Interim Chief Financial Officer and Chief Strategy Officer |  |
Related Party Transaction [Line Items] |  |
Expenses from transactions with related parties |  | 555
Former General Counsel |  |
Related Party Transaction [Line Items] |  |
Expenses from transactions with related parties |  | $ 147

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