SHAREHOLDERS' EQUITY - Dividend Equivalent Liability (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Stockholders' Equity Note [Abstract]
Short-term	$ 496	$ 811
Long-term	527	913
Total	$ 1,023	$ 1,724

Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding.

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