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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Recent Accounting Pronouncements (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Cumulative adjustment to retained earnings   $ (576)
ASU 2016-13 | Adjustment    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Cumulative adjustment to retained earnings $ (100)