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GOODWILL AND IDENTIFIABLE INTANGIBLE ASSETS - Schedule of Goodwill Roll Forward (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Goodwill [Roll Forward]        
Goodwill beginning of the period   $ 10,997 $ 0  
Accumulated impairment as of beginning of year     0 $ 0
Acquisition accounting adjustments   0 10,997  
Impairment $ (11,000) (10,997) 0  
Goodwill end of the period $ 0 $ 0 $ 10,997