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RESTRUCTURING, IMPAIRMENT AND OTHER COSTS - Restructuring and Executive Severance (Details) - Executive Severance - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Restructuring Reserve        
Accrued beginning balance     $ 247  
Costs Incurred $ 0 $ 0 319 $ 711
Payments     (384)  
Expenses/ Charges     0  
Accrued ending balance $ 182   $ 182