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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Description of Business (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jun. 30, 2018
Sep. 30, 2019
Dec. 31, 2018
May 04, 2018
Mar. 31, 2018
Dec. 31, 2017
DESCRIPTION OF BUSINESS            
Common Stock, Par or Stated Value Per Share   $ 0.01 $ 0.01 $ 0.01 $ 1.00 $ 1.00
Reclassification From Common Stock $ 66,500          
Reclassification Into Paid In Capital 66,500          
Common stock            
DESCRIPTION OF BUSINESS            
Reclassification due to change in par value (66,513)          
Paid-in Capital            
DESCRIPTION OF BUSINESS            
Reclassification due to change in par value $ 66,513