XML 29 R39.htm IDEA: XBRL DOCUMENT v3.19.3
BASIS OF PRESENTATION AND SIGNIFICANT ACCOUNTING POLICIES - Gain on Litigation Settlement (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Accounting Policies [Abstract]        
Gain (loss) on litigation settlement $ 300 $ 0 $ 6,586 $ 0
Cash received from gain on litigation settlement     5,200  
Liabilities waived due to litigation settlement     $ 1,400