XML 63 R51.htm IDEA: XBRL DOCUMENT v3.20.2
PROPERTY AND EQUIPMENT - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Property Plant And Equipment [Abstract]        
Depreciation expense $ 3,900 $ 3,200 $ 11,147 $ 8,958