XML 65 R54.htm IDEA: XBRL DOCUMENT v3.19.2
LEASES - Lease Cost (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2018
Jun. 30, 2019
Lease, Cost [Abstract]    
Operating Lease, Cost $ 1,822 $ 3,648
Short-term Lease, Cost 0 1
Variable Lease, Cost 633 1,230
Lease, Cost $ 2,455 $ 4,879