Annual report pursuant to Section 13 and 15(d)

RESTRUCTURING AND SEVERANCE EXPENSES (Details)

v3.19.1
RESTRUCTURING AND SEVERANCE EXPENSES (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]      
Restructuring and severance expenses $ 2,347 $ 0 $ 0
Accounts Payable and Accrued Liabilities      
Restructuring Cost and Reserve [Line Items]      
Amount of restructuring that remains unpaid $ 1,200