XML 129 R95.htm IDEA: XBRL DOCUMENT v3.20.1
Property, Plant and Equipment - Lease liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jan. 01, 2019
Dec. 31, 2018
Lease liabilities      
Current portion (classified under other current liabilities) $ 1,432    
Non-current portion (classified under other non-current liabilities) 2,788    
Total lease liabilities $ 4,220 $ 5,899 $ 0