XML 122 R92.htm IDEA: XBRL DOCUMENT v3.21.1
LEASE - Finance leases - Gross difference (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Finance leases, gross difference    
Total future minimum lease payments $ 25,220  
Less: imputed interest 963  
NPV for future minimum lease payments $ 24,257 $ 39,074
Total future minimum lease payments   41,130
Less: imputed interest   2,056
NPV for future minimum lease payments   $ 39,074