XML 60 R49.htm IDEA: XBRL DOCUMENT v3.20.2
Details Of Certain Accounts - Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Accrued payroll and related benefits $ 21,800 $ 31,417
Investee losses in excess of investment (Note 4) 2,248 4,069
Deferred revenue (Note 10) 10,530 11,568
Asset retirement obligations (Note 14) 29,562 0
Derivative liability (Note 19) 0 1,002
Other 16,128 14,333
Total accrued liabilities $ 80,268 $ 62,389