XML 58 R45.htm IDEA: XBRL DOCUMENT v3.19.2
Details Of Certain Accounts - Accrued Liabilities (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Accrued payroll and related benefits $ 22,796 $ 43,079
Investee losses in excess of investment (Note 4) 10,000 5,125
Deferred revenue (Note 9) 11,240 10,103
Asset retirement obligations (Note 13) 22,173 0
Derivative liability (Note 17) 4,251 9,311
Other 14,151 17,976
Total accrued liabilities $ 84,611 $ 85,594