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Details Of Certain Accounts - Other Non-Current Liabilities (Details) - USD ($)
$ in Thousands
Sep. 30, 2019
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Investee losses in excess of investment (Note 4) $ 0 $ 6,035
Deferred gain on sale of property 0 5,052
Deferred revenue (Note 9) 9,196 15,767
Asset retirement obligations (Note 13) 27,564 0
Derivative liability (Note 17) 0 884
Other 2,248 11,800
Total other non-current liabilities $ 39,008 $ 39,538
Term of lease agreement 15 years