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Details Of Certain Accounts - Other Current Assets (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]    
Contract assets (Note 9) $ 273 $ 5,829
Prepaids 15,222 10,306
Deferred costs (Note 9) 26,644 27,368
Other receivable (Note 13) 26,000 0
Other 9,625 8,091
Total other current assets $ 77,764 $ 51,594