Details Of Certain Accounts - Other Current Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Note receivable	$ 10,000	$ 10,000
Other receivables	5,288	0
Prepaid insurance	6,462	5,433
Other prepaids	9,898	10,142
Deferred costs	8,891	609
Spare parts inventory	4,401	4,985
Value added tax receivable	8,995	7,842
Other	129	507
Total other current assets	$ 54,064	$ 39,518
Current note receivable, interest rate (as a percent)	6.00%