Accounting Policies - Financial Data for Variable Interest Entities - Income Statement (Details) - USD ($) $ in Thousands	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014
Accounting Policies [Abstract]
Revenue	$ 22,037	$ 58,942
Gross profit	2,778	9,370
Net income	$ 144	$ 714

Variable Interest Entities, Summarized Financial Information, Gross Profit (Loss)

No definition available.

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