Other Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Prepaid expenses and other current assets
Valued-added tax recoverable	$ 1,182	$ 1,099
Prepaid expenses	6,011	2,846
Advance to suppliers and other current assets	2,782	518
Income tax receivable	0	3,526
Total	$ 9,975	$ 7,989