Summary of Significant Accounting Policies - Segment Information - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) segment	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of segments | segment			1
Property, plant and equipment, net	$ 54,429		$ 54,429		$ 42,739
Revenues	48,985	$ 53,367	144,924	$ 132,107
Foreign Countries
Segment Reporting Information [Line Items]
Property, plant and equipment, net	11,331		11,331		$ 3,877
Revenues	$ 3,502	$ 1,183	$ 8,678	$ 3,446