Summary of Significant Accounting Policies - Segments (Details) $ in Thousands			3 Months Ended								9 Months Ended	12 Months Ended
	Jul. 15, 2016 segment	Jul. 14, 2016 segment	Dec. 31, 2016 USD ($) item	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($) item	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Sep. 30, 2016 segment	Dec. 31, 2016 USD ($) segment item	Dec. 31, 2015 USD ($) item	Dec. 31, 2014 USD ($) item
Product offerings
Number of distributors with more than 10% of company's net sales | item			0				0					0	0	0
Segment Reporting
Number of operating segments	2	1									1	2
Number of Reportable Segments		1									1	2
Net sales | $			$ 130,143	$ 123,573	$ 113,763	$ 48,789	$ 118,810	$ 120,565	$ 107,143	$ 53,890		$ 416,268	$ 400,408	$ 303,511