Accounts Receivable, Net and Revenue Concentrations - Revenue by Significant Customer (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015		Dec. 31, 2014
Revenue, Major Customer [Line Items]
Net sales	$ 160,542	$ 169,185	$ 170,986	$ 150,658	$ 162,110	$ 160,467	$ 147,551	$ 132,705	$ 651,371	$ 602,833		$ 562,329
Net trade receivables	119,522				117,761				119,522	117,761
Revenue, Net | Comcast Corporation
Revenue, Major Customer [Line Items]
Net sales									$ 149,476	$ 129,475	[1]	$ 0	[1]
Concentration risk									22.90%	21.50%	[1]	0.00%	[1]
Revenue, Net | DIRECTV
Revenue, Major Customer [Line Items]
Net sales									$ 68,110	$ 74,857		$ 58,622
Concentration risk									10.50%	12.40%		10.40%
Trade Accounts Receivable | Customer Concentration Risk | Comcast Corporation
Revenue, Major Customer [Line Items]
Net trade receivables	23,700				$ 29,400				$ 23,700	$ 29,400
Concentration risk									19.00%	24.10%
Trade Accounts Receivable | Customer Concentration Risk | DIRECTV
Revenue, Major Customer [Line Items]
Net trade receivables	$ 12,900								$ 12,900
Concentration risk									10.30%

[1] Net sales to this customer did not total more than 10% of our total net sales in this period.