Accounts Receivable, Net and Revenue Concentrations - Significant Customers (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Revenue and Accounts Receivable, Major Customer [Line Items]
Net sales	$ 177,580	$ 170,986	$ 338,986	$ 321,644
Accounts receivable, net	147,738		147,738		$ 124,592
Sales | Comcast Corporation
Revenue and Accounts Receivable, Major Customer [Line Items]
Net sales	$ 42,951	$ 36,366	$ 85,198	$ 75,975
Concentration risk percentage	24.20%	21.30%	25.10%	23.60%
Sales | DIRECTV
Revenue and Accounts Receivable, Major Customer [Line Items]
Net sales	$ 17,826	$ 20,035	$ 34,458	$ 36,854
Concentration risk percentage	10.00%	11.70%	10.20%	11.50%
Trade accounts receivable | Comcast Corporation
Revenue and Accounts Receivable, Major Customer [Line Items]
Concentration risk percentage			20.60%		19.00%
Accounts receivable, net	$ 30,491		$ 30,491		$ 23,716
Trade accounts receivable | DIRECTV
Revenue and Accounts Receivable, Major Customer [Line Items]
Concentration risk percentage			10.60%		10.30%
Accounts receivable, net	$ 15,718		$ 15,718		$ 12,878