Accounts Receivable, Net and Revenue Concentrations - Revenue by Significant Customer (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue, Major Customer [Line Items]
Net sales	$ 146,315	$ 136,109	$ 276,160	$ 250,831
Sales [Member] | Comcast Corporation [Member]
Revenue, Major Customer [Line Items]
Net sales	15,068	0
Concentration risk	10.30%	0.00%
Sales [Member] | DIRECTV [Member]
Revenue, Major Customer [Line Items]
Net sales	$ 0	$ 22,137	$ 0	$ 42,984
Concentration risk	0.00%	16.30%	0.00%	17.10%