Segment Information - Narratives (Details)	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2014 Customer segment	Sep. 26, 2014 segment	Dec. 31, 2015 Customer segment	Dec. 31, 2014 Customer	Dec. 31, 2013 Customer
Concentration Risk [Line Items]
Number of reportable segments | segment	2	1	2
Customer concentration risk ten percent or more of net revenue [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage			0.00%
Number Of Customers Accounting For More Than Ten Percent Of Revenue Other Than Comcast	0		0	0	0
Net Revenue [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage			10.00%
Number Of Customers Accounting For More Than Ten Percent Of Revenue Other Than Comcast | Customer	0		0	0	0
Net Revenue [Member] | Comcast [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage			12.00%	16.00%	12.00%