Commitments and Contingencies (Narrative) (Details)		3 Months Ended	9 Months Ended
	Sep. 30, 2015 USD ($) ft²	Sep. 30, 2015 USD ($) ft² shares	Sep. 30, 2015 USD ($) ft²	Sep. 30, 2014 USD ($)
Long-term Purchase Commitment [Line Items]
New operating lease square feet | ft²	16,085	16,085	16,085
Margin reduction of commitment amount			$ 0	$ 2,100,000
Purchase commitments	$ 35,200,000
Pending Litigation
Long-term Purchase Commitment [Line Items]
Loss contingency accrual	0	$ 0	$ 0
Manufacturing and Service Agreement as Part of Asset Acquisition
Long-term Purchase Commitment [Line Items]
Purchase obligation, term			5 years
Minimum margin to be paid			$ 25,000,000
Purchase commitments	$ 15,800,000
Share-based payments for content arrangements | Sony
Long-term Purchase Commitment [Line Items]
Shares of restricted stock to be issued in the fourth quarter of 2015 | shares		25,000