Commitments and Contingencies (Narrative) (Details)	3 Months Ended		12 Months Ended
	Dec. 31, 2015 USD ($) ft² Quantity shares	Sep. 30, 2015 shares	Dec. 31, 2015 USD ($) ft² Quantity shares	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Long-term Purchase Commitment [Line Items]
Long-term Purchase Commitment, Settlement Cost			$ 8,500,000
Purchase commitments			$ 24,500,000
Shares of restricted stock issued during the fourth quarter of 2015 | shares			352,000
Resolve of loss contingency related to a supply agreement					$ 11,400,000
Pending Litigation [Member]
Long-term Purchase Commitment [Line Items]
Loss contingency accrual	$ 0		$ 0
Standby Letters of Credit [Member]
Long-term Purchase Commitment [Line Items]
Number of irrevocable standby letters of credit | Quantity	5		5
Maximum capacity to guarantee under existing letters of credit	$ 6,500,000		$ 6,500,000
Irrevocable standby letters of credit, amount outstanding	$ 0		$ 0
Manufacturing and Service Agreement as Part of Asset Acquisition [Member]
Long-term Purchase Commitment [Line Items]
Purchase obligation, term			5 years
Minimum margin to be paid			$ 25,000,000
Purchases, Margin Reduction of Commitment Amount			400,000	$ 2,100,000	7,100,000
Long-term Purchase Commitment, Settlement Cost			8,500,000
Long-term Purchase Commitment, Settlement of Remaining Balance			$ 15,400,000
Content Arrangements | Paramount
Long-term Purchase Commitment [Line Items]
Shares of restricted stock to be issued in the first quarter of 2016 | shares	50,000
Content Arrangements | Sony
Long-term Purchase Commitment [Line Items]
Shares of restricted stock issued during the fourth quarter of 2015 | shares		25,000
Operating Lease [Member]
Long-term Purchase Commitment [Line Items]
Lease Extension Period			5 years
New operating lease square feet | ft²	16,085		16,085
Rent expense, net of sublease income under operating lease agreements			$ 18,000,000	$ 16,800,000	$ 12,300,000