Basis of Presentation - Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Revenue	$ 9,700,000	$ 0
Non-customer [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Litigation Settlement, Amount	$ 0	$ 7,900,000