Notes Receivable Notes Receivable (Details) (USD $)	0 Months Ended	3 Months Ended	9 Months Ended		1 Months Ended	3 Months Ended	9 Months Ended
	Jul. 30, 2014	Sep. 30, 2014	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012 Convertible Notes Receivable	Sep. 30, 2014 Convertible Notes Receivable	Sep. 30, 2014 Convertible Notes Receivable	Jul. 31, 2012 Convertible Notes Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Origination of notes receivable		$ 3,000,000			$ 4,000,000
Interest rate on notes receivable								6.00%
Minimum percentage of voting power transferred in corporate transaction	50.00%
Increase in notes receivable			4,000,000			4,000,000	4,000,000
Period borrower cannot sell exclusive features to other customers			24 months
Fair value of convertible notes receivable		$ 8,000,000	$ 8,000,000	$ 0