Earnings per Share Series A-1 Preferred Stock (Details) (Series A-1 Preferred Stock [Member])	0 Months Ended	9 Months Ended
	Feb. 13, 2013	Sep. 30, 2014	Sep. 30, 2013
Series A-1 Preferred Stock [Member]
Series A-1 Preferred Stock [Line Items]
Class A common stock from conversion of Series A-1 Preferred Stock	5,984,232
Weighted average basic shares impact resulting from conversion of preferred stock		5,984,232	5,019,740