Legal Proceedings (Details) (USD $)		0 Months Ended
	Sep. 30, 2014	Oct. 04, 2013 Securities Class Action Settlement Payment [Member]	Aug. 23, 2014 Posting Order Litigation Settlement Payment [Member]
Loss Contingencies [Line Items]
Aggregate range of reasonably possible losses, minimum	$ 0
Aggregate range of reasonably possible losses, maximum	15,000,000
Litigation settlement amount		(11,800,000)	(3,750,000)
Litigation settlement expenses			$ 150,000