Subsequent Event (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended		0 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Oct. 30, 2014 Subsequent Event [Member]
Subsequent Event [Line Items]
Quarterly dividend declared, per common share (in dollars per share)	$ 0.125	$ 0	$ 0.25	$ 0	$ 0.125
Dividends declared					$ 1.6