Subsequent Events (Details) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended	1 Months Ended
	May 31, 2012	Jun. 30, 2014	Jul. 31, 2014 Subsequent Event [Member]
Subsequent Event [Line Items]
Net proceeds from sale of securities	$ 9.1	$ 2.5	$ 0.1
Stock issued, shares		711,959	24,355