Equity Textuals (Details) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 18, 2013	May 23, 2013	Dec. 31, 2012
Statement of Stockholders' Equity [Abstract]
Common Stock, Shares, Issued	29,789,825	2,213,750		27,498,868
CommonStockIssuedOverAllotment		288,750
Shares Issued, Price Per Share		$ 26.00
CommonStock, Value, Issued From Public Offering		$ 53.9
Stock Registered Under Universal Shelf Registration			100
Amount of Common Stock sold in public stock offering		57.6
Common Stock Available for Future Stock Offerings, Value	$ 42.4