Equity Common Stock (Details)	Dec. 31, 2013	Dec. 31, 2012
Class of Stock [Line Items]
Common Stock, Shares Authorized	170,000,000	170,000,000
Common Stock, Shares, Issued	79,837,612	78,743,518
Common Stock, Shares, Outstanding	79,837,612	78,743,518
Common Stock, Capital Shares Reserved for Future Issuance	90,162,388	91,256,482