Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity Schedule of Dividends Declared (Details)

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Stockholders' Equity Schedule of Dividends Declared (Details) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dividends Payable [Line Items]              
Dividends Payable, Date Declared Sep. 16, 2014 Jun. 17, 2014 Mar. 17, 2014 Dec. 17, 2013 Sep. 11, 2013    
Dividends Payable, Date of Record Sep. 30, 2014 Jul. 02, 2014 Mar. 31, 2014 Dec. 27, 2013 Sep. 26, 2013    
Dividends Payable, Date to be Paid Oct. 21, 2014 Jul. 22, 2014 Apr. 21, 2014 Dec. 31, 2013 Oct. 23, 2013    
Common Stock, Dividends, Per Share, Declared $ 0.26 $ 0.26 $ 0.26 $ 0.26 $ 0.28 $ 0.78 $ 0.91