Quarterly report pursuant to Section 13 or 15(d)

Shareholders' Equity - Capital Stock (Details)

v2.4.0.8
Shareholders' Equity - Capital Stock (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Jun. 25, 2014
Jun. 24, 2014
Jun. 13, 2014
Dec. 31, 2013
Sep. 30, 2014
Series A Preferred Stock
Sep. 30, 2014
Series A Preferred Stock
Class of Stock [Line Items]              
At the market preferred stock, shares authorized       3,000,000      
At the market shares sold           2,542,490 4,683,709
Common stock, shares authorized 800,000,000 800,000,000 600,000,000   600,000,000    
Proceeds from Issuance of public offering           $ 57,652 $ 105,764
Offering expenses           1,201 2,302
Dividends paid           $ 4,848 $ 11,783
Dividends paid per share on monthly basis           $ 0.1667