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Stockholders' Equity (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2013 | Jun. 30, 2014 Subsequent Event
Dividends declared per common share | $ 0.40 | $ 0.40 | $ 0.31 |
Dividends payable date | Jan. 15, 2014 |  |  | Apr. 15, 2014
Dividends payable, date of record | Dec. 23, 2013 |  |  | Mar. 14, 2014
Common stock dividends paid | $ (39,297) |  | $ 0 | $ (39,400)

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