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Subsequent Events (Details) (USD $) | 0 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 26, 2012 | Sep. 30, 2012
Dividends payable, date declared |  | Oct. 26, 2012
Common stock, dividends declared | $ 0.05 |
Dividends payable, date to be paid |  | Nov. 20, 2012
Dividends payable, date of record |  | Nov. 09, 2012
Series A [Member] |  |
Cumulative redeemable preferred stock, dividends declared | $ 0.5546875 |
Preferred Stock, Dividend Rate, Percentage |  | 8.875%
Series B [Member] |  |
Cumulative redeemable preferred stock, dividends declared | $ 0.453125 |
Preferred Stock, Dividend Rate, Percentage |  | 7.25%

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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 + Details
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