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Stockholders' Equity (Tables) | 3 Months Ended
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Mar. 31, 2013
Common Stock [Member] |
Stockholders' Equity | Dividends. For 2013, the Company declared the following dividends on its common stock:
Declaration Date |  | Record Date |  |  | Payment Date |  |  | Amount |
February 27, 2013 |  |  | March 28, 2013 |  |  |  | April 12, 2013 |  |  | $ | 0.40 |
8.625% Series A Cumulative Redeemable Preferred Stock [Member] |
Stockholders' Equity | For 2013, the Company declared the following dividends on its 8.625% Series A Cumulative Redeemable Preferred Stock (“Series A Preferred Stock”):
Declaration Date |  | Record Date |  | Payment Date |  | Amount |
March 15, 2013 |  | March 28, 2013 |  | April 15, 2013 |  | $ | 0.5391 |

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- Definition Tabular disclosure of all or some of the information related to dividends declared, but not paid, as of the financial reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 32 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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