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Equity (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2013
Class of Stock [Line Items] |
Schedule of Stock by Class, Preferred Stock | The following table sets forth the Company's Preferred Stock:
Preferred Stock Issuances |  | Issue Date |  | Number of Shares Outstanding |  | Carrying Value |  | Liquidation Preference Per Share |  | Optional Redemption Date |  | Annual Dividends Payable Per Share
|  |  |  | (in thousands) |  |  |  |  |  |  |  |
December 31, 2013 |  |  |  |  |  |  |  |  |  |  |  |
8.625% Series A Cumulative Redeemable |  | 2/12/1997 |  | 29 |  |  | $ | 29,077 |  |  | $ | 1,000 |  |  | 2/12/2027 |  | $ | 86.25 |
December 31, 2012 |  |  |  |  |  |  |  |  |  |  |  |
8.625% Series A Cumulative Redeemable |  | 2/12/1997 |  | 29 |  |  | $ | 29,077 |  |  | $ | 1,000 |  |  | 2/12/2027 |  | $ | 86.25 |
The following table sets forth the number of shares of Common Stock reserved for future issuance:
| December 31,
| 2013 |  | 2012
Outstanding stock options and warrants | 889,382 |  |  | 1,144,309 |
Possible future issuance under equity incentive plans | 1,742,237 |  |  | 2,047,550 |
| 2,631,619 |  |  | 3,191,859 |
Common Stock [Member] |
Class of Stock [Line Items] |
Schedule of Dividends Payable | The following table sets forth the Company's estimated taxability to the common stockholders of dividends per share for federal income tax purposes:
| Year Ended December 31,
| 2013 |  | 2012 |  | 2011
Ordinary income | $ | 1.28 |  |  | $ | 1.28 |  |  | $ | 1.15 |
Capital gains | 0.26 |  |  | 0.24 |  |  | — |
Return of capital | 0.16 |  |  | 0.18 |  |  | 0.55 |
Total | $ | 1.70 |  |  | $ | 1.70 |  |  | $ | 1.70 |
Preferred Stock [Member] |
Class of Stock [Line Items] |
Schedule of Dividends Payable | The following table sets forth the Company's estimated taxability to the preferred stockholders of dividends per share for federal income tax purposes:
| Year Ended December 31,
| 2013 |  | 2012 |  | 2011
8.625% Series A Cumulative Redeemable: |  |  |  |  |
Ordinary income | $ | 71.56 |  |  | $ | 72.46 |  |  | $ | 86.25 |
Capital gains | 14.69 |  |  | 13.79 |  |  | — |
Total | $ | 86.25 |  |  | $ | 86.25 |  |  | $ | 86.25 |
8.000% Series B Cumulative Redeemable: |  |  |  |  |
Ordinary income | $ | — |  |  | $ | — |  |  | $ | 1.05 |
Capital gains | — |  |  | — |  |  | — |
Total | $ | — |  |  | $ | — |  |  | $ | 1.05 |

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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 + Details
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- Definition Tabular disclosure of an entity's stock, including par or stated value per share, number and dollar amount of share subscriptions, shares authorized, shares issued, shares outstanding, number and dollar amount of shares held in an employee trust, dividend per share, total dividends, share conversion features, par value plus additional paid in capital, the value of treasury stock and other information necessary to a fair presentation, and EPS information. Stock by class includes common, convertible, and preferred stocks which are not redeemable or redeemable solely at the option of the issuer. Includes preferred stock with redemption features that are solely within the control of the issuer and mandatorily redeemable stock if redemption is required to occur only upon liquidation or termination of the reporting entity. If more than one issue is outstanding, state the title of each issue and the corresponding dollar amount; dollar amount of any shares subscribed but unissued and the deduction of subscriptions receivable there from; number of shares authorized, issued, and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21553-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28,29) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d),(e)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27011957&loc=d3e177068-122764 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21488-112644 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 30 -Article 5 Reference 11: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644 Reference 12: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6403732&loc=d3e21300-112643 Reference 13: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 14: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644 + Details
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