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Equity (Tables) | 9 Months Ended
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Sep. 30, 2013
Equity [Abstract] |
Preferred Stock | Preferred Stock The following table presents information regarding the Company’s preferred stock (in thousands):
| September 30, 2013 |  | December 31, 2012
Shares authorized | 50,000 |  |  | 50,000 |
Shares outstanding at end of period |  |  |
8.5% Convertible perpetual preferred stock | 2,650 |  |  | 2,650 |
6.0% Convertible perpetual preferred stock | 2,000 |  |  | 2,000 |
7.0% Convertible perpetual preferred stock | 3,000 |  |  | 3,000 |
Preferred Stock Terms | The following table summarizes information about each series of the Company’s convertible perpetual preferred stock:
|  | Convertible Perpetual Preferred Stock
|  | 8.5% |  | 6.0% |  | 7.0%
Liquidation preference per share |  | $ | 100.00 |  |  | $ | 100.00 |  |  | $ | 100.00 |
Annual dividend per share |  | $ | 8.50 |  |  | $ | 6.00 |  |  | $ | 7.00 |
Conversion rate per share to common stock |  | 12.4805 |  |  | 9.2115 |  |  | 12.8791 |
Conversion date to common stock at Company's option |  | February 20, 2014 |  |  | December 21, 2014 |  |  | November 20, 2015 |
Preferred Stock Dividends | Paid and unpaid dividends included in the calculation of (loss applicable) income available to the Company’s common stockholders and the Company’s basic (loss) earnings per share calculation for the three and nine-month periods ended September 30, 2013 and 2012 as presented in the accompanying unaudited condensed consolidated statements of operations, are included in the tables below (in thousands):
| Three Months Ended September 30,
| 2013 |  | 2012
| Dividends Paid |  | Dividends Unpaid |  | Total |  | Dividends Paid |  | Dividends Unpaid |  | Total
8.5% Convertible perpetual preferred stock | $ | 2,815 |  |  | $ | 2,816 |  |  | $ | 5,631 |  |  | $ | 2,815 |  |  | $ | 2,816 |  |  | $ | 5,631 |
6.0% Convertible perpetual preferred stock | 500 |  |  | 2,500 |  |  | 3,000 |  |  | 500 |  |  | 2,500 |  |  | 3,000 |
7.0% Convertible perpetual preferred stock | — |  |  | 5,250 |  |  | 5,250 |  |  | — |  |  | 5,250 |  |  | 5,250 |
Total | $ | 3,315 |  |  | $ | 10,566 |  |  | $ | 13,881 |  |  | $ | 3,315 |  |  | $ | 10,566 |  |  | $ | 13,881 |
| Nine Months Ended September 30,
| 2013 |  | 2012
| Dividends Paid |  | Dividends Unpaid |  | Total |  | Dividends Paid |  | Dividends Unpaid |  | Total
8.5% Convertible perpetual preferred stock | $ | 14,078 |  |  | $ | 2,816 |  |  | $ | 16,894 |  |  | $ | 14,078 |  |  | $ | 2,816 |  |  | $ | 16,894 |
6.0% Convertible perpetual preferred stock | 6,500 |  |  | 2,500 |  |  | 9,000 |  |  | 6,500 |  |  | 2,500 |  |  | 9,000 |
7.0% Convertible perpetual preferred stock | 7,875 |  |  | 7,875 |  |  | 15,750 |  |  | 7,875 |  |  | 7,875 |  |  | 15,750 |
Total | $ | 28,453 |  |  | $ | 13,191 |  |  | $ | 41,644 |  |  | $ | 28,453 |  |  | $ | 13,191 |  |  | $ | 41,644 |
Common Stock | Common Stock The following table presents information regarding the Company’s common stock (in thousands):
| September 30, 2013 |  | December 31, 2012
Shares authorized | 800,000 |  |  | 800,000 |
Shares outstanding | 490,536 |  |  | 490,359 |
Shares held in treasury | 1,269 |  |  | 1,219 |

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