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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified | Total | Series B | Series C | Preferred Shares Series B | Preferred Shares Series C | Preferred Shares Series D | Cumulative Preferred Distributions | Common Shares | Cumulative Common Distributions | Additional Paid in Capital | Cumulative Net Income | Cumulative Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2009 | $ 3,091,931 |  |  | $ 83,306 | $ 306,833 |  | $ (153,521) | $ 1,234 | $ (2,632,522) | $ 3,462,209 | $ 2,021,162 | $ 3,230
Balance (in shares) at Dec. 31, 2009 |  |  |  | 3,450,000 | 12,700,000 |  |  | 123,380,335 |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income | 21,351 |  |  |  |  |  |  |  |  |  | 21,351 |
Unrealized gain (loss) on investments | (999) |  |  |  |  |  |  |  |  |  |  | (999)
Common share grants | 1,018 |  |  |  |  |  |  |  |  | 1,018 |  |
Common share grants (in shares) |  |  |  |  |  |  |  | 63,900 |  |  |  |
Repurchase of convertible senior notes | (1,058) |  |  |  |  |  |  |  |  | (1,058) |  |
Distributions | (252,002) |  |  |  |  |  | (29,880) |  | (222,122) |  |  |
Balance at Dec. 31, 2010 | 2,860,241 |  |  | 83,306 | 306,833 |  | (183,401) | 1,234 | (2,854,644) | 3,462,169 | 2,042,513 | 2,231
Balance (in shares) at Dec. 31, 2010 |  |  |  | 3,450,000 | 12,700,000 |  |  | 123,444,235 |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income | 190,440 |  |  |  |  |  |  |  |  |  | 190,440 |
Unrealized gain (loss) on investments | (626) |  |  |  |  |  |  |  |  |  |  | (626)
Common share grants | 1,366 |  |  |  |  |  |  | 1 |  | 1,365 |  |
Common share grants (in shares) |  |  |  |  |  |  |  | 77,300 |  |  |  |
Distributions | (252,119) |  |  |  |  |  | (29,880) |  | (222,239) |  |  |
Balance at Dec. 31, 2011 | 2,799,302 |  |  | 83,306 | 306,833 |  | (213,281) | 1,235 | (3,076,883) | 3,463,534 | 2,232,953 | 1,605
Balance (in shares) at Dec. 31, 2011 |  |  |  | 3,450,000 | 12,700,000 |  |  | 123,521,535 |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Net income | 151,923 |  |  |  |  |  |  |  |  |  | 151,923 |
Unrealized gain (loss) on investments | 1,165 |  |  |  |  |  |  |  |  |  |  | 1,165
Issuance of shares, net | 280,107 |  |  |  |  | 280,107 |  |  |  |  |  |
Issuance of shares, net (in shares) |  |  |  |  |  | 11,600,000 |  |  |  |  |  |
Redemption of shares, net | (228,266) |  |  | (83,306) | (144,960) |  |  |  |  |  |  |
Redemption of shares, net (in shares) |  |  |  | (3,450,000) | (6,000,000) |  |  |  |  |  |  |
Common share grants | 2,595 |  |  |  |  |  |  | 1 |  | 2,594 |  |
Common share grants (in shares) |  |  |  |  |  |  |  | 115,889 |  |  |  |
Excess of liquidation preference over carrying value of preferred shares redeemed | (7,984) | (2,944) | (5,040) |  |  |  |  |  |  | (7,984) |  |
Distributions | (265,044) |  |  |  |  |  | (40,145) |  | (224,899) |  |  |
Balance at Dec. 31, 2012 | 2,733,798 |  |  |  | 161,873 | 280,107 | (253,426) | 1,236 | (3,301,782) | 3,458,144 | 2,384,876 | 2,770
Balance (in shares) at Dec. 31, 2012 |  |  |  |  | 6,700,000 | 11,600,000 |  | 123,637,424 |  |  |  |
Balance at Nov. 30, 2012 |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |  |  |  |  |  |  |
Redemption of shares, net |  |  |  | (83,306) | (144,960) |  |  |  |  |  |  |
Redemption of shares, net (in shares) |  |  |  | (3,450,000) | (6,000,000) |  |  |  |  |  |  |
Balance at Dec. 31, 2012 |  |  |  |  | $ 161,873 |  |  |  |  |  |  |
Balance (in shares) at Dec. 31, 2012 |  |  |  |  | 6,700,000 |  |  |  |  |  |  |

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