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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | --- | --- | ---
Investments at cost | $ 196,402 | $ 167,740 |  |
Allowance for losses for loans held for investment | $ 112,507 | $ 83,842 | $ 68,081 | $ 69,189
Preferred stock, stated value (in dollars per share) | $ 0.20 | $ 0.20 |  |
Preferred stock, shares authorized | 20,000,000 | 20,000,000 |  |
Common stock, par value (in dollars per share) | $ 0.20 | $ 0.20 |  |
Common stock, shares authorized | 1,125,000,000.000 | 1,125,000,000.000 |  |
Common stock, shares issued | 430,700,000 | 424,800,000 |  |
Accumulated other comprehensive loss tax benefit | $ (9,949) | $ (7,186) |  |
Common stock held in treasury | 4,400,000 | 1,400,000 |  |
Series A Preferred Stock |  |  |  |
Preferred stock, stated value (in dollars per share) | $ 50 | $ 50 |  |
Preferred stock, shares issued | 3,300,000 | 3,300,000 |  |
Series B Preferred Stock |  |  |  |
Preferred stock, stated value (in dollars per share) | $ 100 | $ 100 |  |
Preferred stock, shares issued | 4,000,000 | 4,000,000 |  |

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