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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY AND COMPREHENSIVE INCOME (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Net unrealized gain (loss) on investment securities available-for-sale, taxes (benefits) | $ (13,007) | $ (4,028) | $ 52,749
Reclassification for net gain (loss) included in net income | (12,084) | 5,714 | (63,730)
Unrealized gain as a result of desecuritization, taxes |  |  | 22,124
Noncredit-related impairment loss on securities, taxes (benefits) | (2,143) | (6,492) | (5,935)
Foreign currency translation adjustments, taxes (benefits) | $ (438) | $ 1,098 |
Issuance of common stock from various private placements, shares |  |  | 23,247,012
Issuance of common stock from public offering, shares |  |  | 12,650,000
Issuance of shares pursuant to various stock compensation plans and agreements, shares | 1,024,925 | 1,867,194 | 488,256
Issuance of shares pursuant to Director retainer fee, shares | 27,831 | 17,910 | 22,386
Cancellation of common stock due to forfeitures of issued restricted stock, shares | 240,193 | 343,029 | 76,962
Purchase of treasury stock purchased due to vesting of restricted stock, shares | 29,610 | 65,834 | 37,020
Repurchase of common stock warrants and preferred stock, shares | 1,517,555 |  |
Preferred stock, Series A, non-cumulative convertible |  |  |
Converted shares of common stock, shares | 2,014 |  | 9,968,760
Shares of preferred stock converted, shares | 31 |  | 110,764
Preferred stock, Series B, cumulative |  |  |
Repurchase of common stock warrants and preferred stock, shares |  | 306,546 |
Preferred stock, Series C, cumulative convertible |  |  |
Converted shares of common stock, shares |  | 37,103,734 |
Shares of preferred stock converted, shares |  | 335,047 |
Issuance of shares, stock issuance costs, shares |  |  | 335,047

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