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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified | Mar. 31, 2012 | Dec. 31, 2011
--- | --- | ---
ASSETS |  |
Investment securities available-for-sale, amortized cost | $ 2,737,687 | $ 3,132,968
Allowance for loan losses, loans receivable | 214,253 | 209,876
Allowance for loan losses, covered loans | $ 8,268 | $ 6,647
STOCKHOLDERS' EQUITY |  |
Preferred stock, par value (in dollars per share) | $ 0.001 | $ 0.001
Preferred stock, shares authorized | 5,000,000 | 5,000,000
Common stock, par value (in dollars per share) | $ 0.001 | $ 0.001
Common stock, shares authorized | 200,000,000 | 200,000,000
Common stock, shares issued | 157,003,114 | 156,798,011
Common stock, shares outstanding | 144,870,621 | 149,327,907
Treasury stock, shares | 12,132,493 | 7,470,104
Preferred stock, Series A, non-cumulative convertible |  |
STOCKHOLDERS' EQUITY |  |
Preferred stock, shares issued | 200,000 | 200,000
Preferred stock, shares outstanding | 85,710 | 85,710

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