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Note 12 - Income Taxes (Detail) - Deferred Tax Assets and Liabilities (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Deferred Tax Assets |  |
Loan loss allowance, due to differences in computation of bad debts | $ 100,774 | $ 109,686
Write-down on equity securities | 3,374 | 3,609
Stock option compensation expense | 16,120 | 16,048
State tax | 4,479 | 3,744
Non-accrual interest | 3,208 | 2,048
Write-down on other real estate owned | 10,302 | 14,148
Accural for litigation | 2,415 |
Unrealized loss on interest rate swaps |  | 1,097
Unrealized loss on securities available-for-sale, net |  | 6,311
Other, net | 3,544 | 3,536
Gross deferred tax assets | 144,216 | 160,227
Deferred Tax Liabilities |  |
Core deposit intangibles | (1,632) | (3,919)
Investment in aircraft financing trust and venture capital partnerships | (19,684) | (21,628)
Unrealized gain on securities available-for-sale, net | (338) |
Dividends on Federal Home Loan Bank common stock | (3,071) | (2,788)
Other, net | (5,084) | (5,646)
Gross deferred tax liabilities | (29,809) | (33,981)
Valuation allowance | (2,125) | (2,533)
Net deferred tax assets | $ 112,282 | $ 123,713

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