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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2012 | Sep. 30, 2011
Operating activities: |  |
Net income | $ 82,115 | $ 96,776
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Provision for probable loan losses | 16,741 | 7,833
Specific reserve, other real estate owned | 2,032 | 8,075
Accretion of time deposit discounts |  | (11)
Depreciation of bank premises and equipment | 20,335 | 24,749
Gain on sale of bank premises and equipment | (734) | (267)
Gain on sale of other real estate owned | (239) | (49)
Accretion of investment securities discounts | (2,346) | (1,387)
Amortization of investment securities premiums | 20,290 | 13,968
Investment securities transactions | (35,527) | (9,448)
Impairment charges on available-for-sale investment securities | 647 | 701
Amortization of junior subordinated debenture discounts |  | 9
Amortization of identified intangible assets | 3,463 | 3,950
Stock based compensation expense | 366 | 280
Earnings from affiliates and other investments | (8,836) | (11,542)
Deferred tax expense | 2,267 | 766
Decrease in accrued interest receivable | 1,516 | 5,481
Net (increase) decrease in other assets | (271) | 48,944
Net increase in other liabilities | 16,793 | 7,976
Net cash provided by operating activities | 118,612 | 196,804
Investing activities: |  |
Proceeds from maturities of held-to-maturity securities | 1,125 | 1,300
Proceeds from sales and calls of available for sale securities | 1,279,963 | 926,869
Purchases of available for sale securities | (2,383,774) | (1,596,603)
Principal collected on mortgage-backed securities | 955,550 | 703,618
Net decrease in loans | 86,501 | 181,902
Purchases of other investments | (2,956) | (1,941)
Distributions received on other investments | 8,845 | 23,504
Purchases of bank premises and equipment | (23,650) | (13,450)
Proceeds from sales of other real estate owned | 25,643 | 7,477
Proceeds from sale of bank premises and equipment | 3,795 | 1,180
Net cash (used in) provided by investing activities | (48,958) | 233,856
Financing activities: |  |
Net increase in non-interest bearing demand deposits | 182,477 | 163,707
Net (decrease) increase in savings and interest bearing demand deposits | (22,938) | 102,312
Net decrease in time deposits | (114,460) | (111,980)
Net decrease in securities sold under repurchase agreements | (175,017) | (46,453)
Net increase (decrease) in other borrowed funds | 120,900 | (469,036)
Repayment of long-term debt |  | (10,400)
Purchase of treasury stock | (1,092) | (6,333)
Redemption of senior preferred shares | (40,000) |
Proceeds from stock transactions | 43 | 112
Payments of dividends on common stock | (13,450) | (12,864)
Payments of dividends on preferred stock | (7,911) | (8,100)
Net cash used in financing activities | (71,448) | (399,035)
(Decrease) increase in cash and cash equivalents | (1,794) | 31,625
Cash and cash equivalents at beginning of period | 261,885 | 197,814
Cash and cash equivalents at end of period | 260,091 | 229,439
Supplemental cash flow information: |  |
Interest paid | 60,651 | 75,533
Income taxes paid | 22,271 | 45,022
Non-cash investing and financing activities: |  |
Accrued dividends, preferred shares | 1,100 | 1,350
Dividends declared, not yet paid on common stock | 13,445 | 12,784
Net transfer from loans to other real estate owned | 55,694 | 46,119
Purchases of available-for-sale securities not yet settled | 442,240 |
Sales of securities available-for-sale not yet settled |  | $ 2,027

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