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Consolidated Statements of Cash Flows (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Operating activities: |  |  |
Net income | $ 107,835,000 | $ 127,149,000 | $ 130,023,000
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Provision for probable loan losses | 27,959,000 | 17,318,000 | 22,812,000
Specific reserve, other real estate owned | 1,776,000 | 9,806,000 | 657,000
Accretion of time deposit discounts |  | (11,000) | (14,000)
Depreciation of bank premises and equipment | 26,756,000 | 34,935,000 | 35,395,000
Gain on sale of bank premises and equipment | (538,000) | (361,000) | (22,000)
Loss (gain) on sale of other real estate owned | 488,000 | (738,000) | (266,000)
Accretion of investment securities discounts | (3,195,000) | (2,081,000) | (1,693,000)
Amortization of investment securities premiums | 30,501,000 | 18,362,000 | 13,211,000
Investment securities transactions, net | (38,446,000) | (17,285,000) | (33,209,000)
Impairment charges on available for sale securities | 1,039,000 | 977,000 | 8,416,000
Accretion of junior subordinated debenture discounts |  | 9,000 | 35,000
Amortization of identified intangible assets | 4,651,000 | 5,293,000 | 5,284,000
Stock based compensation expense | 474,000 | 387,000 | 534,000
Earnings from affiliates and other investments | (9,892,000) | (11,633,000) | (15,023,000)
Deferred tax expense (benefit) | 7,923,000 | (2,299,000) | (3,532,000)
Decrease in accrued interest receivable | 968,000 | 3,658,000 | 6,071,000
(Increase) decrease in other assets | (5,392,000) | 2,303,000 | 7,824,000
Increase (decrease) in other liabilities | 7,106,000 | (4,966,000) | 1,652,000
Net cash provided by operating activities | 160,013,000 | 180,823,000 | 178,155,000
Investing activities: |  |  |
Proceeds from maturities of securities | 1,125,000 | 1,425,000 | 4,423,000
Proceeds from sales and calls of available for sale securities | 1,382,231,000 | 1,102,849,000 | 1,149,021,000
Purchases of available for sale securities | (3,081,034,000) | (2,231,330,000) | (2,666,596,000)
Principal collected on mortgage backed securities | 1,294,197,000 | 999,419,000 | 1,085,817,000
Net decrease in loans | 170,072,000 | 306,915,000 | 164,241,000
Purchases of other investments | (4,228,000) | (11,941,000) | (7,438,000)
(Contributions) distributions from other investments | (7,410,000) | 33,320,000 | 20,910,000
Purchases of bank premises and equipment | (62,030,000) | (20,393,000) | (15,953,000)
Proceeds from sales of bank premises and equipment | 7,575,000 | 1,719,000 | 2,005,000
Proceeds from sales of other real estate owned | 38,766,000 | 25,324,000 | 8,362,000
Purchase of identified intangible asset | (280,000) | (174,000) | (235,000)
Net cash (used in) provided by investing activities | (261,016,000) | 207,133,000 | (255,443,000)
Financing activities: |  |  |
Net increase in non-interest bearing demand deposits | 538,732,000 | 287,942,000 | 122,277,000
Net increase in savings and interest bearing demand deposits | 159,458,000 | 184,851,000 | 260,290,000
Net (decrease) increase in time deposits | (357,069,000) | (126,248,000) | 38,998,000
Net decrease in securities sold under repurchase agreements | (218,950,000) | (84,641,000) | (8,547,000)
Other borrowed funds, net | 254,866,000 | (532,619,000) | (320,845,000)
Repayment of long-term debt |  | (10,400,000) |
Purchase of treasury stock | (1,716,000) | (6,435,000) | (6,949,000)
Redemption of Series A preferred shares | (216,000,000) |  |
Proceeds from stock transactions | 51,000 | 113,000 | 484,000
Payments of cash dividends - common | (26,894,000) | (25,648,000) | (24,444,000)
Payments of cash dividends - preferred | (10,260,000) | (10,800,000) | (10,800,000)
Net cash provided by (used in) financing activities | 122,218,000 | (323,885,000) | 50,464,000
Increase (decrease) in cash and cash equivalents | 21,215,000 | 64,071,000 | (26,824,000)
Cash and cash equivalents at beginning of year | 261,885,000 | 197,814,000 | 224,638,000
Cash and cash equivalents at end of year | 283,100,000 | 261,885,000 | 197,814,000
Supplemental cash flow information: |  |  |
Interest paid | 77,431,000 | 97,699,000 | 116,037,000
Income taxes paid | 36,303,000 | 60,922,000 | 78,435,000
Non-cash investing and financing activities: |  |  |
Purchases of available-for-sale securities not yet settled |  | 72,538,000 | 160,216,000
Net transfers from loans to other real estate owned | 54,441,000 | 32,005,000 | 59,429,000
Accrued dividends, preferred shares |  | $ 1,350,000 | $ 1,350,000

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