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Unaudited Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified | 9 Months Ended
--- | ---
Sep. 30, 2013 | Sep. 30, 2012
Operating Activities |  |
Net income | $ 69,098 | $ 54,758
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Provision for loan losses | 5,085 | 19,250
Net amortization of investment securities premiums and discounts | 55,043 | 48,712
Federal Home Loan Bank stock dividends | 0 | (5)
Mortgage loans held for sale originated or acquired | (760,860) | (844,155)
Proceeds from sales of mortgage loans held for sale | 904,066 | 872,659
Gain on sale of loans | (23,582) | (23,063)
Loss on sale of investments | 299 | 0
Stock-based compensation expense, net of tax benefits | 800 | 255
Excess tax deficiencies from stock-based compensation | 219 | 8
Depreciation of premises and equipment | 7,408 | 7,384
Loss on sale of other real estate owned and writedown, net | 1,276 | 11,671
Amortization of core deposit intangibles | 1,684 | 1,619
Net increase in accrued interest receivable | (2,628) | (4,398)
Net decrease (increase) in other assets | 3,459 | (3,649)
Net decrease in accrued interest payable | (1,290) | (1,172)
Net increase in other liabilities | 12,526 | 13,082
Net cash provided by operating activities | 272,603 | 152,956
Investing Activities |  |
Proceeds from sales, maturities and prepayments of investment securities, available-for-sale | 1,676,928 | 1,397,533
Purchases of investment securities, available-for-sale | (1,321,504) | (1,873,893)
Principal collected on loans | 854,553 | 706,240
Loans originated or acquired | (1,121,384) | (716,729)
Net addition of premises and equipment and other real estate owned | (6,861) | (7,896)
Proceeds from sale of other real estate owned | 18,131 | 28,483
Net sale (purchase) of non-marketable equity securities | 583 | (664)
Net cash received from acquisitions | 26,155 | 0
Net cash provided by (used in) investment activities | 126,601 | (466,926)
Financing Activities |  |
Net (decrease) increase in deposits | (301,759) | 381,884
Net increase in securities sold under agreements to repurchase | 24,805 | 156,193
Net decrease in Federal Home Loan Bank advances | (35,098) | (152,025)
Net (decrease) increase in federal funds purchased and other borrowed funds | (1,458) | 264
Cash dividends paid | (21,153) | (28,052)
Excess tax deficiencies from stock-based compensation | (219) | (8)
Proceeds from stock options exercised | 3,322 | 81
Net cash (used in) provided by financing activities | (331,560) | 358,337
Net increase in cash and cash equivalents | 67,644 | 44,367
Cash and cash equivalents at beginning of period | 187,040 | 128,032
Cash and cash equivalents at end of period | 254,684 | 172,399
Supplemental Disclosure of Cash Flow Information |  |
Cash paid during the period for interest | 23,120 | 28,721
Cash paid during the period for income taxes | 17,283 | 18,081
Supplemental Disclosure of Non-Cash Investing Activities |  |
Sale and refinancing of other real estate owned | 3,549 | 1,578
Transfer of loans to other real estate owned | 13,091 | 21,029
Fair value of common stock shares issued | 45,033 | 0
Cash consideration for outstanding shares | 24,858 | 0
Fair value of assets acquired | 630,569 | 0
Liabilities assumed | $ 560,678 | $ 0

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