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Parent Statements of Cash Flows (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Operating Activities |  |  |
Net income | $ 95,644 | $ 75,516 | $ 17,471
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Loss on sale of investments | 299 | 0 | (346)
Excess tax deficiencies from stock-based compensation | 223 | 8 | 0
Net cash provided by operating activities | 334,095 | 183,793 | 186,843
Investing Activities |  |  |
Proceeds from sales, maturities and prepayments of investment securities, available-for-sale | 1,864,334 | 2,041,416 | 1,024,508
Net addition of premises and equipment | (8,977) | (10,730) | (17,492)
Net cash provided by (used in) investment activities | 149,237 | (579,646) | (529,096)
Financing Activities |  |  |
Net increase in other borrowed funds | (1,502) | 180 | (9,867)
Cash dividends paid | (44,232) | (47,472) | (37,395)
Excess tax deficiencies from stock-based compensation | (223) | (8) | 0
Proceeds from stock options exercised | 4,326 | 81 | 0
Net cash used in financing activities | (514,715) | 454,861 | 365,194
Net increase (decrease) in cash and cash equivalents | (31,383) | 59,008 | 22,941
Cash and cash equivalents at beginning of period | 187,040 | 128,032 | 105,091
Cash and cash equivalents at end of period | 155,657 | 187,040 | 128,032
Parent Company |  |  |
Operating Activities |  |  |
Net income | 95,644 | 75,516 | 17,091
Adjustments to reconcile net income to net cash provided by operating activities: |  |  |
Subsidiary income (in excess of) less than dividends distributed | (37,129) | (1,040) | 22,825
Loss on sale of investments | 3,248 | 0 | 0
Excess tax deficiencies from stock-based compensation | 223 | 8 | 0
Net change in other assets and other liabilities | 2,575 | 3,684 | 1,215
Net cash provided by operating activities | 64,561 | 78,168 | 41,131
Investing Activities |  |  |
Proceeds from sales, maturities and prepayments of investment securities, available-for-sale | 26,561 | 787 | 1,376
Changes in investment securities and other stock - intercompany | (946) | (19,183) | 0
Equity contribution to subsidiaries | (11,336) | (28,500) | (1,110)
Net addition of premises and equipment | (603) | (2,927) | (1,920)
Net cash provided by (used in) investment activities | 13,676 | (49,823) | (1,654)
Financing Activities |  |  |
Net increase in other borrowed funds | 144 | 143 | 143
Cash dividends paid | (44,232) | (47,472) | (37,395)
Excess tax deficiencies from stock-based compensation | (223) | (8) | 0
Proceeds from stock options exercised | 4,326 | 81 | 0
Net cash used in financing activities | (39,985) | (47,256) | (37,252)
Net increase (decrease) in cash and cash equivalents | 38,252 | (18,911) | 2,225
Cash and cash equivalents at beginning of period | 12,427 | 31,338 | 29,113
Cash and cash equivalents at end of period | $ 50,679 | $ 12,427 | $ 31,338

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