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Unaudited Condensed Consolidated Statements of Changes in Stockholders' Equity (USD $) In Thousands, except Share data | Total | Common Stock | Paid-in Capital | Retained Earnings Substantially Restricted | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | ---
Balance, beginning at Dec. 31, 2011 | $ 850,227 | $ 719 | $ 642,882 | $ 173,139 | $ 33,487
Balance, beginning, shares at Dec. 31, 2011 |  | 71,915,073 |  |  |
Net income | 54,758 |  |  | 54,758 |
Comprehensive income (loss), accumulated other comprehensive income | 14,369 |  |  |  | 14,369
Comprehensive income, total | 69,127 |  |  |  |
Cash dividends declared | (28,052) |  |  | (28,052) |
Stock issuances under stock incentive plans, shares |  | 22,149 |  |  |
Stock issuances under stock incentive plans, value | 323 | 0 | 323 |  |
Stock-based compensation and related taxes | (1,468) |  | (1,468) |  |
Balance, ending at Sep. 30, 2012 | 890,157 | 719 | 641,737 | 199,845 | 47,856
Balance, ending, shares at Sep. 30, 2012 |  | 71,937,222 |  |  |
Balance, beginning at Dec. 31, 2012 | 900,949 | 719 | 641,737 | 210,531 | 47,962
Balance, beginning, shares at Dec. 31, 2012 | 71,937,222 | 71,937,222 |  |  |
Net income | 69,098 |  |  | 69,098 |
Comprehensive income (loss), accumulated other comprehensive income | (37,979) |  |  |  | (37,979)
Comprehensive income, total | 31,119 |  |  |  |
Cash dividends declared | (32,299) |  |  | (32,299) |
Stock issuances under stock incentive plans, shares |  | 227,597 |  |  |
Stock issuances under stock incentive plans, value | 3,502 | 2 | 3,500 |  |
Stock issued in connection with acquisitions, shares |  | 2,143,132 |  |  |
Stock issued in connection with acquisitions, value | 45,034 | 22 | 45,012 |  |
Stock-based compensation and related taxes | (498) |  | (498) |  |
Balance, ending at Sep. 30, 2013 | $ 947,807 | $ 743 | $ 689,751 | $ 247,330 | $ 9,983
Balance, ending, shares at Sep. 30, 2013 | 74,307,951 | 74,307,951 |  |  |

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