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Consolidated Statements of Shareholders' Equity (Unaudited) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2012 | Mar. 31, 2011
Beginning balance | $ 714,814 | $ 643,855
Exercise of stock options | 1,355 | 19
Tax benefit from exercise of stock options | 110 | 2
Stock-based compensation expense | 405 | 590
Cash dividends declared |  |
Common ($0.085 per share) | (8,903) | (9,017)
Net earnings | 22,268 | 16,600
Other comprehensive income | (42) | 2,555
Ending balance | 730,007 | 654,604
Common Stock |  |
Beginning balance | 479,973 | 490,226
Beginning balance, shares | 104,482 | 106,076
Exercise of stock options | 1,355 | 19
Exercise of stock options, Shares | 225 | 2
Tax benefit from exercise of stock options | 110 | 2
Stock-based compensation expense | 405 | 590
Cash dividends declared |  |
Ending balance | 481,843 | 490,837
Ending balance, shares | 104,707 | 106,078
Retained Earnings |  |
Beginning balance | 193,372 | 147,444
Cash dividends declared |  |
Common ($0.085 per share) | (8,903) | (9,017)
Net earnings | 22,268 | 16,600
Ending balance | 206,737 | 155,027
Accumulated Other Comprehensive Income/(Loss) |  |
Beginning balance | 41,469 | 6,185
Cash dividends declared |  |
Other comprehensive income | (42) | 2,555
Ending balance | $ 41,427 | $ 8,740

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