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Consolidated Statements of Stockholders' Equity (USD $) In Thousands, unless otherwise specified | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income | Treasury Stock | Comprehensive Income
--- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2008 | $ 749,026 | $ 490 | $ 136,867 | $ 605,950 | $ 5,719 |  |
Balance (in shares) at Dec. 31, 2008 |  | 48,971 |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |
Net income | 12,217 |  |  | 12,217 |  |  | 12,217
Other comprehensive income: |  |  |  |  |  |  |
Translation adjustment | 13,043 |  |  |  | 13,043 |  | 13,043
Comprehensive income | 25,260 |  |  |  |  |  | 25,260
Options exercised | 7,627 | 3 | 7,624 |  |  |  |
Options exercised (in shares) |  | 396 |  |  |  |  |
Stock compensation expense | 1,690 |  | 1,690 |  |  |  |
Tax benefit of options exercised | (445) |  | (445) |  |  |  |
Cash dividends declared on common stock, $0.50 per share, for the year ended December 31, 2011 and $0.40 per share, December 31, 2010, and December 31, 2009 | (19,674) |  |  | (19,674) |  |  |
Common stock issued at $30.91, $26.42, and $27.76 per share for the year ended December 31, 2011, December 31, 2010, and December 31, 2009, respectively | 300 |  | 300 |  |  |  |
Common stock issued (in shares) |  | 10 |  |  |  |  |
Balance at Dec. 31, 2009 | 763,784 | 493 | 146,036 | 598,493 | 18,762 |  |
Balance (in shares) at Dec. 31, 2009 |  | 49,377 |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |
Net income | 28,586 |  |  | 28,586 |  |  | 28,586
Other comprehensive income: |  |  |  |  |  |  |
Translation adjustment | (4,135) |  |  |  | (4,135) |  | (4,135)
Comprehensive income | 24,451 |  |  |  |  |  | 24,451
Options exercised | 17,948 | 7 | 17,941 |  |  |  |
Options exercised (in shares) |  | 707 |  |  |  |  |
Stock compensation expense | 3,577 |  | 3,577 |  |  |  |
Tax benefit of options exercised | (2,430) |  | (2,430) |  |  |  |
Cash dividends declared on common stock, $0.50 per share, for the year ended December 31, 2011 and $0.40 per share, December 31, 2010, and December 31, 2009 | (19,838) |  |  | (19,838) |  |  |
Common stock issued at $30.91, $26.42, and $27.76 per share for the year ended December 31, 2011, December 31, 2010, and December 31, 2009, respectively | 301 |  | 301 |  |  |  |
Common stock issued (in shares) |  | 12 |  |  |  |  |
Balance at Dec. 31, 2010 | 787,793 | 500 | 165,425 | 607,241 | 14,627 |  |
Balance (in shares) at Dec. 31, 2010 |  | 50,096 |  |  |  |  |
Comprehensive income: |  |  |  |  |  |  |
Net income | 50,900 |  |  | 50,900 |  |  | 50,900
Other comprehensive income: |  |  |  |  |  |  |
Translation adjustment | (7,844) |  |  |  | (7,844) |  | (7,844)
Comprehensive income | 43,056 |  |  |  |  |  | 43,056
Options exercised | 214 |  | 214 |  |  |  |
Options exercised (in shares) | 8 | 8 |  |  |  |  |
Stock compensation expense | 6,194 |  | 6,194 |  |  |  |
Tax benefit of options exercised | (1,554) |  | (1,554) |  |  |  |
Repurchase of common stock | (53,208) |  |  |  |  | (53,208) |
Repurchase of common stock (in shares) |  | (1,948) |  |  |  |  |
Retirement of common stock |  | (19) |  | (53,189) |  | 53,208 |
Cash dividends declared on common stock, $0.50 per share, for the year ended December 31, 2011 and $0.40 per share, December 31, 2010, and December 31, 2009 | (24,336) |  |  | (24,336) |  |  |
Common stock issued at $30.91, $26.42, and $27.76 per share for the year ended December 31, 2011, December 31, 2010, and December 31, 2009, respectively | 204 |  | 204 |  |  |  |
Common stock issued (in shares) |  | 7 |  |  |  |  |
Balance at Dec. 31, 2011 | $ 758,363 | $ 481 | $ 170,483 | $ 580,616 | $ 6,783 |  |
Balance (in shares) at Dec. 31, 2011 |  | 48,163 |  |  |  |  |

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