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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands, except Share data, unless otherwise specified | Total | Accumulated Other Comprehensive Income (Loss) [Member] | Common Stock [Member] | Retained Earnings [Member]
--- | --- | --- | --- | ---
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2008 | $ 194,305 | $ (58) | $ 61,689 | $ 132,674
Common Stock, Shares, Outstanding at Dec. 31, 2008 |  |  | 35,116,000 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net Income | 22,530 |  |  | 22,530
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (27) | (27) |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | 22,503 |  |  |
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation | 987 |  | 987 |
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition | 1,182 |  | 1,182 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |  |  | 385,000 |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 353 |  | 353 |
Stock Issued During Period, Shares, Other |  |  | 64,000 |
Stock Issued During Period, Value, Other | 517 |  | 517 |
Stock Issued During Period, Value, Stock Options Exercised | 1,920 |  | 1,920 |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  |  | 30,000 |
Stock Repurchased and Retired During Period, Value | (2,474) |  | (2,474) |
Stock Repurchased and Retired During Period, Shares |  |  | (313,000) |
Stock Surrendered During Period Value Payroll Tax Liabilities Stock Options Exercised | (254) |  | (254) |
Stock Surrendered During Period Shares Payroll Tax Liabilities Stock Options Exercised |  |  | (29,000) |
Stock Surrendered During Period Value Stock Options Exercised | (230) |  | (230) |
Stock Surrendered During Period Shares Stock Options Exercised | (27,000) |  | (27,000) |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2009 | 218,809 | (85) | 63,690 | 155,204
Common Stock, Shares, Outstanding at Dec. 31, 2009 |  |  | 35,226,000 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net Income | 12,460 |  |  | 12,460
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax | 708 | 708 |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | 237 | 237 |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | 13,405 |  |  |
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation | 399 |  | 399 |
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition | 1,294 |  | 1,294 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period |  |  | 239,000 |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 378 |  | 378 |
Stock Issued During Period, Value, Stock Options Exercised | 1,330 |  | 1,330 |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  |  | 31,000 |
Stock Surrendered During Period Value Stock Options Exercised | 0 |  |  |
Stock Surrendered During Period Shares Stock Options Exercised | 0 |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2010 | 235,615 | 860 | 67,091 | 167,664
Common Stock, Shares, Outstanding at Dec. 31, 2010 |  |  | 35,496,000 |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net Income | 23,044 |  |  | 23,044
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax | (708) | (708) |  |
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax | 180 | 180 |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (182) | (182) |  |
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest | 22,334 |  |  |
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation | 3,122 |  | 3,122 |
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition | 1,644 |  | 1,644 |
Stock Issued During Period, Value, New Issues | 87,700 |  | 87,700 |
Stock Issued During Period, Shares, New Issues | 5,520,000 |  | 5,520,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period | (1,099,000) |  | 1,099,000 |
Stock Issued During Period, Value, Employee Stock Purchase Plan | 430 |  | 430 |
Stock Issued During Period, Value, Stock Options Exercised | 8,449 |  | 8,449 |
Stock Issued During Period, Shares, Employee Stock Purchase Plans |  |  | 31,000 |
Stock Surrendered During Period Value Payroll Tax Liabilities Stock Options Exercised | (953) |  | (953) |
Stock Surrendered During Period Shares Payroll Tax Liabilities Stock Options Exercised |  |  | (60,000) |
Stock Surrendered During Period Value Stock Options Exercised | (1,252) |  | (1,252) |
Stock Surrendered During Period Shares Stock Options Exercised | (78,000) |  | (78,000) |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest at Dec. 31, 2011 | $ 357,089 | $ 150 | $ 166,231 | $ 190,708
Common Stock, Shares, Outstanding at Dec. 31, 2011 |  |  | 42,008,000 |

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