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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2012
Reconciliation Of Earnings Per Share | The following is a reconciliation of our earnings per share (in thousands, except for per share data):
|  | Years Ended, December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Net income for basic and diluted earnings per share |  | $ | 67,953 |  |  | $ | 58,178 |  |  | $ | 43,458 |
Weighted average shares outstanding - basic |  |  | 37,053 |  |  |  | 36,913 |  |  |  | 37,223 |
Dilutive effect of stock options and restricted stock |  |  | 132 |  |  |  | 150 |  |  |  | 162 |
Weighted average shares outstanding - diluted |  |  | 37,185 |  |  |  | 37,063 |  |  |  | 37,385 |
Earnings per share - basic |  | $ | 1.83 |  |  | $ | 1.58 |  |  | $ | 1.17 |
Earnings per share - diluted |  | $ | 1.83 |  |  | $ | 1.57 |  |  | $ | 1.16 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations. + References No definition available. + Details
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