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Earnings Per Share (Tables) | 12 Months Ended
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Dec. 31, 2011
Reconciliation of Average Share Amounts used to Compute Both Basic and Diluted Earnings Per Share | The following table reconciles the average share amounts used to compute both basic and diluted earnings per share (in thousands):
|  |  | September 30, |  |  |  | September 30, |  |  |  | September 30, |
|  | Years Ended December 31, |
|  | 2011 |  |  | 2010 |  |  | 2009 |
Weighted average share outstanding: |  |  |  |  |  |  |  |  |  |  |  |
Basic weighted average shares outstanding |  |  | 33,457 |  |  |  | 33,560 |  |  |  | 34,368 |
Add: Dilutive effect of stock options, restricted stock awards and other dilutive securities |  |  | 738 |  |  |  | 310 |  |  |  | 186 |
Diluted weighted average shares outstanding |  |  | 34,195 |  |  |  | 33,870 |  |  |  | 34,554 |

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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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