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Earnings Per Share | 6 Months Ended
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Jun. 30, 2012
Earnings (Loss) Per Share [Abstract] |
Earnings (Loss) Per Share | 14. Earnings Per Share The computations of Basic and Diluted Earnings per Share were as follows:
|  | Three Months Ended |  |  | Six Months Ended |
|  | June 30 |  |  | June 30 |
|  | 2012 |  |  | 2011 |  |  | 2012 |  |  | 2011 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net Earnings |  | $ | 13,671 |  |  | $ | 5,855 |  |  | $ | 18,995 |  |  | $ | 11,721 |
Denominator: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic - Weighted Average Shares Outstanding |  |  | 18,594,207 |  |  |  | 18,941,131 |  |  |  | 18,658,182 |  |  |  | 18,952,093 |
Effect of dilutive securities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based compensation plans |  |  | 609,356 |  |  |  | 526,422 |  |  |  | 604,287 |  |  |  | 538,963 |
Diluted - Weighted Average Shares Outstanding |  |  | 19,203,563 |  |  |  | 19,467,553 |  |  |  | 19,262,469 |  |  |  | 19,491,056 |
Basic Earnings per Share |  | $ | 0.74 |  |  | $ | 0.31 |  |  | $ | 1.02 |  |  | $ | 0.62 |
Diluted Earnings per Share |  | $ | 0.71 |  |  | $ | 0.30 |  |  | $ | 0.99 |  |  | $ | 0.60 |
Excluded from the dilutive securities shown above were options to purchase 253,781 and 179,130 shares of Common Stock during the three months ended June 30, 2012 and 2011, respectively. Excluded from the dilutive securities shown above were options to purchase 208,578 and 127,289 shares of Common Stock during the six months ended June 30, 2012 and 2011, respectively. These exclusions are made if the exercise prices of these options are greater than the average market price of our Common Stock for the period, if the number of shares we can repurchase exceeds the weighted shares outstanding in the options, or if we have a net loss, as the effects are anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1252-109256 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=6945512&loc=d3e4984-109258 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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