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Weighted Average Shares | 12 Months Ended
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Dec. 31, 2012
Weighted Average Shares | NOTE 17: Weighted Average Shares Weighted-average shares were calculated as follows (in thousands):
|  | Year Ended December 31, |
|  | 2012 |  |  | 2011 |  |  | 2010 |
Basic weighted-average common shares outstanding |  |  | 42,833 |  |  |  | 41,859 |  |  |  | 39,924 |
Effect of dilutive stock options |  |  | 807 |  |  |  | 903 |  |  |  | 373 |
Diluted weighted-average common and common-equivalent shares outstanding |  |  | 43,640 |  |  |  | 42,762 |  |  |  | 40,297 |
Stock options to purchase 895,455, 1,001,500, and 1,640,327 shares of common stock, on a weighted-average basis, were outstanding in 2012, 2011, and 2010, respectively, but were not included in the calculation of dilutive net income per share because they were 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=7655603&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=16381557&loc=d3e4984-109258 Reference 3: 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 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=7655603&loc=d3e1278-109256 Reference 5: 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FASB -Name Statement of Financial Accounting Standard (FAS) -Number 128 -Paragraph 40 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 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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