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NET INCOME PER SHARE (TABLES) | 9 Months Ended
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Sep. 30, 2013
NET INCOME PER SHARE [Abstract] |
Schedule of Diluted Shares Calculation |
|  |  |  | Three Months Ended September 30, |  | Nine Months Ended September 30,
|  |  |  | 2013 |  | 2012 |  | 2013 |  | 2012
Shares used in basic earnings per share calculation | 50,732 |  | 54,093 |  | 51,643 |  | 55,233
| Effect of dilutive securities: |  |  |  |  |  |  |
|  | Stock options | 425 |  | 377 |  | 412 |  | 378
|  | Restricted stock units | 521 |  | 435 |  | 444 |  | 380
|  | Performance-based restricted stock units | - |  | - |  | - |  | -
|  |  | Total effects of dilutive securities | 946 |  | 812 |  | 856 |  | 758
Shares used in dilutive earnings per share calculation | 51,678 |  | 54,905 |  | 52,499 |  | 55,991

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- Definition Tabular disclosure of the reconciliation of basic net earnings per share (or unit) to diluted earnings per share (or unit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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