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NET INCOME PER SHARE (TABLES) | 3 Months Ended
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Mar. 31, 2013
NET INCOME PER SHARE [Abstract] |
Schedule of Diluted Shares Calculation |
|  |  |  | Three Months Ended March 31,
|  |  |  | 2013 |  | 2012
Shares used in basic earnings per share calculation |  | 52,347 |  |  | 56,493
| Effect of dilutive securities: |  |  |  |  |
|  | Stock options |  | 391 |  |  | 396
|  | Restricted stock units |  | 479 |  |  | 529
|  | Performance-based restricted stock units |  | - |  |  | -
|  |  | Total effects of dilutive securities |  | 870 |  |  | 925
Shares used in dilutive earnings per share calculation |  | 53,217 |  |  | 57,418

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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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