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NET INCOME PER SHARE (Tables) | 12 Months Ended
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Dec. 31, 2019
Net income per share attributable to TTEC stockholders |
Schedule of Diluted Shares Calculation | The following table sets forth the computation of basic and diluted shares for the periods indicated (in thousands):
|  |  | Year Ended December 31, |
|  |  | 2019 |  | 2018 |  | 2017 |
Shares used in basic earnings per share calculation |  |  | 46,373 |  | 46,064 |  | 45,826 |
Effect of dilutive securities: |  |  |  |  |  |  |  |
Stock options |  |  | — |  | 6 |  | 10 |
Restricted stock units |  |  | 349 |  | 314 |  | 536 |
Performance-based restricted stock units |  |  | 36 |  | 1 |  | 10 |
Total effects of dilutive securities |  |  | 385 |  | 321 |  | 556 |
Shares used in dilutive earnings per share calculation |  |  | 46,758 |  | 46,385 |  | 46,382 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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