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Net Income Per Share (Tables) | 6 Months Ended
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Jun. 30, 2014
Earnings Per Share [Abstract] |
Schedule of Earnings Per Share, Basic and Diluted | The calculation of basic and diluted net income per share is as follows (in thousands, except per share amounts):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2014 |  | 2013 |  | 2014 |  | 2013
Basic: |  |  |  |  |  |  |  |  |
Net income | $ | 7,789 |  |  | $ | 6,016 |  |  | $ | 13,983 |  |  | $ | 9,401 |
Weighted average shares outstanding — basic | 35,661 |  |  | 34,450 |  |  | 35,451 |  |  | 34,177 |
Net income per share — basic | $ | 0.22 |  |  | $ | 0.17 |  |  | $ | 0.39 |  |  | $ | 0.28 |
Diluted: |  |  |  |  |  |  |  |  |
Net income | $ | 7,789 |  |  | $ | 6,016 |  |  | $ | 13,983 |  |  | $ | 9,401 |
Weighted average shares outstanding — basic | 35,661 |  |  | 34,450 |  |  | 35,451 |  |  | 34,177 |
Add: Dilutive effect of employee stock plans | 957 |  |  | 924 |  |  | 1,027 |  |  | 922 |
Weighted average shares outstanding — diluted | 36,618 |  |  | 35,374 |  |  | $ | 36,478 |  |  | 35,099 |
Net income per share — diluted | $ | 0.21 |  |  | $ | 0.17 |  |  | $ | 0.38 |  |  | $ | 0.27 |

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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://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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