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Net Income Per Share (Tables) | 9 Months Ended
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Sep. 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 September 30, |  | Nine Months Ended September 30,
| 2014 |  | 2013 |  | 2014 |  | 2013
Basic: |  |  |  |  |  |  |  |  |
Net income | $ | 7,300 |  |  | $ | 7,755 |  |  | $ | 21,282 |  |  | $ | 17,156 |
Weighted average shares outstanding — basic | 35,994 |  |  | 35,133 |  |  | 35,634 |  |  | 34,499 |
Net income per share — basic | $ | 0.20 |  |  | $ | 0.22 |  |  | $ | 0.60 |  |  | $ | 0.50 |
Diluted: |  |  |  |  |  |  |  |  |
Net income | $ | 7,300 |  |  | $ | 7,755 |  |  | $ | 21,282 |  |  | $ | 17,156 |
Weighted average shares outstanding — basic | 35,994 |  |  | 35,133 |  |  | 35,634 |  |  | 34,499 |
Add: Dilutive effect of employee stock plans | 838 |  |  | 1,057 |  |  | 983 |  |  | 967 |
Weighted average shares outstanding — diluted | 36,832 |  |  | 36,190 |  |  | $ | 36,617 |  |  | 35,466 |
Net income per share — diluted | $ | 0.20 |  |  | $ | 0.21 |  |  | $ | 0.58 |  |  | $ | 0.48 |

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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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