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Net Income (Loss) Per Share (Tables) | 12 Months Ended
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Dec. 31, 2013
Earnings Per Share [Abstract] |
Numerators and Denominators of Basic and Diluted Net Income (Loss) Per Share Computations | The following table presents the calculation of basic and diluted net income per share (in thousands, except per share amounts):
| December 31,
| 2013 |  | 2012 |  | 2011
Numerator: |  |  |  |  |
Income (loss) from continuing operations | $ | 21,589 |  |  | $ | (16,189 | ) |  | $ | 2,018 |
Income (loss) from discontinued operations | 15,438 |  |  | 5,252 |  |  | 6,761 |
Net income (loss) | $ | 37,027 |  |  | $ | (10,937 | ) |  | $ | 8,779 |
Denominator: |  |  |  |  |
Weighted average shares outstanding |  |  |  |  |
Basic | 106,529 |  |  | 116,457 |  |  | 115,175 |
Effect of dilutive securities from stock options, restricted stock units and ESPP | 1,279 |  |  | — |  |  | 1,252 |
Diluted | 107,808 |  |  | 116,457 |  |  | 116,427 |
Basic net income (loss) per share from: |  |  |  |  |
Continuing operations | $ | 0.20 |  |  | $ | (0.14 | ) |  | $ | 0.02 |
Discontinued operations | $ | 0.14 |  |  | $ | 0.05 |  |  | $ | 0.06 |
Net income (loss) | $ | 0.35 |  |  | $ | (0.09 | ) |  | $ | 0.08 |
Diluted net income (loss) per share from: |  |  |  |  |
Continuing operations | $ | 0.20 |  |  | $ | (0.14 | ) |  | $ | 0.02 |
Discontinued operations | $ | 0.14 |  |  | $ | 0.05 |  |  | $ | 0.06 |
Net income (loss) | $ | 0.34 |  |  | $ | (0.09 | ) |  | $ | 0.08 |

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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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