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Description of Operations and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2016
Accounting Policies [Abstract] |
Schedule of Reconciliation of Basic and Diluted Net Income (Loss) per Share Calculation | The following is a reconciliation of the basic and diluted net income (loss) per share calculation for the periods presented (in thousands, except per share data):
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2016 |  |  | 2015 |  |  | 2016 |  |  | 2015 |
Net income (loss) |  | $ | 24,316 |  |  | $ | 57,055 |  |  | $ | (3,524 | ) |  | $ | 10,688 |
Weighted average shares used to compute net income per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 62,582 |  |  |  | 59,798 |  |  |  | 62,383 |  |  |  | 59,499 |
Dilutive effect of potential common shares |  |  | 6,440 |  |  |  | 8,954 |  |  |  | - |  |  |  | 9,855 |
Diluted |  |  | 69,022 |  |  |  | 68,752 |  |  |  | 62,383 |  |  |  | 69,354 |
Net income (loss) per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.39 |  |  | $ | 0.95 |  |  | $ | (0.06 | ) |  | $ | 0.18 |
Diluted |  | $ | 0.35 |  |  | $ | 0.83 |  |  | $ | (0.06 | ) |  | $ | 0.15 |

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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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