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Summary of Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2017
Accounting Policies [Abstract] |
Components of basic and diluted weighted-average shares | The following table presents information about basic and diluted weighted-average shares outstanding:
|  | Three Months Ended March 31,
(in thousands) |  | 2017 |  | 2016
Numerator (for basic and diluted earnings per share) |  |  |  |
Net (loss) income |  | $ | (1,939 | ) |  | $ | 4,888 |
Less income allocated to RSUs |  | — |  |  | (53 | )
Numerator for basic and diluted earnings per share |  | $ | (1,939 | ) |  | $ | 4,835 |
Denominator |  |  |  |
Basic weighted-average shares outstanding |  | 82,079 |  |  | 83,965 |
Effect of dilutive securities: |  |  |  |
Stock options held by employees and directors |  | — |  |  | 260 |
Diluted weighted-average shares outstanding |  | 82,079 |  |  | 84,225 |
Anti-dilutive securities (1) |  | 1,397 |  |  | — |
(1) Amount outstanding at balance sheet date, before application of the treasury stock method and not weighted for period outstanding.

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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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