Earnings Per Share - Computation of Basic and Diluted Net Earnings (Loss) Per Share (Detail) - USD ($) shares in Thousands, $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2017 |
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| Numerator: | ||
| Net income | $ 11,353 | $ 13,632 |
| Denominator: | ||
| Denominator for basic earnings per share – weighted average shares (in shares) | 20,835 | 20,738 |
| Effect of dilutive securities: | ||
| Employee stock options (in shares) | 76 | 96 |
| Denominator for diluted earnings per share - weighted average shares (in shares) | 20,911 | 20,834 |
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- Definition Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Denominator. No definition available.
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- Definition Numerator. No definition available.
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