Net Income (Loss) Per Share - Computation of Basic and Diluted Net Loss Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Sep. 29, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Dec. 30, 2017 |
Sep. 30, 2017 |
Jul. 01, 2017 |
Apr. 01, 2017 |
Sep. 29, 2018 |
Sep. 29, 2018 |
Dec. 29, 2018 |
Dec. 30, 2017 |
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| Numerator: | |||||||||||
| (Loss) income from continuing operations | $ (4,079) | $ 919 | $ 26,918 | $ 816 | $ (4,889) | $ 24,574 | |||||
| Dividends on Series A Convertible Preferred Stock | (161) | (189) | |||||||||
| (Loss) income from continuing operations available to common shares | $ (5,050) | $ 24,385 | |||||||||
| Denominator: | |||||||||||
| Weighted-average common shares outstanding (basic) (in shares) | 34,983 | 34,972 | 34,821 | 35,070 | 35,856 | 35,332 | 34,510 | 34,896 | 34,925 | 34,941 | 35,192 |
| Common equivalent shares from common stock options, restricted stock, preferred stock and warrants | 4,442 | ||||||||||
| Weighted-average common shares outstanding (diluted) (in shares) | 34,983 | 34,972 | 38,066 | 35,070 | 39,485 | 39,933 | 39,959 | 34,896 | 34,925 | 34,941 | 39,634 |
| Basic net (loss) income from continuing operations per share | $ (0.01) | $ (0.02) | $ 0.01 | $ (0.12) | $ 0.02 | $ 0.76 | $ 0.02 | $ (0.01) | $ (0.02) | $ (0.14) | $ 0.69 |
| Diluted net (loss) income from continuing operations per share | $ (0.01) | $ (0.02) | $ 0.01 | $ (0.12) | $ 0.02 | $ 0.67 | $ 0.02 | $ (0.01) | $ (0.02) | $ (0.14) | $ 0.62 |
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- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. No definition available.
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- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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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://fasb.org/us-gaap/role/ref/legacyRef
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