Income Taxes - Additional Information (Detail) - USD ($) |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 29, 2018 |
Sep. 30, 2017 |
Sep. 29, 2018 |
Sep. 30, 2017 |
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| Valuation Allowance [Line Items] | ||||
| SEC Schedule, 12-09, Valuation Allowances and Reserves, Period Increase (Decrease) | $ 7,843 | |||
| Effective income tax rates | 12.80% | 28.90% | (6.70%) | 41.20% |
| Income tax expense (benefit) | $ (1,565,000) | $ (538,000) | $ 2,182,000 | $ (4,759,000) |
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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of increase (decrease) in valuation and qualifying accounts and reserves. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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