Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 28, 2020	Mar. 30, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 1,450	$ 1,025
Unrecognized tax benefits	5,800		$ 5,700
Expected change in unrecognized tax benefits	4,100
Decrease in unrecognized tax benefits in next twelve months	$ 2,000

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References

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Amount of unrecognized tax benefits.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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