Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Dec. 29, 2018	Dec. 30, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 28, 2019
Income Tax Contingency [Line Items]
Income tax expense	$ 4,437	$ 15,051	$ 13,699	$ 22,089
Effective tax rate	29.70%	73.60%	(25.50%)	55.00%
Statutory federal income tax rate	21.00%	35.00%	21.00%	35.00%
Change in uncertain tax positions	$ (300)		$ (700)
Scenario Forecast [Member]
Income Tax Contingency [Line Items]
Increase in uncertain tax benefits due to additional accrual of interest and penalties					$ 100

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

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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