Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 01, 2018	Jul. 02, 2017	Jul. 01, 2018	Jul. 02, 2017	Apr. 01, 2018	Dec. 31, 2017	Oct. 01, 2017
Tax Credit Carryforward [Line Items]
Federal and State Income Tax Expense (Benefit), Continuing Operations	$ (2,251)	$ (3,420)	$ 1,284	$ 6,678
Effective income tax rate	19.50%	35.90%	35.10%	38.50%
Deferred income taxes			$ (3,626)	$ (3,589)
Unrecognized tax benefits					$ 3,900	$ 0
Unrecognized tax benefits that would decrease effective tax rate and provision for income taxes, if recognized					2,700
Expected decrease in unrecognized tax benefits within next twelve months							$ 1,100
Total amount of interest and penalties accrued related to unrecognized tax benefits					$ 1,100	$ 0
Foreign Income Tax Expense (Benefit), Continuing Operations	$ 77	$ 103	475	383
Income tax expense (benefit)	$ (2,174)	$ (3,317)	$ 1,759	$ 7,061