Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended			15 Months Ended
	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016	Dec. 29, 2018	Dec. 26, 2015
Income Tax Disclosure [Abstract]
U.S. corporate income tax rate	21.00%	35.00%	35.00%
Percentage of expense qualified property placed in service				100.00%
Percentage of dividends received deduction on qualifying dividends paid by foreign subsidiaries				100.00%
First significant change in U.S. tax law, period	30 years
Provisional tax expense	$ 0
Provisional tax expense, net deferred tax assets		$ 4,400,000
Tax on deferred foreign earnings, liquid assets, percentage	15.50%
Tax on deferred foreign earnings, illiquid assets, percentage	8.00%
Defined increments minimum payment period	8 years
Transition tax expense on accumulated earnings and profits of non-U.S. subsidiaries	$ 0
Accumulated earnings and profits of non-U.S. subsidiaries	0			$ 0
Net unrecognized tax benefits	2,390,000	$ 2,301,000	$ 3,567,000	2,390,000	$ 1,855,000
Unrecognized tax benefits which would impact effective tax rate if recognized	2,100,000			2,100,000
Accrued interest and penalties related to uncertain tax positions	$ 600,000			$ 600,000