Revenue Recognition - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019	Dec. 28, 2019
Sales to domestic distributors as a percentage of total sales	95.00%	95.00%	95.00%	95.00%
Sales to foreign distributors as a percentage of total sales	4.00%	4.00%	4.00%	4.00%
Sales to retail locations as a percentage of total sales	1.00%	1.00%	1.00%	1.00%
Deferred revenue related to product shipped	$ 11.5		$ 11.5		$ 7.0
Reduction in federal excise taxes	4.0	$ 2.8	9.8	$ 6.6
Reimbursements for discounts to distributors	19.0	14.8	47.6	34.5
Accrued federal excise taxes, current	8.6		8.6
Distributors [Member]
Marketing and Advertising Expense	7.5	7.8	16.9	17.8
Reductions to net revenue	$ 6.9	$ 6.2	$ 15.9	$ 13.0