Summary of Valuation and Qualifying Accounts (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 26, 2015	Dec. 27, 2014	Dec. 28, 2013
Allowance for Doubtful Accounts
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 144	$ 160	$ 125
Net Provision (Recovery)	165	(16)	35
Amounts Charged Against Reserves	(65)
Balance at End of Period	244	144	160
Discount Accrual
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	3,006	2,602	2,315
Net Provision (Recovery)	33,204	28,448	23,132
Amounts Charged Against Reserves	(33,397)	(28,044)	(22,845)
Balance at End of Period	2,813	3,006	2,602
Inventory Obsolescence Reserve
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	1,328	1,616	1,072
Net Provision (Recovery)	4,045	6,130	4,884
Amounts Charged Against Reserves	(3,848)	(6,418)	(4,340)
Balance at End of Period	1,525	1,328	1,616
Stale Beer Reserve
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	2,422	1,754	1,859
Net Provision (Recovery)	7,780	5,648	3,432
Amounts Charged Against Reserves	(6,948)	(4,980)	(3,537)
Balance at End of Period	$ 3,254	$ 2,422	$ 1,754