Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 26, 2020
Kegs
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	5 years
Computer Software and Equipment | Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	2 years
Computer Software and Equipment | Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	5 years
Office Equipment and Furniture | Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	3 years
Office Equipment and Furniture | Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	7 years
Machinery and Plant Equipment
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	3 to 20 years, or the term of the production agreement, whichever is shorter
Machinery and Plant Equipment | Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	3 years
Machinery and Plant Equipment | Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	20 years
Leasehold Improvements
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	Lesser of the remaining term of the lease or estimated useful life of the asset
Building and Building Improvements
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	12 to 20 years, or the remaining useful life of the building, whichever is shorter
Building and Building Improvements | Minimum
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	12 years
Building and Building Improvements | Maximum
Organization And Summary Of Significant Accounting Policies [Line Items]
Estimated useful life	20 years