Estimated Useful Lives (Detail)	12 Months Ended
	Dec. 31, 2011 Year
Kegs
Property, Plant and Equipment [Line Items]
Estimated useful life, average	5
Office equipment and furniture
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum	3
Estimated useful life, maximum	5
Machinery and plant equipment
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum	3
Estimated useful life, maximum	20
Estimated useful life	3 to 20 years, or the term of the production agreement, whichever is the shorter
Leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated useful life	Lesser of the remaining term of the lease or estimated life of the asset
Building and building improvements
Property, Plant and Equipment [Line Items]
Estimated useful life, minimum	15
Estimated useful life, maximum	20
Estimated useful life	15 to 20 years, or the remaining useful life of the building, whichever is shorter