Commitments and Contingencies - Additional Information (Detail) (USD $)	1 Months Ended	9 Months Ended		6 Months Ended	9 Months Ended	6 Months Ended
	Jan. 31, 2011	Sep. 29, 2012	Sep. 29, 2012 Current Liabilities City Of Cincinnati	Jun. 30, 2012 Current Liabilities City Of Cincinnati Second Agreement	Sep. 29, 2012 Other Assets City Of Cincinnati	Jun. 30, 2012 Other Assets City Of Cincinnati Second Agreement	Jun. 30, 2012 Property Plant and Equipment City Of Cincinnati Second Agreement	Sep. 29, 2012 Hops	Sep. 29, 2012 Barley and Malt	Sep. 29, 2012 Glass Bottles	Oct. 08, 2012 Glass Bottles Additional Production Estimates Covering 2013 Purchases	Sep. 29, 2012 Advertising Contracts	Sep. 29, 2012 Various Other Non-Cancelable Commitments
Commitments and Contingencies Disclosure [Line Items]
Purchase commitments								$ 29,900,000	$ 15,000,000	$ 658,000	$ 50,600,000	$ 20,400,000	$ 20,100,000
Damages and expenses to be paid by High Falls Brewery Company, LLC	1,300,000
Environmental remediation cost		$ 1,800,000	$ 1,100,000	$ 663,000	$ 2,600,000	$ 663,000	$ 263,000