Significant Accounting Policies (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Accounting Policies [Abstract]
Bank overdrafts	$ 0	$ 0	$ 1,100,000.0
Allowance for doubtful accounts	25,000	25,000	25,000
Finite-Lived Intangible Assets [Line Items]
Refundable deposits on kegs	4,500,000	4,500,000	6,300,000
Keg equipment, net of accumulated depreciation	10,000,000	10,000,000	10,800,000
Advertising expense		$ 14,800,000	$ 14,600,000	$ 16,200,000
Decrease to deferred tax liability recognized as reduction to income tax provision	$ 6,900,000
Buildings | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives		30 years
Buildings | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives		50 years
Brewery equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives		10 years
Brewery equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives		25 years
Furniture, fixtures and other equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated useful lives		2 years
Furniture, fixtures and other equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated useful lives		10 years
Vehicles
Property, Plant and Equipment [Line Items]
Estimated useful lives		5 years
Distribution rights
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives		15 years
Noncompete agreements
Finite-Lived Intangible Assets [Line Items]
Estimated useful lives		5 years