Significant Customers and Concentration of Credit Risk (Details)	12 Months Ended
	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2011
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member]
Sales and accounts receivable, net, from major customers
Concentration Risk, Percentage	57.80%	61.00%	41.70%
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Constellation Wines and Spirits [Member] | Southern Wine and Spirits [Member]
Sales and accounts receivable, net, from major customers
Concentration Risk, Percentage	30.00%	32.40%	19.50%
Sales Revenue, Goods, Net [Member] | Customer Concentration Risk [Member] | Constellation Wines and Spirits [Member] | Republic National Distributing Company [Member]
Sales and accounts receivable, net, from major customers
Concentration Risk, Percentage	15.60%	17.50%	9.80%
Accounts Receivable [Member] | Credit Concentration Risk [Member] | Constellation Wines and Spirits [Member] | Southern Wine and Spirits [Member]
Sales and accounts receivable, net, from major customers
Concentration Risk, Percentage	34.50%	39.40%	35.70%
Accounts Receivable [Member] | Credit Concentration Risk [Member] | Constellation Wines and Spirits [Member] | Republic National Distributing Company [Member]
Sales and accounts receivable, net, from major customers
Concentration Risk, Percentage	18.70%	17.20%	20.10%