Annual report pursuant to Section 13 and 15(d)

Significant Customers and Concentration of Credit Risk (Details)

v3.7.0.1
Significant Customers and Concentration of Credit Risk (Details)
12 Months Ended
Feb. 28, 2017
Feb. 29, 2016
Feb. 28, 2015
Net sales [Member] | Customer concentration risk [Member]      
Concentration Risk [Line Items]      
Concentration risk, Percentage 32.60% 31.70% 33.70%
Net sales [Member] | Customer concentration risk [Member] | Southern Glazer's Wine and Spirits [Member]      
Concentration Risk [Line Items]      
Concentration risk, Percentage 14.10% 13.40% 15.40%
Accounts receivable [Member] | Credit concentration risk [Member] | Southern Glazer's Wine and Spirits [Member]      
Concentration Risk [Line Items]      
Concentration risk, Percentage 32.10% 32.00% 24.40%