Customer Allowances and Discounts - Allowances and Discounts Trade Accounts Receivable (Detail) - USD ($) $ in Thousands	Feb. 29, 2016	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2013
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	$ 82,262	$ 92,754
Allowance for Seasonal Sales Returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	21,518	18,895	$ 26,613	$ 24,574
Allowance for Outdated Products [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	8,372	11,074
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	1,628	1,730	$ 2,488	$ 3,419
Allowance for Marketing Funds [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	26,371	26,841
Allowance for Rebates [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	$ 24,373	$ 34,214