Customer Allowances and Discounts - Allowances and Discounts Trade Accounts Receivable (Detail) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2011
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	$ 94,439	$ 99,530
Allowance for Seasonal Sales Returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	26,613	24,574	34,285	34,058
Allowance for Outdated Products [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	9,692	11,156
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	2,488	3,419	4,480	5,374
Allowance for Marketing Funds [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	28,277	28,610
Allowance for Rebates [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	$ 27,369	$ 31,771