Customer Allowances and Discounts - Allowances and Discounts Trade Accounts Receivable (Detail) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2011	Feb. 28, 2010
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	$ 99,530	$ 104,068
Allowance for seasonal sales returns [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	24,574	34,285
Allowance for outdated products [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	11,156	10,976
Allowance for doubtful accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	3,419	4,480	5,374	2,963
Allowance for marketing funds [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	28,610	26,679
Allowance for rebates [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Allowances and discounts on trade accounts receivables	$ 31,771	$ 27,648