Customer Allowances and Discounts (Details) (USD $)	Nov. 25, 2011	Feb. 28, 2011	Nov. 26, 2010
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	$ 122,639,000	$ 98,247,000	$ 115,325,000
Customer Allowances And Discounts (Textuals) [Abstract]
Trade allowances and discounts settled in cash	13,300,000	11,900,000	12,800,000
Allowance for Seasonal Sales Returns [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	47,496,000	34,058,000	47,252,000
Allowance for outdated products [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	9,937,000	8,264,000	10,349,000
Allowance for doubtful accounts [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	7,031,000	5,374,000	4,379,000
Allowance for cooperative advertising and marketing funds [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	29,710,000	25,631,000	26,425,000
Allowance for rebates [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	$ 28,465,000	$ 24,920,000	$ 26,920,000