Customer Allowances and Discounts (Details) (USD $)	Aug. 26, 2011	Feb. 28, 2011	Aug. 27, 2010
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	$ 107,013,000	$ 98,247,000	$ 80,867,000
Customer Allowances And Discounts (Textuals) [Abstract]
Trade allowances and discounts settled in cash	13,100,000	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	25,015,000	34,058,000	21,450,000
Allowance for outdated products [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	13,405,000	8,264,000	10,249,000
Allowance for doubtful accounts [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	7,579,000	5,374,000	3,336,000
Allowance for cooperative advertising and marketing funds [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	31,477,000	25,631,000	25,259,000
Allowance for rebates [Member]
Allowances and discounts on trade accounts receivable
Allowances and discounts on trade accounts receivables	$ 29,537,000	$ 24,920,000	$ 20,573,000