Inventories (Details) (USD $)	3 Months Ended
	Oct. 01, 2011	Dec. 25, 2010
Inventories [Abstract]
Raw materials and supplies	$ 2,998,000	$ 47,737,000
Work-in-process	56,793,000	34,784,000
Finished goods	166,863,000	131,921,000
Valuation reserves	(11,786,000)	(4,550,000)
Inventories	214,868,000	209,892,000
LIFO reserve	118,200,000	105,600,000
Effects of liquidating LIFO layers due to lack of availability of operational reasons	18,700,000
Lower-of-cost-or-market reserve	$ 6,800,000
Lower-of-cost-or market reserve per diluted share after tax	$ 0.12