Property, Plant And Equipment Narrative (Details) (USD $)	12 Months Ended
	Feb. 22, 2013	Feb. 24, 2012	Feb. 25, 2011
Property, Plant and Equipment [Line Items]
Gain (Loss) on Sale of Property Plant Equipment	$ (1,600,000)	$ (4,600,000)	$ 5,700,000
Property, plant and equipment, net	353,200,000	346,900,000
Depreciation	53,600,000	52,700,000	61,200,000
Construction in Progress, Estimated Cost to Complete	22,200,000	12,700,000
Impairment of Long-Lived Assets to be Disposed of		2,800,000	4,000,000
Real Estate Held-for-sale		14,800,000
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	126,600,000	145,500,000
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Interest Costs Capitalized	0	800,000	400,000
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, net	118,100,000	107,700,000
Impairment of Long-Lived Assets to be Disposed of	$ 12,400,000