This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

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+ Details

Basis of Presentation (Details) (USD $) In Millions, unless otherwise specified		6 Months Ended
	Aug. 26, 2011	Aug. 26, 2011 Schurman [Member]	Aug. 26, 2011 Schurman [Member] Investment in Equity [Member]	Aug. 26, 2011 Schurman [Member] Liquidity Guaranty [Member]	Aug. 26, 2011 Schurman [Member] Collectability of Receivables [Member]	Aug. 26, 2011 Schurman [Member] Operating Lease Subleased to Schurman [Member]	Feb. 28, 2011 Schurman [Member] Operating Lease Subleased to Schurman [Member]	Aug. 27, 2010 Schurman [Member] Operating Lease Subleased to Schurman [Member]	Aug. 26, 2011 Schurman [Member] Subordinated credit facility [Member]
Variable Interest Entity, Reporting Entity Involvement, Maximum Loss Exposure [Abstract]
Maximum exposure to loss, Amount			$ 1.9	$ 12.0	$ 12.6	$ 28.5	$ 36.0	$ 43.3	$ 10.0
Equity Interest of Variable interest Entity		15.00%
Limited bridge guarantee of Schurman's indebtedness		12
Loans Receivable From VIE		0
Initial term of Subordinated Credit Facility		19 months
End period of the Liquidity Guaranty		January 2014
Basis of Presentation (Textuals) [Abstract]
Total investment	$ 12.5