Additional renewal period of liquidity commitments.

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- Definition

Debt.

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- Definition

Maximum available financing of receivables purchase agreement.

+ Details

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- Definition

Maximum available financing of receivables purchase agreement after amendment.

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- Definition

Receivables purchase agreement amount outstanding.

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- Definition

Secured credit agreement amount outstanding.

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- Definition

Carrying value as of the balance sheet date of the sum of short-term debt and current maturities of long-term debt and capital lease obligations, which are due within one year (or one business cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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-Section 02
-Paragraph 19
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- Definition

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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- Definition

Interest rate stated in the contractual debt agreement.

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-Publisher SEC
-Name Regulation S-X (SX)
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-Section 02
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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
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- Definition

Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

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Debt (Details) (USD $)	Aug. 26, 2011	Feb. 28, 2011	Aug. 27, 2010	Aug. 26, 2011 Publicly Traded Debt [Member]	Feb. 28, 2011 Publicly Traded Debt [Member]	Aug. 27, 2010 Publicly Traded Debt [Member]	Aug. 26, 2011 7.375% senior notes, due 2016 [Member]	Feb. 28, 2011 7.375% senior notes, due 2016 [Member]	Aug. 27, 2010 7.375% senior notes, due 2016 [Member]	Aug. 26, 2011 7.375% notes, due 2016 [Member]	Feb. 28, 2011 7.375% notes, due 2016 [Member]	Aug. 27, 2010 7.375% notes, due 2016 [Member]	Aug. 26, 2011 6.10% senior notes, due 2028 [Member]	Feb. 28, 2011 6.10% senior notes, due 2028 [Member]	Aug. 27, 2010 6.10% senior notes, due 2028 [Member]	Sep. 21, 2011 Amended and Restated Receivables Purchase Agreement [Member]	Aug. 26, 2011 Amended and Restated Receivables Purchase Agreement [Member]	Aug. 26, 2011 Secured Credit Agreement [Member]
Long-term debt
Long-term debt	$ 233,970,000	$ 232,688,000	$ 231,525,000	$ 234,000,000	$ 232,700,000	$ 231,500,000	$ 213,593,000	$ 213,077,000	$ 212,609,000	$ 20,196,000	$ 19,430,000	$ 18,735,000	$ 181,000	$ 181,000	$ 181,000
Secured credit agreement amended and restated																		350,000,000
Maximum available financing of receivables purchase agreement																	80,000,000
Maximum available under receivables purchase agreement after amendment																70,000,000
Quoted market prices of Corporation's publicly and non-publicly traded debt				237,800,000	237,500,000	231,300,000
Quoted market prices of Corporation's publicly traded debt, carrying value	233,970,000	232,688,000	231,525,000	234,000,000	232,700,000	231,500,000	213,593,000	213,077,000	212,609,000	20,196,000	19,430,000	18,735,000	181,000	181,000	181,000
Additional renewal period of liquidity commitments																364 days
Interest rate of debt							7.375%			7.375%			6.10%
Debt (Textuals) [Abstract]
Balances outstanding under the Corporation's credit facility	0	0	0
Balances outstanding under receivables purchase agreement	0	0	0
Letters of credit outstanding	31,800,000
Debt due within one year	0	0	0
Long-term debt net of unamortized discounts	$ 20,900,000	$ 22,200,000	$ 23,300,000