Income Taxes (Changes In Gross Unrecognized Tax Benefits) (Details) (USD $) In Thousands	12 Months Ended
Aug. 27, 2011	Aug. 28, 2010
Income Taxes
Beginning Balance	$ 10,836	$ 8,341
Additions for tax positions relating to current year	2,679	2,861
Additions for tax positions relating to prior years	1,064	1,020
Reductions for tax positions relating to prior years	(663)
Lapse of statute of limitations	(2,523)	(1,386)
Ending Balance	$ 11,393	$ 10,836

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of decreases in unrecognized tax benefits resulting from lapses of the applicable statutes of limitations.

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