CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Apr. 29, 2012	Apr. 24, 2011	Apr. 25, 2010
CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
Deferred hedge adjustment, income tax provision	$ 789	$ 3,408	$ 1,463
Unrealized gain (loss) on interest rate cap/swap contracts, income tax provision (benefit)	$ 41	$ 19	$ 2,683

Tax effect on reclassification adjustment for accumulated gains and losses from interest rate swap contracts designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration