Employee Benefits and Deferred Compensation - Schedule of Amounts Recognized in Balance Sheet (Detail) (USD $) In Millions, unless otherwise specified	Apr. 26, 2013	Apr. 27, 2012
Defined Benefit Plan Disclosure [Line Items]
Other long-term liabilities	$ 27.4	$ 22.2
Accumulated other comprehensive income	$ (5.7)	$ (4.4)

This represents the noncurrent liability for underfunded plans recognized in the balance sheet that is associated with the defined benefit pension plans and other postretirement defined benefit plans.

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+ Details