SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Apr. 25, 2015	Apr. 26, 2014	Apr. 27, 2013
Allowance for doubtful accounts, deducted from accounts receivable
Movement in Valuation Allowances and Reserves
Balance at Beginning of Year	$ 12,368	$ 21,607	$ 22,254
Charged to Costs and Expenses	(2,206)	(2,926)	495
Deductions	(5,540)	(6,313)	(1,142)
Balance at End of Year	4,622	12,368	21,607
Allowance for deferred tax assets
Movement in Valuation Allowances and Reserves
Balance at Beginning of Year	4,700	6,619	8,258
Charged to Costs and Expenses		(135)	131
Charged to Other Accounts	39		(1,572)
Deductions	(417)	(1,784)	(198)
Balance at End of Year	$ 4,322	$ 4,700	$ 6,619