Fair Value of Financial Instruments (Tables)

12 Months Ended

May 03, 2015

Fair Value Disclosures [Abstract]

Schedule of Fair Value Assets Measured on a Recurring Basis

The Company's financial instruments measured at fair value on a recurring basis as of May 3, 2015 and April 27, 2014 were as follows:

	May 3, 2015										April 27, 2014
	Carrying		Fair Value								Carrying		Fair Value
(in thousands)	Amount		Level 1		Level 2		Level 3		Total		Amount		Level 1		Level 2		Level 3		Total
Money market funds	$	196	$	196	$	—	$	—	$	196	$	30,169	$	30,169	$	—	$	—	$	30,169
Commercial paper	—		—		—		—		—		89,922		—		89,922		—		89,922
Certificates of deposit	292,748		—		292,748		—		292,748		120,000		—		120,000		—		120,000
Total	$	292,944	$	196	$	292,748	$	—	$	292,944	$	240,091	$	30,169	$	209,922	$	—	$	240,091

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

The Company's financial instruments not measured at fair value on a recurring basis as of May 3, 2015 and April 27, 2014 were as follows:

	May 3, 2015										April 27, 2014
	Carrying		Fair Value								Carrying		Fair Value
(in thousands)	Amount		Level 1		Level 2		Level 3		Total		Amount		Level 1		Level 2		Level 3		Total
2029 Notes	$	—	$	—	$	—	$	—	$	—	$	40,015	$	104,105	$	—	$	—	$	104,105
2033 Notes	221,406		264,364		—		—		264,364		212,253		305,325		—		—		305,307
Total	$	221,406	$	264,364	$	—	$	—	$	264,364	$	252,268	$	409,430	$	—	$	—	$	409,412