Debt Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Jan. 22, 2016	Apr. 24, 2015
Debt Instrument [Line Items]
Total borrowings	$ 496,043	$ 451,085
Less current portion	(417)	(409)
Long-term debt	495,626	450,676
Credit Agreement borrowings
Debt Instrument [Line Items]
Total borrowings	492,850	447,599
R&D Loan
Debt Instrument [Line Items]
Total borrowings	2,323	2,631
Interest-free loan
Debt Instrument [Line Items]
Total borrowings	$ 870	$ 855

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-Subparagraph (SX 210.9-03.16)
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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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+ References

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