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Debt Schedule of Debt (Details) - USD ($) $ in Thousands	Jan. 23, 2016	Jul. 25, 2015
Debt Instrument [Line Items]
Debt and capital lease obligations	$ 618,080	$ 525,591
Long-term debt premium on 7.125% senior subordinated notes	0	2,800
Less: current portion	(5,625)	(3,750)
Long-term debt	$ 612,455	$ 521,841
0.75% Convertible Senior Notes Due 2021
Debt Instrument [Line Items]
Debt, interest rate (in percent)	0.75%	0.75%
Debt and capital lease obligations	$ 364,830	$ 0
7.125% Senior Subordinated Notes Due 2021
Debt Instrument [Line Items]
Debt, interest rate (in percent)	7.125%	7.125%
Debt and capital lease obligations	$ 0	$ 277,500
Long-term debt premium on 7.125% senior subordinated notes	0	2,841
Credit Agreement - Revolving facility (matures April 2020)
Debt Instrument [Line Items]
Debt and capital lease obligations	103,250	95,250
Credit Agreement - Term Loan (matures April 2020)
Debt Instrument [Line Items]
Debt and capital lease obligations	$ 150,000	$ 150,000

X

- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
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Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 210
-SubTopic 10
-Section S99
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The amount of debt premium that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
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Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

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-Publisher FASB
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