Increase for accrued, but unpaid interest on the debt instrument for the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
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Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph e
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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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Reflects the difference between the fair value of payments made to legally extinguish a debt and its carrying value at that time. This item excludes the write-off of amounts previously capitalized as debt issuance costs.

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The excess of the (1) fair value of consideration transferred to the holders of a security in excess of (2) the carrying amount of the security reported on the registrant's balance sheet, which will be deducted from net earnings to derive net earnings available to common shareholders. This amount is generally an adjustment considered in the computation of earnings per share.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Debt Senior Subordinated Notes - Loss on Debt Extinguishment (Details) - USD ($) $ in Thousands		3 Months Ended
	Oct. 15, 2015	Oct. 29, 2016	Oct. 24, 2015	Jul. 30, 2016
Debt Instrument [Line Items]
Loss on debt extinguishment		$ 0	$ (16,260)
Write-off of deferred financing fees and premium on long-term debt		$ 0	2,017
7.125% Senior Subordinated Notes Due 2021
Debt Instrument [Line Items]
Debt, interest rate (in percent)		7.125%		7.125%
Repayments of Debt			296,600
Debt Instrument, Increase, Accrued Interest	$ 4,900
Redemption Premium	$ 14,200
Debt Instrument, Redemption Price, Percentage	103.563%
Loss on debt extinguishment			16,300
Gains (Losses) on Extinguishment of Debt, before Write off of Deferred Debt Issuance Cost			6,500
Write-off of deferred financing fees and premium on long-term debt			$ 4,900