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Stock-Based Compensation - Summary of Grants of Performance Based Restricted Stock Units Associated with NEOs and Key Employees (Detail) - Performance Based Restricted Stock Units [Member] - $ / shares | Jul. 13, 2017 | Jul. 14, 2016 | Jul. 15, 2015
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NEOs [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted Stock Units Awarded | [1],[2] | 78,195 |  |
Price Per Share | [2],[3] | $ 31.85 |  |
Vesting Period | [2] | 3 years |  |
Employee [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted Stock Units Awarded | [1],[4] | 44,000 |  |
Price Per Share | [4],[5] | $ 32.50 |  |
Vesting Period | [4] | 3 years |  |
NEOs and Key Employees [Member] |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Restricted Stock Units Awarded | [1],[2],[4] |  | 107,880 | 107,554
Price Per Share | [2],[4],[5] |  | $ 28.00 | $ 32.23
Vesting Period | [2],[4] |  | 3 years | 3 years
[1] | Amounts represent the maximum number of common stock shares that could be earned if certain performance targets are met as defined in the related restricted stock unit agreements.
[2] | Performance-based restricted stock units awarded to NEOs.
[3] | Price per share represents the fair market value per share ($0.98 per $1 or a reduction of $0.65 to the closing price of the our common stock) determined using the Monte Carlo simulation model for the market-based total shareholder return component and the closing price of our common stock ($32.50) for the performance-based components of the performance-based restricted stock units granted to our NEOs on July 13, 2017.
[4] | Performance-based restricted stock units awarded to key employees.
[5] | Price per share represents the closing price of our common stock on the date of grant.

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition 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. + References No definition available. + Details
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