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Stock-Based Compensation (Performance-Contingent Return on Invested Capital Shares) - Additional Information (Detail) | 6 Months Ended
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Jul. 16, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period | 1 year
Minimum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Return on investment target over the two fiscal years immediately preceding the vesting date | 1.75%
Percentage of shares that can be earned | 0.00%
Maximum |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Return on investment target over the two fiscal years immediately preceding the vesting date | 4.75%
Percentage of shares that can be earned | 125.00%
Weighted Average Cost of Capital | Range One |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of payout, ROIC above WACC | 50.00%
Weighted Average Cost of Capital | Range Two |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of payout, ROIC above WACC | 100.00%
Weighted Average Cost of Capital | Range Three |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of payout, ROIC above WACC | 125.00%
Return On Invested Capital |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of payout | 0.00%
Return On Invested Capital | Range One |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of payout, ROIC above WACC | 1.75%
Return On Invested Capital | Range Two |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of payout, ROIC above WACC | 3.75%
Return On Invested Capital | Range Three |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of payout, ROIC above WACC | 4.75%
Grant Date First January Twenty Fifteen |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of shares being expensed | 110.00%
Grant Date Fourth January Twenty Sixteen |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of shares being expensed | 100.00%
Performance Contingent Return On Invested Capital Shares | Performance contingent Awards 2012 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period | 18 months
Performance Contingent Return On Invested Capital Shares | Performance contingent Awards 2013, 2014,2015 and 2016 |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Vesting period | 2 years
Performance Contingent Return On Invested Capital Shares | 2014 awards |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of actual ROI attainment | 96.00%
Performance Contingent Return On Invested Capital Shares | 2013 Awards |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Percentage of actual ROI attainment | 125.00%

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