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Stock-Based Incentive Compensation Plans (Details) (Weighted-average Valuation Assumptions)
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3 Months Ended | 9 Months Ended | ||
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Sep. 27, 2014
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Sep. 28, 2013
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Sep. 27, 2014
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Sep. 28, 2013
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Stock Options
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| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] | ||||
| Expected volatility | 51.94% | 57.98% | 52.88% | 58.71% |
| Risk-free interest rate | 1.16% | 1.05% | 1.11% | 0.75% |
| Expected dividends | 0.00% | 0.00% | 0.00% | 0.00% |
| Expected life | 3 years 10 months 10 days | 3 years 10 months 0 days | 3 years 10 months 10 days | 3 years 10 months 0 days |
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Performance-based
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| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] | ||||
| Expected volatility | 46.68% | 57.46% | ||
| Risk-free interest rate | 0.24% | 0.20% | ||
| Expected dividends | 0.00% | 0.00% | ||
| Expected life | 1 year 4 months 20 days | 1 year 5 months 10 days | ||