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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 | ||
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- Details
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| X | ||||||||||
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- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Weighted average expected volatility rate of share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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