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Stock-Based Incentive Compensation Plans (Details) (Weighted-average Valuation Assumptions)
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3 Months Ended | 6 Months Ended | ||
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Jun. 29, 2013
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Jun. 30, 2012
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Jun. 29, 2013
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Jun. 30, 2012
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Expected volatility | 57.18% | 53.58% | 59.08% | 52.16% |
| Risk-free interest rate | 0.58% | 0.49% | 0.60% | 0.54% |
| Expected dividends | 0.00% | 0.00% | 0.00% | 0.00% |
| Expected life (in years) | 3 years 10 months 0 days | 3 years 9 months 15 days | 3 years 10 months 0 days | 3 years 9 months 15 days |
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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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- 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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- Details
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