Stockholders' Equity and Share-Based Compensation - Summary of Assumptions Used for Fair Value of Option Grant (Details) - Option Grant |
12 Months Ended | |
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Dec. 28, 2019 |
Dec. 29, 2018 |
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Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
Expected volatility | 58.00% | |
Minimum | ||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
Expected life | 5 years 7 months 24 days | 5 years 7 months 13 days |
Risk-free interest rate | 1.00% | 2.00% |
Expected volatility | 54.00% | |
Maximum | ||
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||
Expected life | 5 years 8 months 27 days | 5 years 8 months 23 days |
Risk-free interest rate | 3.00% | 3.00% |
Expected volatility | 58.00% |
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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://fasb.org/us-gaap/role/ref/legacyRef
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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. No definition available.
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- Definition Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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