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v3.20.2

Related Party - Additional Information (Detail) - USD ($) $ in Thousands |  |  | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Dec. 15, 2019 | Oct. 18, 2015 | Jun. 27, 2020 | Jun. 29, 2019 | Jun. 27, 2020 | Jun. 29, 2019 | Dec. 28, 2019
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Initial agreement term |  | 5 years |  |  |  |  |
Ms. Winfrey |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Fully vested option to purchase shares of common stock | 3,276 |  |  |  |  |  |
Dividend yield |  |  |  |  | 0.00% |  |
Volatility rate |  |  |  |  | 63.68% |  |
Risk-fee interest rate |  |  |  |  | 0.41% |  |
Accounts payable to related parties |  |  | $ 268 |  | $ 268 |  | $ 72
Number of shares purchased from related party |  |  |  |  | 604,000 |  |
Stock options exercised |  |  |  |  | 297,000 |  |
Ms. Winfrey and her related entities |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Related Party Transaction, service provided by related party |  |  | 823 | $ 720 | $ 1,761 | $ 2,003 |
Related Party Transaction, actual costs reimbursed |  |  | 141 |  | $ 1,650 |  |
Selling, General and Administrative Expenses | Ms. Winfrey |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |
Compensation expense |  |  | $ 32,686 |  |  |  |

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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(iii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2)(ii) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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