Stock-Based Compensation - Stock Incentive Plans (Details) - 2009 Stock Incentive Plan	12 Months Ended
Dec. 28, 2019 shares
Stock-Based Compensation
Number of shares deducted for each share granted	1
Low end of range
Stock-Based Compensation
Award vesting period	3 years
High end of range
Stock-Based Compensation
Award vesting period	4 years
Stock options
Stock-Based Compensation
Minimum exercise price as percentage of fair market value of shares on the date of grant	100.00%

Represents the number of shares to be deducted from shares available for issuance for each share granted under the equity-based compensation plan.

No definition available.

+ Details

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

+ 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 (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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.

+ References

No definition available.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

+ Details

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