The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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

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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.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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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

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.

+ 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)(i)
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-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
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-Subparagraph (SAB Topic 14.D.2)
-URI http://asc.fasb.org/extlink&oid=122041274&loc=d3e301413-122809

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Share-Based Compensation - (Schedule of Grant Date Fair Value and Related Assumptions of PSUs) (Details) - Employee share awards - $ / shares	12 Months Ended
	Dec. 29, 2021	Dec. 30, 2020	Dec. 25, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant date fair value per unit (in dollars per share)	$ 21.83	$ 10.47	$ 19.02
2021 Employee Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	0.18%
Expected term (in years)	3 years
Expected volatility	64.90%
Expected dividend yield	0.00%
Grant date fair value per unit (in dollars per share)	$ 24.74
2020 Employee Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate		0.16%
Expected term (in years)		1 year 3 months
Expected volatility		59.50%
Expected dividend yield		0.00%
Grant date fair value per unit (in dollars per share)		$ 8.24
2019 Employee Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate			2.54%
Expected term (in years)			3 years
Expected volatility			27.40%
Expected dividend yield			0.00%
Grant date fair value per unit (in dollars per share)			$ 20.47