Share-Based Compensation Arrangement By Share-Based Payment Award, Performance Period

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Estimated Forfeiture Rate

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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-Name Accounting Standards Codification
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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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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.

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No definition available.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Gross number of share options (or share units) granted during the period.

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- Definition

Description of terms of award under share-based payment arrangement.

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Percentage of vesting of award under share-based payment arrangement.

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- Definition

Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Number of options vested.

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No definition available.

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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2021	Dec. 29, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares available for grant	2,900,000
Unrecognized compensation cost	$ 6.1
Period for recognition of compensation cost	2 years 7 months 6 days
Stock options granted (in share)	0	0
Estimated average forfeiture rate (percent)	22.00%
Stock options vested (in shares)	90,590	120,349	203,254
Estimated fair value of stock options vested	$ 1.1	$ 0.8	$ 1.4
General and Administrative Expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 4.3	2.6	2.4
Restricted share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted share units vested (in shares)	315,009
Estimated fair value of restricted share units vested	$ 3.7
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1.5	$ 0.0	$ 0.2
Performance period	3 years
Performance Stock Units \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Eligible to vest range (percent)	0.00%
Performance Stock Units \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Eligible to vest range (percent)	200.00%
Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based awards term	ten years
Share-based awards vesting period	4 years