Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

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- Definition

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

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 718
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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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- 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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Equity Agreements and Incentive Equity Plans - Stock Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 24, 2021	Jun. 25, 2021	Mar. 26, 2021	Sep. 25, 2020	Jun. 26, 2020	Mar. 27, 2020	Sep. 24, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	$ 14,391	$ 1,178	$ 1,060	$ 1,025	$ 1,185	$ 1,362	$ 16,629
Unrecognized Compensation Expense	39,032						$ 39,032
Weighted-Average Remaining Contractual Term							2 years 5 months 8 days
2017 Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	367						$ 2,605
Unrecognized Compensation Expense	0						$ 0
Weighted-Average Remaining Contractual Term							0 years
2021 Incentive Plan \| Restricted stock awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	735						$ 735
Unrecognized Compensation Expense	10,246						$ 10,246
Weighted-Average Remaining Contractual Term							2 years 2 months 12 days
2021 Incentive Plan \| Time-based Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	12,278						$ 12,278
Unrecognized Compensation Expense	16,329						$ 16,329
Weighted-Average Remaining Contractual Term							2 years 8 months 4 days
2021 Incentive Plan \| Market-based Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	418						$ 418
Unrecognized Compensation Expense	6,118						$ 6,118
Weighted-Average Remaining Contractual Term							2 years 4 months 9 days
2021 Incentive Plan \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation Expense	593						$ 593
Unrecognized Compensation Expense	$ 6,339						$ 6,339
Weighted-Average Remaining Contractual Term							2 years 4 months 17 days