Amount of cost for defined contribution plan.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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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

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- Definition

Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan.

+ References

No definition available.

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- Definition

Percentage employer matches of the employee's percentage contribution matched.

+ References

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- Definition

Percentage of employer's matching contributions to a defined contribution plan that vests in a given year.

+ References

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- Definition

Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan.

+ References

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- Definition

Indicates tax status of defined contribution plan designed to provide retirement benefits.

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Retirement Plan (Details) - USD ($) $ in Thousands		12 Months Ended
Retirement Plan (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2021	Dec. 25, 2020	Dec. 27, 2019
Defined Contribution Plan Disclosure [Line Items]
Defined Contribution Plan, Tax Status [Extensible Enumeration]		Qualified Plan [Member]
Employer matching contribution, percent of match	50.00%	100.00%
Employer matching contribution, percent of employees' gross pay (up to)	3.00%	3.00%
Employers matching contribution, annual vesting percentage		50.00%
Maximum annual contribution percentage per employee (up to)		6.00%
Contribution cost		$ 4,471	$ 3,727	$ 2,069
Defined Contribution Plan, Tranche One \| C4
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution, percent of match	100.00%
Employer matching contribution, percent of employees' gross pay (up to)	1.00%
Defined Contribution Plan, Tranche Two \| C4
Defined Contribution Plan Disclosure [Line Items]
Employer matching contribution, percent of match	70.00%
Employer matching contribution, percent of employees' gross pay (up to)	5.00%