Share-based Compensation Arrangement by Share-based Payment Award, Grants in Period, Fair Value

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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- Definition

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

+ 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 (i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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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.

+ 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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Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
Stock-Based Compensation (Details) - USD ($) $ in Thousands	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost	$ 1,087	$ 1,336	$ 6,746	$ 5,408
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value			0	6,211
Unrecognized compensation cost	1,519		$ 1,519
Weighted-Average Remaining Service Period (years)			1 year 1 month 6 days
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value			$ 6,431	361
Unrecognized compensation cost	1,994		$ 1,994
Weighted-Average Remaining Service Period (years)			10 months 24 days
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value			$ 5,920	$ 0
Unrecognized compensation cost	$ 876		$ 876
Weighted-Average Remaining Service Period (years)			1 year 3 months 18 days