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Fair Value Measurements - Schedule of fair value assets measured on recurring basis (Details) - Recurring - USD ($) $ in Thousands | Dec. 25, 2022 | Dec. 26, 2021
--- | --- | ---
Assets: |  |
Investments in rabbi trust | $ 4,250 | $ 6,276
Total assets measured at fair value | 4,250 | 6,276
Level 1 |  |
Assets: |  |
Investments in rabbi trust | 4,250 | 6,276
Total assets measured at fair value | 4,250 | 6,276
Level 2 |  |
Assets: |  |
Investments in rabbi trust | 0 | 0
Total assets measured at fair value | 0 | 0
Level 3 |  |
Assets: |  |
Investments in rabbi trust | 0 | 0
Total assets measured at fair value | $ 0 | $ 0

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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