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Fair Value Measurements - Summary of Assets at Fair Value on a Recurring Basis (Details) - Recurring - USD ($) $ in Thousands	Jul. 14, 2019	Dec. 30, 2018
Assets:
Investments in rabbi trust	$ 6,808	$ 8,198
Total assets measured at fair value	6,808	8,198
Level 1
Assets:
Investments in rabbi trust	6,808	8,198
Total assets measured at fair value	6,808	8,198
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

Deferred Compensation Plan Assets, Fair Value Disclosure

+ References

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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 http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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