Fair Value Measurements - Additional Information (Details) - USD ($) |
Dec. 29, 2018 |
Dec. 30, 2017 |
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| Fair Value Disclosures [Abstract] | ||
| Transfers into level 2 from level 1 assets | $ 0 | $ 0 |
| Transfers into level 1 from level 2 assets | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount of transfers of assets measured on a recurring basis out of Level 1 of the fair value hierarchy into Level 2. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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