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Fair Value of Financial Instruments - Activity in Level 3 financial instruments (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 01, 2022 | Jan. 02, 2021
Fair value assets reconciliation of changes |  |
Balance at the beginning of the period | $ 5,340 | $ 5,647
Loss included in other comprehensive income (loss) | (360) | (307)
Balance at the end of the period | 4,980 | $ 5,340
Significant Unobservable Inputs (Level 3) | Recurring | Auction rate securities |  |
Fair value assets reconciliation of changes |  |
Balance at the end of the period | $ 4,980 |

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- Definition Amount of gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258 + Details
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