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Marketable Securities - (Tables) | 6 Months Ended
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Jul. 02, 2022
Marketable Securities [Abstract] |
Schedule of Marketable Securities by Category | At July 2, 2022 and January 1, 2022, marketable securities are categorized as follows:
|  | Amortized Cost |  |  | Gross Unrealized Holding Gains |  |  | Gross Unrealized Holding Losses |  |  | Fair Value |
July 2, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal notes and bonds |  | $ | 180,552 |  |  | $ | 28 |  |  | $ | 2,215 |  |  | $ | 178,365 |
Asset-backed securities |  |  | 1,939 |  |  |  | — |  |  |  | 29 |  |  |  | 1,910 |
Certificates of deposit |  |  | 27,200 |  |  |  | — |  |  |  | 90 |  |  |  | 27,110 |
Commercial paper |  |  | 89,920 |  |  |  | 5 |  |  |  | 209 |  |  |  | 89,716 |
Corporate bonds |  |  | 68,798 |  |  |  | — |  |  |  | 1,074 |  |  |  | 67,724 |
Total marketable securities |  | $ | 368,409 |  |  | $ | 33 |  |  | $ | 3,617 |  |  | $ | 364,825 |
January 1, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal notes and bonds |  | $ | 171,203 |  |  | $ | 38 |  |  | $ | 261 |  |  | $ | 170,980 |
Asset-backed securities |  |  | 2,009 |  |  |  | — |  |  |  | — |  |  |  | 2,009 |
Certificates of deposit |  |  | 33,200 |  |  |  | 2 |  |  |  | 10 |  |  |  | 33,192 |
Commercial paper |  |  | 73,152 |  |  |  | 2 |  |  |  | 41 |  |  |  | 73,113 |
Corporate bonds |  |  | 62,634 |  |  |  | 29 |  |  |  | 216 |  |  |  | 62,447 |
Total marketable securities |  | $ | 342,198 |  |  | $ | 71 |  |  | $ | 528 |  |  | $ | 341,741 |
Schedule of Amortized Cost and Estimated Fair Value of Marketable Securities Classified by Maturity Date | The amortized cost and estimated fair value of marketable securities classified by the maturity date listed on the security, regardless of the Condensed Consolidated Balance Sheets classification, is as follows at July 2, 2022 and January 1, 2022:
|  | July 2, 2022 |  |  | January 1, 2022 |
|  | Amortized Cost |  |  | Fair Value |  |  | Amortized Cost |  |  | Fair Value |
Due within one year |  | $ | 286,174 |  |  | $ | 284,096 |  |  | $ | 219,353 |  |  | $ | 219,211 |
Due after one through five years |  |  | 82,235 |  |  |  | 80,729 |  |  |  | 122,845 |  |  |  | 122,530 |
Due after five years |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total marketable securities |  | $ | 368,409 |  |  | $ | 364,825 |  |  | $ | 342,198 |  |  | $ | 341,741 |
Summary of Estimated Fair Value and Gross Unrealized Holding Losses of Marketable Securities in Unrealized Loss Position | The following table summarizes the estimated fair value and gross unrealized holding losses of marketable securities, aggregated by investment instrument and period of time in an unrealized loss position, at July 2, 2022 and January 1, 2022:
|  | In Unrealized Loss Position For Less Than 12 Months |  |  | In Unrealized Loss Position For Greater Than 12 Months |
|  | Fair Value |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Gross Unrealized Losses |
July 2, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal notes and bonds |  | $ | 173,915 |  |  | $ | 2,120 |  |  | $ | 6,636 |  |  | $ | 95 |
Asset-backed securities |  |  | 1,939 |  |  |  | 29 |  |  |  | — |  |  |  | — |
Certificates of deposit |  |  | 27,200 |  |  |  | 90 |  |  |  | — |  |  |  | — |
Commercial paper |  |  | 89,920 |  |  |  | 209 |  |  |  | — |  |  |  | — |
Corporate bonds |  |  | 66,653 |  |  |  | 1,028 |  |  |  | 2,145 |  |  |  | 46 |
Total |  | $ | 359,627 |  |  | $ | 3,476 |  |  | $ | 8,781 |  |  | $ | 141 |
January 1, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal notes and bonds |  | $ | 113,790 |  |  | $ | 262 |  |  | $ | — |  |  | $ | — |
Certificates of deposit |  |  | 16,300 |  |  |  | 10 |  |  |  | — |  |  |  | — |
Commercial paper |  |  | 58,681 |  |  |  | 40 |  |  |  | — |  |  |  | — |
Corporate bonds |  |  | 53,661 |  |  |  | 150 |  |  |  | 2,587 |  |  |  | 66 |
Total |  | $ | 242,432 |  |  | $ | 462 |  |  | $ | 2,587 |  |  | $ | 66 |

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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI https://asc.fasb.org/topic&trid=2196928 + Details
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- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563 + Details
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