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Schedule of Reported Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands | Sep. 29, 2024 | Dec. 31, 2023
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Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | $ 120,817 | $ 140,377
Available-for-sale marketable securities, Unrealized Gain | 440 | 249
Available-for-sale marketable securities, Unrealized (Loss) | (7,162) | (8,170)
Available-for-sale marketable securities, Fair Market Value | 114,095 | 132,456
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 52,428 | 87,538
Marketable securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 41,673 | 62,385
Available-for-sale marketable securities, Unrealized Gain | 20 | 36
Available-for-sale marketable securities, Unrealized (Loss) | (62) | (267)
Available-for-sale marketable securities, Fair Market Value | 41,631 | 62,154
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | 9,973 | 34,844
Long-term marketable securities |  |
Schedule of Available-for-sale Securities |  |
Available-for-sale marketable securities, Cost | 79,144 | 77,992
Available-for-sale marketable securities, Unrealized Gain | 420 | 213
Available-for-sale marketable securities, Unrealized (Loss) | (7,100) | (7,903)
Available-for-sale marketable securities, Fair Market Value | 72,464 | 70,302
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses | $ 42,455 | $ 52,694

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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/2003/role/disclosureRef -Topic 320 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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