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Financial Instruments - Marketable Securities (Details) - USD ($) | Sep. 28, 2024 | Sep. 30, 2023
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Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |
Amortized Cost | $ 51,304,000 |
Unrealized Gain | 122,000 |
Unrealized Loss | 0 |
Estimated Fair Value | 51,426,000 | $ 0
U.S. Treasury securities |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |
Amortized Cost | 51,304,000 |
Unrealized Gain | 122,000 |
Unrealized Loss | 0 |
Estimated Fair Value | $ 51,426,000 |

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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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- Definition Amount, before tax, of unrealized loss 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 (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481800/320-10-50-2 + Details
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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, 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 -Topic 326 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479130/326-30-45-1 + Details
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