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Income Taxes - Significant Components of Company's Deferred Tax Assets and Liabilities (Details) - USD ($) | Sep. 28, 2024 | Sep. 30, 2023
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Deferred tax assets |  |
Net operating loss and other tax carryforwards | $ 137,100,000 | $ 125,800,000
Capitalized research and development | 96,800,000 | 70,100,000
Non-deductible accruals | 41,000,000.0 | 32,700,000
Non-deductible reserves | 37,800,000 | 42,800,000
Stock-based compensation | 21,900,000 | 19,800,000
Nonqualified deferred compensation plan | 15,900,000 | 13,500,000
Lease liability | 26,200,000 | 14,000,000.0
Other temporary differences | 21,000,000.0 | 5,900,000
Deferred tax assets, gross | 397,700,000 | 324,600,000
Less: valuation allowance | (143,100,000) | (114,700,000)
Deferred tax assets, net | 254,600,000 | 209,900,000
Deferred tax liabilities |  |
Depreciation and amortization | (161,800,000) | (160,300,000)
Right of use asset | (23,400,000) | (13,200,000)
Deferred tax liabilities, net | (185,200,000) | (173,500,000)
Deferred Tax Assets, Net | $ 69,400,000 | $ 36,400,000

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- Definition Amount of deferred tax liability attributable to taxable temporary differences. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(26)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(26)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(15)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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