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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 28, 2024
Dec. 30, 2023
Components of Deferred Tax Assets and Liabilities [Abstract]    
Tax credits $ 31,196 $ 29,074
Inventory reserve 12,818 14,626
Other reserves and accruals 10,600 9,580
Non-statutory stock options 2,213 2,771
Lease liability 4,857 6,175
Research and development expenditures capitalization 65,520 51,698
Net operating loss carryforwards 17,295 17,484
Gross deferred tax assets 144,499 131,408
Valuation allowance (47,938) (45,864)
Total deferred tax assets 96,561 85,544
Right-of-use assets (4,104) (5,445)
Acquired intangibles and fixed assets (445) (863)
Unrealized investment gains 0 (103)
Tax on undistributed earnings 0 (169)
Total deferred tax liabilities (4,549) (6,580)
Net deferred tax assets $ 92,012 $ 78,964