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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 27, 2025
Dec. 28, 2024
Components of Deferred Tax Assets and Liabilities [Abstract]    
Tax credits $ 33,886 $ 31,196
Inventory reserve 12,126 12,818
Other reserves and accruals 11,168 10,600
Non-statutory stock options 1,905 2,213
Lease liability 3,481 4,857
Research and development expenditures capitalization 63,372 65,520
Net operating loss carryforwards 17,125 17,295
Gross deferred tax assets 143,063 144,499
Valuation allowance (50,418) (47,938)
Total deferred tax assets 92,645 96,561
Right-of-use assets (2,803) (4,104)
Acquired intangibles and fixed assets (1,918) (445)
Total deferred tax liabilities (4,721) (4,549)
Net deferred tax assets $ 87,924 $ 92,012