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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 25, 2021
Components of Deferred Tax Assets and Liabilities [Abstract]    
Tax credits $ 33,025 $ 41,650
Inventory reserve 14,269 13,691
Other reserves and accruals 6,527 8,523
Non-statutory stock options 3,180 2,837
Lease liability 6,024 6,717
Research and development expenditures capitalization 36,821 19,553
Net operating loss carryforwards 18,173 18,395
Gross deferred tax assets 118,019 111,366
Valuation allowance (43,295) (40,698)
Total deferred tax assets 74,724 70,668
Right-of-use assets (5,219) (5,910)
Acquired intangibles and fixed assets (4,342) (6,163)
Unrealized investment gains (103) (105)
Tax on undistributed earnings (146) (118)
Total deferred tax liabilities (9,810) (12,296)
Net deferred tax assets $ 64,914 $ 58,372