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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 30, 2023
Dec. 31, 2022
Components of Deferred Tax Assets and Liabilities [Abstract]    
Tax credits $ 29,074 $ 33,025
Inventory reserve 14,626 14,269
Other reserves and accruals 9,580 6,527
Non-statutory stock options 2,771 3,180
Lease liability 6,175 6,024
Research and development expenditures capitalization 51,698 36,821
Net operating loss carryforwards 17,484 18,173
Gross deferred tax assets 131,408 118,019
Valuation allowance (45,864) (43,295)
Total deferred tax assets 85,544 74,724
Right-of-use assets (5,445) (5,219)
Acquired intangibles and fixed assets (863) (4,342)
Unrealized investment gains (103) (103)
Tax on undistributed earnings (169) (146)
Total deferred tax liabilities (6,580) (9,810)
Net deferred tax assets $ 78,964 $ 64,914