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Fair Value of Financial Instruments - Contractual maturities of investments (Details)
$ in Thousands
Oct. 01, 2022
USD ($)
Cost  
Due in one year or less, Cost $ 611,264
Due after one year through ten years, Cost 315,952
Due after ten years, Cost 24,780
Total Cost 951,996
Fair Value  
Due in one year or less, Fair Value 601,513
Due after one year through ten years, Fair Value 307,056
Due after ten years, Fair Value 24,780
Total Fair Value $ 933,349