Fair Value of Financial Instruments - Unrealized Gains and Losses (Details) - USD ($) $ in Thousands	Apr. 01, 2023	Dec. 31, 2022
Continuous unrealized loss position, Fair Value
Fair value of available-for-sale investments, continuous loss position for less than twelve months	$ 83,375	$ 383,736
Fair value of available-for-sale investments, continuous loss position for twelve months or greater	312,120	285,676
Total fair value of available-for-sale investments, continuous loss position	395,495	669,412
Continuous unrealized loss position, Gross Unrealized Losses
Available-for-sale investments, continuous loss position for less than 12 months, gross unrealized losses	(645)	(5,923)
Available-for-sale investments, continuous loss position for 12 months or greater, gross unrealized losses	(7,368)	(7,631)
Available-for-sale investments, total gross unrealized losses	(8,013)	(13,554)
Corporate debt securities
Continuous unrealized loss position, Fair Value
Fair value of available-for-sale investments, continuous loss position for less than twelve months	59,723	307,085
Fair value of available-for-sale investments, continuous loss position for twelve months or greater	222,231	185,467
Total fair value of available-for-sale investments, continuous loss position	281,954	492,552
Continuous unrealized loss position, Gross Unrealized Losses
Available-for-sale investments, continuous loss position for less than 12 months, gross unrealized losses	(625)	(5,297)
Available-for-sale investments, continuous loss position for 12 months or greater, gross unrealized losses	(4,895)	(4,090)
Available-for-sale investments, total gross unrealized losses	(5,520)	(9,387)
Government debt securities
Continuous unrealized loss position, Fair Value
Fair value of available-for-sale investments, continuous loss position for less than twelve months	23,652	76,651
Fair value of available-for-sale investments, continuous loss position for twelve months or greater	89,889	100,209
Total fair value of available-for-sale investments, continuous loss position	113,541	176,860
Continuous unrealized loss position, Gross Unrealized Losses
Available-for-sale investments, continuous loss position for less than 12 months, gross unrealized losses	(20)	(626)
Available-for-sale investments, continuous loss position for 12 months or greater, gross unrealized losses	(2,473)	(3,541)
Available-for-sale investments, total gross unrealized losses	$ (2,493)	$ (4,167)