Marketable Debt and Equity Securities - Unrealized Losses (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Available-for-sale Securities
Fair value, less than 12 months	$ 457,591	$ 90,246
Unrealized losses, less than 12 months	(6,940)	(105)
Fair value, 12 months or greater	3,826	300,465
Unrealized losses, 12 months or greater	(5)	(1,396)
Corporate Securities
Schedule of Available-for-sale Securities
Fair value, less than 12 months	132,658	50,337
Unrealized losses, less than 12 months	(1,121)	(51)
Fair value, 12 months or greater	3,826	45,872
Unrealized losses, 12 months or greater	(5)	(115)
Government Securities
Schedule of Available-for-sale Securities
Fair value, less than 12 months	324,933	39,909
Unrealized losses, less than 12 months	(5,819)	(54)
Fair value, 12 months or greater	0	254,593
Unrealized losses, 12 months or greater	$ 0	$ (1,281)