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Fair Value Measurements and Available for Sale Investments - Schedule of Unrealized Loss and Fair Values in a Loss Position (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | $ 106,530 | $ 404,386
Less than 12 Months, Gross Unrealized Losses | (120) | (4,144)
12 Months or Greater, Fair Value | 132,167 | 62,527
12 Months or Greater, Gross Unrealized Losses | (669) | (933)
Fair Value | 238,697 | 466,914
Gross Unrealized Losses | (789) | (5,077)
Agency securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 2,530 | 61,117
Less than 12 Months, Gross Unrealized Losses | (1) | (843)
12 Months or Greater, Fair Value | 17,723 | 3,437
12 Months or Greater, Gross Unrealized Losses | (68) | (70)
Fair Value | 20,253 | 64,554
Gross Unrealized Losses | (69) | (913)
Certificates of Deposit |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 0 | 481
Less than 12 Months, Gross Unrealized Losses | 0 | (10)
12 Months or Greater, Fair Value | 244 | 2,375
12 Months or Greater, Gross Unrealized Losses | (2) | (49)
Fair Value | 244 | 2,856
Gross Unrealized Losses | (2) | (59)
Commercial and corporate obligations |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 5,160 | 44,213
Less than 12 Months, Gross Unrealized Losses | (9) | (624)
12 Months or Greater, Fair Value | 15,200 | 14,778
12 Months or Greater, Gross Unrealized Losses | (74) | (292)
Fair Value | 20,360 | 58,991
Gross Unrealized Losses | (83) | (916)
US Treasury Securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 98,840 | 298,575
Less than 12 Months, Gross Unrealized Losses | (110) | (2,667)
12 Months or Greater, Fair Value | 99,000 | 41,937
12 Months or Greater, Gross Unrealized Losses | (525) | (522)
Fair Value | 197,840 | 340,513
Gross Unrealized Losses | $ (635) | $ (3,189)

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