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Marketable Securities - Stated Maturities of Marketable Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Amortized Cost
Due within one year	$ 342,294	$ 64,914
Due after one year through two years	112,471	390,090
Amortized Cost	454,765	455,004
Estimated Fair Value
Due within one year	335,772	64,879
Due after one year through two years	109,101	387,996
Total	$ 444,873	$ 452,875

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Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Two

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Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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