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Marketable Securities - Narrative (Details)
$ in Thousands
Mar. 31, 2022
USD ($)
investment
Dec. 31, 2021
USD ($)
investment
Investments, Debt and Equity Securities [Abstract]    
Number of available-for-sale debt securities in an unrealized loss position 99 53
Aggregate fair value of available-for-sale debt securities in an unrealized loss position | $ $ 412,366 $ 185,296
Investments in continuous unrealized loss position for more than twelve months 0 0