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Fair Value Measurements - Investment by Maturity Dates (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Fair Value Disclosures [Abstract]    
Due in 1 year or less $ 1,608,879  
Due in 1 to 2 years 737,924  
Total debt securities $ 2,346,803 $ 2,322,469