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Investments - Fair Values and Gross Unrealized Gains and Losses on Investments (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
Schedule of Held-to-maturity Securities [Line Items]    
Investments, amortized cost $ 45,508 $ 58,733
Investments, gross unrealized gains 0 0
Investments, gross unrealized losses (80) (144)
Total investments 45,428 58,589
Investments, net carrying value 45,508 58,733
Commercial paper    
Schedule of Held-to-maturity Securities [Line Items]    
Investments, amortized cost 45,508 58,733
Investments, gross unrealized gains 0 0
Investments, gross unrealized losses (80) (144)
Total investments 45,428 58,589
Investments, net carrying value $ 45,508 $ 58,733