Quarterly report pursuant to Section 13 or 15(d)

Investments - Breakdown of Investments in Unrealized Loss Position (Details)

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Investments - Breakdown of Investments in Unrealized Loss Position (Details) - USD ($)
$ in Thousands
Mar. 31, 2023
Dec. 31, 2022
U.S. Treasury securities    
Fair Value    
Less than 12 months $ 0 $ 16,702
Total 14,323 24,701
Gross Unrealized Loss    
Less than 12 months 0 (365)
Total (259) (423)
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer 14,323 7,999
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss (259) (58)
Corporate bonds    
Fair Value    
Less than 12 months 0 18,951
Total 12,547 20,429
Gross Unrealized Loss    
Less than 12 months 0 (387)
Total (290) (414)
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer 12,547 1,478
Debt Securities, Available-for-Sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss $ (290) $ (27)