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Available-For-Sale Debt Securities - Investments Classified by Contractual Maturity Date (Details) - USD ($)
Sep. 30, 2022
Dec. 31, 2021
Amortized Cost    
Due within one year $ 96,804,000  
Due after one year through three years 3,013,000  
Total 99,817,000  
Fair Value    
Due within one year 96,606,000  
Due after one year through three years 2,981,000  
Total $ 99,587,000 $ 0