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Investments (Tables)
9 Months Ended
Sep. 30, 2023
Investments, Debt and Equity Securities [Abstract]  
Summary of Investments
Investments consisted of the following at September 30, 2023 and December 31, 2022 (amounts in thousands):
September 30, 2023December 31, 2022
Debt securities
Available-for-sale$62,755 $66,813 
Equity securities
Private equity funds2,911 4,373 
Equity method investments9,063 8,762 
Total investments$74,729 $79,948 
Schedule of Amortized Cost and Estimated Fair Value in Debt Securities
The amortized cost and fair value of investments in debt securities at September 30, 2023 and December 31, 2022 was as follows (amounts in thousands):
September 30, 2023
Amortized CostGross Unrealized GainsGross Unrealized (Losses)Aggregate Fair Value
Available-for-sale
Government securities$62,969 $36 $(250)$62,755 
December 31, 2022
Amortized CostGross Unrealized GainsGross Unrealized (Losses)Aggregate Fair Value
Available-for-sale
Government securities$67,049 $$(237)$66,813