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Marketable Investment Securities (Tables)
 9 Months Ended
Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract]  
Schedule of Marketable Securities
Marketable investment securities consisted of the following (in thousands):
September 30, 2025December 31, 2024
Current marketable investment securities:
Equity securities$8,907 $3,555 
Debt securities - AFS187,495 169,866 
Debt securities - HTM(1)
5,584 — 
Total current marketable investment securities$201,986 $173,421 
(1)We held no debt securities - HTM as of December 31, 2024.
Schedule of Debt Securities, Available-for-Sale and Held-to-Maturity
The following tables present our debt securities (in thousands):
September 30, 2025
Amortized CostUnrealizedEstimated Fair Value
GainsLosses
U.S. government securities - AFS$187,255 $242 $(2)$187,495 
U.S. government securities - HTM5,584 9 — 5,593 
Total debt securities$192,839 $251 $(2)$193,088 
December 31, 2024
Amortized CostUnrealizedEstimated Fair Value
GainsLosses
U.S. government securities - AFS$169,636 $244 $(14)$169,866 
U.S. government securities - HTM(1)
— — — — 
Total debt securities$169,636 $244 $(14)$169,866 
(1)We held no debt securities - HTM as of December 31, 2024.