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Investments (Details) - USD ($) $ in Thousands	6 Months Ended
Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Investments
Investments - Available-for-sale	$ 103,466		$ 188,317
Available-for-sale investments
Amortized Cost	103,656
Gross Unrealized Gains	66
Gross Unrealized (Losses)	(256)
Estimated Fair Value	103,466
Net unrealized gain (loss) on available-for-sale debt securities	(656)	$ 165
Corporate bonds
Available-for-sale investments
Amortized Cost	102,806
Gross Unrealized Gains	66
Gross Unrealized (Losses)	(255)
Estimated Fair Value	102,617
Agency bonds
Available-for-sale investments
Amortized Cost	850
Gross Unrealized (Losses)	(1)
Estimated Fair Value	$ 849