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Short-Term Investments (Details) $ in Thousands	Mar. 31, 2025 USD ($) item	Dec. 31, 2024 USD ($) item
Short-Term Investments
Credit Loss related to sale of securities	$ 0	$ 0
Short-term Investments
Short-Term Investments
Amortized Cost	240,619	268,149
Gross Unrealized Gains	65	167
Gross Unrealized Losses	(5)	(4)
Fair Value	$ 240,679	$ 268,312
Number of short term investments in unrealized loss position for less than 12 months | item	5	2
Aggregate value of short term investments in unrealized loss position for less than 12 months	$ 22,000	$ 9,800
Aggregate value of short term investments in other than temporary unrealized loss position for less than 12 months	0	0
Treasury notes
Short-Term Investments
Amortized Cost	109,318	129,064
Gross Unrealized Gains	49	136
Gross Unrealized Losses	(2)	(3)
Fair Value	109,365	129,197
Reverse repurchase agreements
Short-Term Investments
Amortized Cost	90,000	100,000
Fair Value	90,000	100,000
Treasury bills
Short-Term Investments
Amortized Cost	39,147	39,085
Gross Unrealized Gains	16	31
Gross Unrealized Losses	(2)	(1)
Fair Value	39,161	$ 39,115
Corporate debt securities
Short-Term Investments
Amortized Cost	2,154
Gross Unrealized Losses	(1)
Fair Value	$ 2,153

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), other than in a continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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