Marketable Securities - Amortized Cost and Fair Value of Debt Securities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Fair Value to Amortized Cost
Amortized Cost	$ 75,340	$ 386,788
Allowance for Credit Losses	0	0
Net Amortized Cost	75,340	386,788
Gross Unrealized Gains	29	116
Gross Unrealized Losses	0	(47)
Fair Value	75,369	386,857
Marketable securities
Fair Value to Amortized Cost
Fair Value	75,369	386,857
U.S. treasury bills
Fair Value to Amortized Cost
Amortized Cost	14,998	312,262
Allowance for Credit Losses	0	0
Net Amortized Cost	14,998	312,262
Gross Unrealized Gains	0	82
Gross Unrealized Losses	0	(47)
Fair Value	14,998	312,297
U.S. treasury bonds
Fair Value to Amortized Cost
Amortized Cost	60,342	74,526
Allowance for Credit Losses	0	0
Net Amortized Cost	60,342	74,526
Gross Unrealized Gains	29	34
Gross Unrealized Losses	0	0
Fair Value	$ 60,371	$ 74,560

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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