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Investment Securities - Summary of Amortized Cost, Unrealized Gains and Losses, Allowances for Credit Losses and Fair Value of Available-for-Sale Investments Aggregated by Maturity and Security Type (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Schedule Of Available For Sale Securities [Line Items]
Debt securities, Amortized Cost	$ 210,321	$ 202,586
Debt securities, Unrealized Gains	134	414
Debt securities, Unrealized Losses	(402)	(11)
Debt securities, Estimated Fair Value	$ 210,053	$ 202,989
U.S. Treasury Securities | Within 1 Year
Schedule Of Available For Sale Securities [Line Items]
Debt securities, Maturity	Within 1 year	Within 1 year
Debt securities, Amortized Cost	$ 102,438	$ 102,285
Debt securities, Unrealized Gains	121	247
Debt securities, Unrealized Losses	(29)
Debt securities, Estimated Fair Value	$ 102,530	$ 102,532
U.S. Treasury Securities | Greater than 1 year
Schedule Of Available For Sale Securities [Line Items]
Debt securities, Maturity	Greater than 1 year	Greater than 1 year
Debt securities, Amortized Cost	$ 92,883	$ 85,301
Debt securities, Unrealized Gains	13	165
Debt securities, Unrealized Losses	(304)	0
Debt securities, Estimated Fair Value	$ 92,592	$ 85,466
U.S. Government agency securities | Greater than 1 year
Schedule Of Available For Sale Securities [Line Items]
Debt securities, Maturity	Greater than 1 year	Greater than 1 year
Debt securities, Amortized Cost	$ 15,000	$ 15,000
Debt securities, Unrealized Gains		2
Debt securities, Unrealized Losses	(69)	(11)
Debt securities, Estimated Fair Value	$ 14,931	$ 14,991

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