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, 2025	Dec. 31, 2024
Schedule Of Available For Sale Securities [Line Items]
Debt securities, Amortized Cost	$ 215,557	$ 222,439
Debt securities, Unrealized Gains	465	489
Debt securities, Unrealized Losses	(15)	(14)
Debt securities, Estimated Fair Value	$ 216,007	$ 222,914
Certificates of Deposit | Within 1 Year
Schedule Of Available For Sale Securities [Line Items]
Debt securities, Maturity	Within 1 year	Within 1 year
Debt securities, Amortized Cost	$ 2,394	$ 2,884
Debt securities, Unrealized Gains	8	14
Debt securities, Estimated Fair Value	$ 2,402	$ 2,898
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	$ 148,399	$ 172,178
Debt securities, Unrealized Gains	270	391
Debt securities, Unrealized Losses	(5)
Debt securities, Estimated Fair Value	$ 148,664	$ 172,569
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	$ 42,264	$ 24,878
Debt securities, Unrealized Gains	184	83
Debt securities, Unrealized Losses		(2)
Debt securities, Estimated Fair Value	$ 42,448	$ 24,959
U.S. Government agency securities | Within 1 Year
Schedule Of Available For Sale Securities [Line Items]
Debt securities, Maturity		Within 1 year
Debt securities, Amortized Cost		$ 7,500
Debt securities, Unrealized Losses		(7)
Debt securities, Estimated Fair Value		$ 7,493
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	$ 22,500	$ 14,999
Debt securities, Unrealized Gains	3	1
Debt securities, Unrealized Losses	(10)	(5)
Debt securities, Estimated Fair Value	$ 22,493	$ 14,995