Fair Value Measurements - Schedule of Financial Assets Measured at Fair Value on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	$ 505,037	$ 503,658
Level 1
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	297,284	280,209
Level 2
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	207,753	223,449
Level 3
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	0	0
U.S. Government Obligations [Member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	297,284	280,209
U.S. Government Obligations [Member] | Level 1
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	297,284	280,209
U.S. Government Obligations [Member] | Level 2
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	0	0
U.S. Government Obligations [Member] | Level 3
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	0	0
Agency obligations [member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	12,701	21,270
Agency obligations [member] | Level 1
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	0	0
Agency obligations [member] | Level 2
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	12,701	21,270
Agency obligations [member] | Level 3
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	0	0
Certificates of Deposit [Member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	2,443	2,440
Certificates of Deposit [Member] | Level 1
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	0	0
Certificates of Deposit [Member] | Level 2
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	2,443	2,440
Certificates of Deposit [Member] | Level 3
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	0	0
Corporate Debt Securities [Member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	192,609	196,755
Corporate Debt Securities [Member] | Level 1
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	0	0
Corporate Debt Securities [Member] | Level 2
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	192,609	196,755
Corporate Debt Securities [Member] | Level 3
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities	$ 0	0
Commercial Paper [Member]
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities		2,984
Commercial Paper [Member] | Level 1
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities		0
Commercial Paper [Member] | Level 2
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities		2,984
Commercial Paper [Member] | Level 3
Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items]
Total Investment securities		$ 0