Fair Value Measurements - Recurring Level III Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Realized and unrealized gain (loss) included in earnings			$ (100)
Fair Value, Assets Including Derivatives Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Fair Value Recurring Basis Unobservable Input Reconciliation Asset Gain Loss Statement Of Other Comprehensive Income Extensible List Not Disclosed Flag			Unrealized loss included in other comprehensive income (loss)
Level III
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 34,418	$ 37,035	$ 35,343	$ 41,763
Realized and unrealized income (loss) included in earnings	45	0	46	8
Purchase of securities	250	0	250	1,048
Maturities/calls	(17,389)	(66)	(18,156)	(3,141)
Unrealized loss included in other comprehensive income (loss)	(184)	(1,840)	(343)	(4,550)
Ending balance	17,140	35,129	17,140	35,129
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance	648	0	787	0
Realized and unrealized gain (loss) included in earnings	0	0	(139)	0
Purchase of securities	0	0	0	0
Maturities/calls	0	0	0	0
Unrealized loss included in other comprehensive income (loss)	0	0	0	0
Ending balance	648	0	648	0
Fair Value, Assets Including Derivatives Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	35,066	37,035	36,130	41,763
Realized and unrealized gain included in earnings	45	0	(93)	8
Purchase of securities	250	0	250	1,048
Maturities/calls	(17,389)	(66)	(18,156)	(3,141)
Unrealized loss included in other comprehensive income (loss)	(184)	(1,840)	(343)	(4,550)
Ending balance	$ 17,788	$ 35,129	$ 17,788	$ 35,129