Investment Securities - Allowance for Credit Losses HTM (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Held-to-maturity
Beginning balance	$ 3,214	$ 1,888	$ 3,214	$ 1,388
Provision for credit loss expense	0	1,326	0	1,826
Net (decrease) increase in allowance on previously impaired securities	0		0
Ending balance	3,214	3,214	3,214	3,214
State and political subdivisions
Held-to-maturity
Beginning balance	2,252	362	2,006	110
Provision for credit loss expense	0	572	0	824
Net (decrease) increase in allowance on previously impaired securities	(2,061)		(1,815)
Ending balance	191	934	191	934
Other securities
Held-to-maturity
Beginning balance	962	1,526	1,208	1,278
Provision for credit loss expense	0	754	0	1,002
Net (decrease) increase in allowance on previously impaired securities	2,061		1,815
Ending balance	$ 3,023	$ 2,280	$ 3,023	$ 2,280