Tax Credit Investments - Affordable Housing Tax Credit Investments and Other Tax Credit Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Components of Income Tax Expense:
Affordable housing tax credits and other tax benefits	$ 5,872	$ 4,748	$ 3,525
Other tax credit investment credits and tax benefits	20,069	11,617	9,320
Total reduction in income tax expense	25,941	16,365	12,845
Amortization Recorded in Non-Interest Expenses
Amortization of Tax Credit Investments:
Affordable housing tax credit investment losses	3,198	2,311	1,895
Affordable housing tax credit investment impairment losses	2,466	1,187	1,416
Other tax credit investment losses	1,266	1,254	811
Other tax credit investment impairment losses	11,079	7,655	6,788
Total amortization of tax credit investments recorded in non-interest expense	$ 18,009	$ 12,407	$ 10,910