Tax Credit Investments - Income Statement Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Components of Income Tax Expense:
Affordable housing tax credits and other tax benefits	$ 1,460	$ 1,614	$ 2,919	$ 2,358
Other tax credit investment credits and tax benefits	3,430	2,539	6,651	5,090
Total reduction in income tax expense	4,890	4,153	9,570	7,448
Non-Interest Expenses
Amortization of Tax Credit Investments:
Affordable housing tax credit investment losses	938	653	1,875	1,068
Affordable housing tax credit investment impairment losses	448	363	896	625
Other tax credit investment losses	719	386	725	695
Other tax credit investment impairment losses	2,913	1,791	5,775	3,701
Total amortization of tax credit investments recorded in non-interest expense	$ 5,018	$ 3,193	$ 9,271	$ 6,089