Tax Credit Investments - Income Statement Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Components of Income Tax Expense:
Affordable housing tax credits and other tax benefits	$ 1,485	$ 1,184	$ 4,404	$ 3,542
Other tax credit investment credits and tax benefits	3,176	2,557	9,827	7,647
Total reduction in income tax expense	4,661	3,741	14,231	11,189
Non-Interest Expenses
Amortization of Tax Credit Investments:
Affordable housing tax credit investment losses	523	598	2,398	1,666
Affordable housing tax credit investment impairment losses	954	266	1,850	891
Other tax credit investment losses	374	308	1,099	1,003
Other tax credit investment impairment losses	2,340	1,933	8,115	5,634
Total amortization of tax credit investments recorded in non-interest expense	$ 4,191	$ 3,105	$ 13,462	$ 9,194