Tax Credit Investments - Income Statement Disclosures (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Components of Income Tax Expense:
Affordable housing tax credits and other tax benefits	$ 1,459	$ 744
Other tax credit investment credits and tax benefits	3,221	2,551
Total reduction in income tax expense	4,680	3,295
Non-Interest Expenses
Amortization of Tax Credit Investments:
Affordable housing tax credit investment losses	937	415
Affordable housing tax credit investment impairment losses	448	262
Other tax credit investment losses	6	309
Other tax credit investment impairment losses	2,862	1,910
Total amortization of tax credit investments recorded in non-interest expense	$ 4,253	$ 2,896