Tax Credit Investments - Amortization expense and tax benefit recognized (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Tax Credit Investments [Line items]
Intangible amortization expense	$ 1,324	$ 1,324
Income tax benefit	2,091	2,306
Housing projects
Tax Credit Investments [Line items]
Intangible amortization expense	432	360
Income tax benefit	(381)	(227)
Low income housing tax credit | Housing projects
Tax Credit Investments [Line items]
Intangible amortization expense	432	360
Income tax benefit	$ (381)	$ (227)