Securities - Narrative (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) security $ / shares shares	Dec. 31, 2021 USD ($) security	Dec. 31, 2020 USD ($)
Debt and Equity Securities, FV-NI [Line Items]
Private mortgage-backed security fair value	$ 800,000	$ 900,000
Number of securities | security	666	648
Number of securities in an unrealized loss position | security	644	371
Investment securities, pledged as collateral for public deposits	$ 758,000,000.0	$ 951,400,000
Proceeds from sales of securities available for sale	0	106,484,000	$ 219,697,000
Losses (gains) on securities available for sale	0	(1,237,000)	$ 8,024,000
FHLB stock and FRB stock, cost	39,600,000	22,300,000
FHLB, cost	14,700,000	4,600,000
FRB stock	$ 24,900,000	$ 17,800,000
Visa, Inc | Common Class B
Debt and Equity Securities, FV-NI [Line Items]
Stock owned (in shares) | shares	12,356
Carrying value of shares	$ 0
Visa, Inc | Common Class A
Debt and Equity Securities, FV-NI [Line Items]
Conversion price (in usd per share) | $ / shares	$ 1.60
Conversion of stock (in shares) | shares	19,758