Nature of Operations and Summary of Significant Accounting Policies (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) bankDivision	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) quarter bankDivision operatingSegment component	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Property, Plant and Equipment
Number of bank divisions | bankDivision	17		17
Number of operating segments | operatingSegment			1
Federal reserve balance or cash on hand required	$ 0		$ 0
Forecasting period used to determine ACL | quarter			4
Number of components used in methodology in determining ACL | component			2
Provision for credit losses	5,095,000	$ 8,382,000	$ 16,609,000	$ 11,373,000
Provision for credit loss unfunded	(1,556,000)	(41,000)	(4,827,000)	2,466,000
Provision for credit losses	3,539,000	$ 8,341,000	11,782,000	13,839,000
Provision for credit losses on debt securities			$ 0	0
Maximum term leases will be considered short-term			12 months
Maximum period up to which purchase price of business is allocated to assets acquired and liabilities assumed			1 year
Revenue from contracts with customers			$ 65,938,000	$ 61,062,000
Impairment losses on receivables related to contracts with customers	$ 0		$ 0		$ 0
Minimum
Property, Plant and Equipment
Period past due to consider loan as delinquent			30 days
Period past due to consider loan as non accrual			90 days
Period past due to consider loan as purchased credit-deteriorated loan			90 days
Number of days delinquent to charge off loans			120 days
Number of years for home equity loan origination term			10 years
Minimum | Building
Property, Plant and Equipment
Useful life of premises and equipment	15 years		15 years
Minimum | Furniture and Fixtures
Property, Plant and Equipment
Useful life of premises and equipment	3 years		3 years
Maximum
Property, Plant and Equipment
Period past due to consider loan as delinquent			89 days
Number of years for home equity loan origination term			15 years
Maximum | Building
Property, Plant and Equipment
Useful life of premises and equipment	40 years		40 years
Maximum | Furniture and Fixtures
Property, Plant and Equipment
Useful life of premises and equipment	10 years		10 years