Acquisition and Preliminary Purchase Price Allocation - Additional Information (Details) - USD ($) $ in Thousands, shares in Millions		3 Months Ended		6 Months Ended
	Mar. 10, 2023	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Asset Acquisition [Line Items]
Acquisition of Citizens Commerce Bancshares, Inc.				$ 62,078
Non-Impaired Loans	$ 246,400
Merger related expenses		$ 0	$ 0	5,645	$ 0
Citizens Commerce Bancshares, Inc.
Asset Acquisition [Line Items]
Stock Issued During Period, Shares, Acquisitions	0.7
Acquisition of Citizens Commerce Bancshares, Inc.	$ 62,100
Business Combination, Assets Acquired With Credit Deterioration	4,900
Business Combination, Acquired Receivables, Gross Contractual Amount	8,500
Accounts Receivable, Allowance for Credit Loss	3,600
Time Deposits, Premium (Discount)	$ 600
Amortization Period Of Time Deposits Premium	5 years
Allowance for credit losses acquired	$ 2,000
Merger related expenses				5,600
Professional Fees				1,600
Severance Costs				1,400
Data Processing Costs				1,300
Citizens Commerce Bancshares, Inc. | Core Deposits
Asset Acquisition [Line Items]
Core deposit intangible	$ 8,278	8,278	$ 0	$ 8,278	$ 0
Finite-Lived Intangible Assets, Remaining Amortization Period	10 years
Gains on sale of investment securities, net		$ 41,000
Citizens Commerce Bancshares, Inc. | Citizens Commerce Bancshares, Inc.
Asset Acquisition [Line Items]
Equity ownership positions in the community bank holding companies (percent)	100.00%