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v3.23.1

Acquisition and Preliminary Purchase Price Allocation - Additional Information (Details) - USD ($) $ in Thousands, shares in Millions |  | 3 Months Ended
--- | --- | ---
Mar. 10, 2023 | Mar. 31, 2023 | Mar. 31, 2022
Asset Acquisition [Line Items] |  |  |
Acquisition of Citizens Commerce Bancshares, Inc. |  | $ 62,078 |
Non-Impaired Loans | $ 246,400 |  |
Merger related expenses |  | 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
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% |  |

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