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Business Combinations and Asset Acquisitions - acquisition-related expenses (Details) - Bank of Commerce - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Asset Acquisition [Line Items] |  |  |  |
Business Combination, Acquisition Related Costs | $ 1,749 | $ 510 | $ 4,337 | $ 510
Compensation and employee benefits |  |  |  |
Asset Acquisition [Line Items] |  |  |  |
Business Combination, Acquisition Related Costs | 569 | 0 | 939 | 0
Occupancy |  |  |  |
Asset Acquisition [Line Items] |  |  |  |
Business Combination, Acquisition Related Costs | 101 | 0 | 920 | 0
Data processing and software |  |  |  |
Asset Acquisition [Line Items] |  |  |  |
Business Combination, Acquisition Related Costs | 381 | 0 | 1,421 | 0
Legal and professional fees |  |  |  |
Asset Acquisition [Line Items] |  |  |  |
Business Combination, Acquisition Related Costs | 153 | 510 | 245 | 510
Advertising and promotion |  |  |  |
Asset Acquisition [Line Items] |  |  |  |
Business Combination, Acquisition Related Costs | 0 | 0 | 18 | 0
Other noninterest expenses |  |  |  |
Asset Acquisition [Line Items] |  |  |  |
Business Combination, Acquisition Related Costs | $ 545 | $ 0 | $ 794 | $ 0

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460 + Details
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