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Merger | 12 Months Ended
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Dec. 31, 2022
Business Combination and Asset Acquisition [Abstract] |
Merger | Merger Bancorp completed its merger and acquired all assets and assumed all liabilities of AMRB on August 6, 2021. The Merger expanded Bank of Marin's presence throughout the Greater Sacramento, Amador and Sonoma County Regions where AMRB had ten branches. The Merger added $898.4 million in total assets, including $297.8 million in investment securities and $419.4 million in loans, and $816.6 million in total liabilities, including $790.0 million in deposits, to Bank of Marin as of the merger date. Bancorp accounted for the Merger as a business combination under the acquisition method of accounting. The assets acquired and liabilities assumed, both tangible and intangible, were recorded at their fair values as of the merger date in accordance with ASC 805, Business Combinations. AMRB's shareholders received 0.575 shares of Bancorp's common for each share of AMRB common stock outstanding immediately prior to the Merger resulting in the issuance of 3,441,235 shares of Bancorp common stock. In addition, merger consideration included cash paid for outstanding stock options and cash paid in lieu of fractional shares, as summarized in the following table.
(in thousands) | Merger Consideration
Value of common stock consideration paid to shareholders (0.575 fixed exchange ratio, stock price $36.15) | $ | 124,401 |
Cash consideration for stock options | 63
Cash paid in lieu of fractional shares | 13
Total merger consideration | $ | 124,477 |
We recorded $42.6 million in goodwill, which represented the excess of the total merger consideration paid of $124.5 million over the fair value of the net assets acquired of $81.9 million. Goodwill mainly reflects expected value created through the combined operations of AMRB and Bancorp and is evaluated for impairment annually. Merger-related and conversion costs are recognized as incurred and continue until all systems have been converted and operational functions are fully integrated. Bancorp's pretax merger-related costs reflected in the consolidated statements of comprehensive (loss) income are summarized in the following table.
| Years ended December 31,
(in thousands) | 2022 | 2021 | 2020
Personnel and severance | $ | 393 |  | $ | 3,005 |  | $ | — |
Professional services | 67 |  | 1,976 |  | — |
Data processing | 77 |  | 1,127 |  | — |
Other expense | 321 |  | 350 |  | — |
Total merger-related and conversion costs | $ | 858 |  | $ | 6,458 |  | $ | — |

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- Definition The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -URI https://asc.fasb.org/topic&trid=2303972 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4946-128472 + Details
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