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Business Combinations - Schedule of Fair Value of Consideration Transferred, Identifiable Net Assets Acquired and Resulting Goodwill (Detail) - USD ($) $ in Thousands | Mar. 25, 2022 | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Liabilities assumed: |  |  |
Goodwill recognized |  | $ 304,442 | $ 304,442
Valley Republic Bancorp |  |  |
Fair value of consideration transferred: |  |  |
Fair value of shares issued | $ 173,585 |  |
Cash consideration | 431 |  |
Total fair value of consideration transferred | 174,016 |  |
Assets acquired: |  |  |
Cash and cash equivalents | 427,314 |  |
Securities available for sale | 109,716 |  |
Loans and leases | 771,353 |  |
Premises and equipment | 4,658 |  |
Cash value of life insurance | 13,609 |  |
Core deposit intangible | 10,635 |  |
Other assets | 29,744 |  |
Total assets acquired | 1,367,029 |  |
Liabilities assumed: |  |  |
Deposits | (1,215,479) |  |
Subordinated debt | (47,236) |  |
SERP liability | (3,352) |  |
Other liabilities | (10,516) |  |
Total liabilities assumed | (1,276,583) |  |
Total net assets acquired | 90,446 |  |
Goodwill recognized | $ 83,570 |  |

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