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Business Combinations - Schedule of Fair Value of Consideration Transferred, Identifiable Net Assets Acquired and Resulting Goodwill (Detail) - USD ($) $ in Thousands |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2022 | Mar. 25, 2022 | Dec. 31, 2022 | Dec. 31, 2021
Liabilities assumed: |  |  |  |
Goodwill recognized | $ 304,442 |  | $ 304,442 | $ 220,872
Valley Republic Bancorp |  |  |  |
Business Combination, Consideration Transferred [Abstract] |  |  |  |
Fair value of shares issued | 173,585 | $ 173,585 |  |
Fair value of shares issued, Adjustments |  |  | 0 |
Cash consideration | 431 | 431 |  |
Cash consideration, Adjustments |  |  | 0 |
Total fair value of consideration transferred | 174,016 | 174,016 |  |
Total fair value of consideration transferred, Adjustments |  |  | 0 |
Assets acquired: |  |  |  |
Cash and cash equivalents | 427,314 | 427,314 | 427,314 |
Cash and cash equivalents, Adjustments |  |  | 0 |
Securities available for sale | 109,716 | 109,716 | 109,716 |
Securities available for sale, Adjustments |  |  | 0 |
Loans and leases | 771,353 | 771,353 | 771,353 |
Loans and leases, Adjustments |  |  | 0 |
Premises and equipment | 4,658 | 4,658 | 4,658 |
Premises and equipment, Adjustments |  |  | 0 |
Cash value of life insurance | 13,609 | 13,609 | 13,609 |
Cash value of life insurance, Adjustments |  |  | 0 |
Core deposit intangible | 10,635 | 10,635 | 10,635 |
Core deposit intangible, Adjustments |  |  | 0 |
Other assets | 29,744 | 26,244 | 29,744 |
Other assets, Adjustments |  |  | 3,500 |
Total assets acquired | 1,367,029 | 1,363,529 | 1,367,029 |
Total assets acquired, Adjustments |  |  | 3,500 |
Liabilities assumed: |  |  |  |
Deposits | (1,215,479) | (1,215,479) | (1,215,479) |
Deposits, Adjustments |  |  | 0 |
Subordinated debt | (47,236) | (47,236) | (47,236) |
Subordinated Debt, Adjustments |  |  | 0 |
SERP liability | (3,352) | (3,352) | (3,352) |
SERP liability, Adjustments |  |  | 0 |
Other liabilities | (10,516) | (10,516) | (10,516) |
Other liabilities, Adjustments |  |  | 0 |
Total liabilities assumed | (1,276,583) | (1,276,583) | (1,276,583) |
Total liabilities assumed, Adjustments |  |  | 0 |
Total net assets acquired | 90,446 | 86,946 | 90,446 |
Total net assets acquired, Adjustments |  |  | 0 |
Goodwill recognized | $ 83,570 | $ 87,070 | 83,570 |
Goodwill recognized, Adjustments |  |  | $ (3,500) |

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- Definition Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=128092470&loc=d3e4845-128472 + Details
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