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Premises and Equipment - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Property Plant And Equipment [Line Items] |  |  |
Depreciation and amortization expense charged | $ 13,000 | $ 13,400 | $ 14,100
Weighted-average lease term | 16 years |  |
Operating lease ROU assets | $ 38,800 | $ 43,100 |
Operating lease ROU assets statement of financial position extensible list | Premises and equipment, net | Premises and equipment, net |
Operating lease ROU liabilities | $ 42,957 | $ 47,500 |
Operating Lease Liability Statement Of Financial Position Extensible List | Other liabilities | Other liabilities |
Operating lease, expense | $ 4,600 | $ 5,200 | 5,800
Weighted average discount rate | 2.92% |  |
Weighted-average finance lease term | 20 years |  |
Finance lease ROU assets | $ 9,200 | $ 4,100 |
Finance lease ROU assets statement of financial position extensible list | Premises and equipment, net | Premises and equipment, net |
Finance lease ROU liabilities | $ 9,755 | $ 4,800 |
Finance lease ROU liabilities statement of financial position extensible list | Other liabilities | Other liabilities |
Weighted average finance lease discount rate | 3.42% | 3.78% |
Amortization cost related to finance lease ROU assets | $ 500 | $ 400 | 400
Interest expense related to finance lease ROU assets | $ 200 | $ 200 | $ 200
Maximum [Member] |  |  |
Property Plant And Equipment [Line Items] |  |  |
Operating lease terms | 30 years |  |
Operating lease term extensions | 10 years |  |
Finance lease terms | 25 years |  |
Finance lease term extensions | 10 years |  |
Minimum [Member] |  |  |
Property Plant And Equipment [Line Items] |  |  |
Operating lease terms | 1 year |  |
Operating lease term extensions | 5 years |  |
Annual obligation | $ 10,700 |  |
Finance lease terms | 5 years |  |
Finance lease term extensions | 5 years |  |

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