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Leases - Schedule of Components of Lease Expense (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Occupancy and Equipment |  |  |
Schedule Of Operating Lease Expense [Line Items] |  |  |
Operating lease cost | $ 35,894 | $ 36,894 | $ 41,442
Amortization on ROU assets | 1,305 | 753 | 146
Occupancy and Equipment | Disposal Group, Disposed of by Sale, Not Discontinued Operations | Insurance1 |  |  |
Schedule Of Operating Lease Expense [Line Items] |  |  |
Operating lease cost |  |  | 3,500
Interest Expense |  |  |
Schedule Of Operating Lease Expense [Line Items] |  |  |
Interest on lease liabilities | $ 219 | $ 116 | $ 21

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