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Fair Value - Summary of Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
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Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items] |  |  |
Other equity investments | $ 22,061 | $ 23,776 | [1]
Loans held for sale | 69,640 | 69,534 | [1]
OREO | 0 | 195 | [1]
Level 2 [Member] |  |  |
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items] |  |  |
Other equity investments | 22,061 | 23,776 |
Fair Value, Nonrecurring [Member] |  |  |
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items] |  |  |
Other equity investments | 22,061 | 23,776 |
Collateral dependent loans | 68,612 |  |
Impaired loans - Pre-ASC 326 |  | 54,906 |
Loans held for sale | 69,640 | 69,534 |
OREO |  | 195 |
Fair Value, Nonrecurring [Member] | Level 2 [Member] |  |  |
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items] |  |  |
Other equity investments | 22,061 | 23,776 |
Loans held for sale | 69,640 | 69,534 |
Fair Value, Nonrecurring [Member] | Level 3 [Member] |  |  |
Disclosure Of Other Real Estate Owned Measured At Fair Value On A Recurring And Nonrecurring Basis Table [Line Items] |  |  |
Collateral dependent loans | $ 68,612 |  |
Impaired loans - Pre-ASC 326 |  | 54,906 |
OREO |  | $ 195 |
[1] | Derived from audited December 31, 2022 Consolidated Financial Statements.

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