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v3.23.1

Recent Developments Including Mergers and Acquisitions - Additional Information (Detail) $ in Thousands | Feb. 08, 2022 USD ($) Location | Mar. 31, 2023 USD ($) | Mar. 30, 2023 USD ($) | Dec. 31, 2022 USD ($) | Jun. 17, 2021 USD ($)
--- | --- | --- | --- | --- | ---
Business Combination Separately Recognized Transactions [Line Items] |  |  |  |  |
Total assets |  | $ 12,332,105 |  | $ 12,387,863 |
Loans held for investment (net of unearned interest) |  | 7,118,608 |  | 6,943,563 |
Deposits |  | 10,610,103 |  | 10,974,228 |
Goodwill |  | $ 182,055 |  | $ 182,055 |
Federal Home Loan Bank [Member] |  |  |  |  |
Business Combination Separately Recognized Transactions [Line Items] |  |  |  |  |
Line of credit |  |  | $ 200,000 |  |
Subordinated Notes due 2036 [Member] | Private Placement [Member] |  |  |  |  |
Business Combination Separately Recognized Transactions [Line Items] |  |  |  |  |
Aggregate principal amount |  |  |  |  | $ 60,000
Fixed-to-floating rate |  |  |  |  | 3.50%
Worthington [Member] |  |  |  |  |
Business Combination Separately Recognized Transactions [Line Items] |  |  |  |  |
Purchase price | $ 77,700 |  |  |  |
Total assets | 478,000 |  |  |  |
Loans held for investment (net of unearned interest) | 257,000 |  |  |  |
Deposits | 430,000 |  |  |  |
Intangibles assets, net | 5,900 |  |  |  |
Goodwill | $ 32,100 |  |  |  |
Worthington [Member] | Arlington, Texas [Member] |  |  |  |  |
Business Combination Separately Recognized Transactions [Line Items] |  |  |  |  |
Number of banking locations | Location | 1 |  |  |  |
Worthington [Member] | Colleyville, Texas [Member] |  |  |  |  |
Business Combination Separately Recognized Transactions [Line Items] |  |  |  |  |
Number of banking locations | Location | 1 |  |  |  |
Worthington [Member] | Fort Worth, Texas [Member] |  |  |  |  |
Business Combination Separately Recognized Transactions [Line Items] |  |  |  |  |
Number of banking locations | Location | 2 |  |  |  |

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