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Derivatives - Summary of Interest Rate Swap Transactions (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Derivatives Fair Value [Line Items] |  |
Derivative Asset | $ 11,072 | $ 21,700
Accrued Liabilities and Other Liabilities | 11,072 | 21,764
Long [Member] | Financial Institutions [Member] |  |
Derivatives Fair Value [Line Items] |  |
Counterparty Positions With Financial Institutions In A Liability Position Notional Amount | 173,490 | 244,748
Fair Value Of Counterparty Positions With Financial Institutions In A Liability Position | 11,072 | 21,764
Short [Member] | Financial Institutions [Member] |  |
Derivatives Fair Value [Line Items] |  |
Counterparty Positions With Financial Institutions In An Asset Position Notional Amount | 71,328 |
Fair Value Of Counterparty Positions With Financial Institutions In An Asset Position | (1,628) |
Interest Rate Swap [Member] | Long [Member] |  |
Derivatives Fair Value [Line Items] |  |
Interest Rate Swaps With Loan Customers In An Asset Position Notional Amount | 173,490 | 244,748
Fair Value Of Interest Rate Swaps With Loan Customers In An Asset Position | 11,072 | $ 21,700
Interest Rate Swap [Member] | Short [Member] |  |
Derivatives Fair Value [Line Items] |  |
Interest Rate Swaps With Loan Customers In A Liability Position Notional Amount | 71,328 |
Fair Value Of Interest Rate Swaps With Loan Customers In A Liability Position | $ 1,628 |

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