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Derivative Financial Instruments and Hedging Activities - Summary Notional and Fair Value of Interest Rate Swaps (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Derivative [Line Items] |  |
Notional Amount | $ 9,000 | $ 11,700
Interest Rate Swap Agreement [Member] | Receive Fixed/Pay Variable Swaps [Member] |  |
Derivative [Line Items] |  |
Notional Amount | 1,974 | 2,178
Fair Value | (95) | (95)
Interest Rate Swap Agreement [Member] | Pay Fixed/Receive Variable Swaps [Member] |  |
Derivative [Line Items] |  |
Notional Amount | 1,974 | 2,178
Fair Value | $ 95 | $ 95

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