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Derivative Financial Instruments - Schedule of Notional Amounts and Estimated Fair Values of Interest Rate Derivative Contracts Outstanding (Detail) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022
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Designated as Hedging Instrument [Member] | Financial institution counterparties Loan/lease interest rate swaps assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward Contracts – Assets Notional Amount | $ 0 | $ 1,614
Estimated Fair Value | 0 | 19
Non Designated as Hedging Instrument [Member] | Financial institution counterparties Loan/lease interest rate swaps assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward Contracts – Assets Notional Amount | 1,162,694 | 1,165,812
Estimated Fair Value | 78,404 | 70,416
Non Designated as Hedging Instrument [Member] | Financial institution counterparties Loan/lease interest rate swaps liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward Contracts – Liability Notional Amount | 72,833 | 78,798
Estimated Fair Value | (1,332) | (1,102)
Non Designated as Hedging Instrument [Member] | Financial institution counterparties Loan/lease interest-rate caps assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward Contracts – Assets Notional Amount | 229,804 | 246,442
Estimated Fair Value | 14,557 | 15,256
Non Designated as Hedging Instrument [Member] | Customer counterparties Loan/lease interest rate swaps assets [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward Contracts – Assets Notional Amount | 78,789 | 53,570
Estimated Fair Value | 1,401 | 1,102
Non Designated as Hedging Instrument [Member] | Customer counterparties Loan/lease interest rate swaps liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward Contracts – Liability Notional Amount | 1,156,738 | 1,175,563
Estimated Fair Value | (78,402) | (79,175)
Non Designated as Hedging Instrument [Member] | Customer counterparties Loan/lease interest rate caps liabilities [Member] |  |
Derivatives, Fair Value [Line Items] |  |
Forward Contracts – Liability Notional Amount | 229,804 | 246,442
Estimated Fair Value | $ (14,557) | $ (15,256)

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