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Summary of Carrying Values, Estimated Fair Values and Fair Value Measurement Levels of Financial Instruments (Detail) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Certain impaired loans | [1] | $ 32,401 | $ 42,767
Other assets | [2] | 2,862 | 1,481
Total |  | 35,263 | 44,248
Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Certain impaired loans | [1] | 0 |
Total |  | 0 |
Significant Unobservable Inputs (Level 2) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Certain impaired loans | [1] | 0 |
Total |  | 0 |
Significant Unobservable Inputs (Level 3) |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Certain impaired loans | [1] | 32,401 | 42,767
Other assets | [2] | 2,862 | 1,481
Total |  | $ 35,263 | $ 44,248
[1] | Represents the fair value of impaired loans, based on the value of the collateral.
[2] | Represents the fair value of repossessed assets, based on the appraised value of the collateral subsequent to its initial classification as repossessed assets.

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