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Fair Value Measurement - Additional Information (Detail) - Non-Recoverable Rate - Level 3 - Appraisal value	Sep. 30, 2020	Dec. 31, 2019
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	0.00%	0.00%
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	39.00%	50.00%
Weighted average
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans held for investment, measurement input	3.00%	6.00%

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- Definition

Loans held for investment, measurement input

+ References

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- Definition

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+ References

No definition available.

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