Fair Value Measurements and Disclosure - Summary of Quantitative Information with Regards to Level 3 Fair Value Measurements (Detail) - Fair Value, Inputs, Level 3 [Member] $ in Thousands	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure	$ 1,483,203	$ 1,347,137
Measurement Input Discount Rate Adjustment [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable Measurement Input	0
Measurement Input Discount Rate Adjustment [Member] | Impaired Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable Measurement Input		6
Measurement Input Discount Rate Adjustment [Member] | Collateral dependent loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable Measurement Input	0
Measurement Input Discount Rate Adjustment [Member] | Valuation Technique Collateral [Member] | Weighted Average [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure	$ 33
Loans Receivable Measurement Input	0
Measurement Input Discount Rate Adjustment [Member] | Valuation Technique Collateral [Member] | Weighted Average [Member] | Impaired Loans [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure		$ 30
Loans Receivable Measurement Input		(6)
Measurement Input Discount Rate Adjustment [Member] | Valuation Technique Collateral [Member] | Weighted Average [Member] | Collateral dependent loan [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Loans Receivable, Fair Value Disclosure	$ 4,485
Loans Receivable Measurement Input	0