Fair Value - Summary of Quantitative Information about Level 3 Fair Value Measurements of Assets Measured on a Nonrecurring Basis (Detail) - Fair Value, Nonrecurring [Member] - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Selling Costs [Member] \| Appraised Value Technique [Member]
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
Collateral dependent loans	$ 3,916	$ 6,954
Valuation Technique	Discounted appraised value technique	Discounted appraised value technique
Unobservable input	Selling Costs	Selling Costs
Selling Costs [Member] \| Sales Price Technique [Member]
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
OREO		$ 279
Valuation Technique		Discounted sales price technique
Unobservable Input		Selling Costs
Range		7.00%
Selling Costs [Member] \| Maximum [Member] \| Appraised Value Technique [Member]
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
Range	7.00%	15.00%
Selling Costs [Member] \| Minimum [Member] \| Appraised Value Technique [Member]
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
Range	5.00%	7.00%
Discount Rate [Member] \| Probability Weighted Expected Return Technique [Member]
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
Other equity investments	$ 3,006	$ 3,006
Valuation technique	Probability weighted expected return technique	Probability weighted expected return technique
Unobservable input	Discount Rate	Discount Rate
Range	20.00%	20.00%
Discount Rate [Member] \| Discounted Cash Flows Technique [Member]
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
Range	20.00%
Collateral in nonperforming loan converted to equity	$ 222
Valuation technique	Discounted cash flows technique
Unobservable Input	Discount Rate