Fair Value - Summary of Quantitative Information about Level 3 Fair Value Measurements of Assets Measured on a Nonrecurring Basis (Detail) - Fair Value, Nonrecurring [Member] - Selling Costs [Member] - Appraised Value Technique Member] - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2024	Dec. 31, 2023
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
Collateral dependent loans	$ 45,423	$ 56,068
Valuation Technique	Discounted appraised value technique	Discounted appraised value technique
Unobservable Input	Selling Costs	Selling Costs
Maximum [Member]
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
Range	15.00%	15.00%
Minimum [Member]
Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]
Range	7.00%	7.00%

Fair Value - Summary of Quantitative Information about Level 3 Fair Value Measurements of Assets Measured on a Nonrecurring Basis (Detail) - Fair Value, Nonrecurring [Member] - Selling Costs [Member] - Appraised Value Technique Member] - USD ($)
$ in Thousands

3 Months Ended

12 Months Ended

Mar. 31, 2024

Dec. 31, 2023

Disclosure Of Other Real Estate Owned Measured On Nonrecurring Vasis Valuation Techniques [Line Items]

Collateral dependent loans

$ 45,423

$ 56,068

Valuation Technique

Discounted appraised value technique

Unobservable Input

Selling Costs