FAIR VALUE - Summary of assets measured at fair value on nonrecurring basis (Details) - Fair Value, Nonrecurring - Commercial and Industrial $ in Thousands	Sep. 30, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net recorded investment	$ 4,575
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net recorded investment	0
Significant Other Observable Inputs (Level 2)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net recorded investment	0
Significant Unobservable Inputs (Level 3)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Net recorded investment	$ 4,575