BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Loan Portfolio Credit Quality Indicators (Details)	Dec. 31, 2023	Dec. 31, 2022
600 or Less
Financing Receivable, Credit Quality Indicator [Line Items]
Percentage of loan portfolio per FICO score (in percentage)	6.50%	6.90%
Between 600 and 700
Financing Receivable, Credit Quality Indicator [Line Items]
Percentage of loan portfolio per FICO score (in percentage)	73.50%	75.40%
700 or Greater
Financing Receivable, Credit Quality Indicator [Line Items]
Percentage of loan portfolio per FICO score (in percentage)	11.20%	13.40%
No Score Identified
Financing Receivable, Credit Quality Indicator [Line Items]
Percentage of loan portfolio per FICO score (in percentage)	8.80%	4.30%