LOANS AND ALLOWANCE FOR CREDIT LOSSES - Modifications (Details) - Commercial Mortgages - Commercial mortgages, other $ in Thousands	3 Months Ended
Mar. 31, 2023 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 277
% of Loan Class	0.03%
Weighted-average interest rate reduction (%)	0.00%
Weighted-average term extension (in months)	60 months
Weighted-average payment delay (in months)	0 months
Principal Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 0
Principal Reduction	0
Interest Rate Reduction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Term Extension
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	277
Payment Delay
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	0
Combination
Financing Receivable, Troubled Debt Restructuring [Line Items]
Amortized cost basis	$ 0

Financing Receivable, Excluding Accrued Interest, Modified in Period, Amount

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- Definition

Financing Receivable, Excluding Accrued Interest, Modified in Period, Payment Delay

+ References

No definition available.

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Financing Receivable, Excluding Accrued Interest, Modified in Period, Term Extension

+ References

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- Definition

Financing Receivable, Excluding Accrued Interest, Modified in Period, to Total Financing Receivables, Percentage

+ References

No definition available.

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- Definition

Accumulated amortized cost excluding accrued interest, of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Subparagraph (a)(1)
-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
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- Definition

Percentage of decrease in weighted average contractual interest rate of financing receivable modified for debtor experiencing financial difficulty.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 12A
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