INSURANCE LIABILITIES AND ANNUITY BENEFITS - Weighted-Average Durations and Interest Rates (Details)	Mar. 31, 2024	Mar. 31, 2023
Long-term care
Liability for Future Policy Benefit, by Product Segment [Line Items]
Duration (years)	12 years 4 months 24 days	13 years 2 months 12 days
Interest accretion rate	5.60%	5.50%
Current discount rate	5.20%	5.00%
Structured settlement annuities
Liability for Future Policy Benefit, by Product Segment [Line Items]
Duration (years)	10 years 9 months 18 days	11 years 2 months 12 days
Interest accretion rate	5.40%	5.40%
Current discount rate	5.20%	5.00%
Life
Liability for Future Policy Benefit, by Product Segment [Line Items]
Duration (years)	5 years 3 months 18 days	5 years 3 months 18 days
Interest accretion rate	5.20%	5.10%
Current discount rate	5.00%	4.80%