Weighted Average Interest Rate for Life Policy Products (Details) - Life policy reserves:	Mar. 31, 2024	Mar. 31, 2023
Term Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.26%	5.32%
Current discount rate	5.09%	4.81%
Whole Life Insurance
Liability for Future Policy Benefit, Activity [Line Items]
Interest accretion rate	5.90%	5.94%
Current discount rate	5.40%	5.06%