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DEBT (Schedule of Current Unsecured Senior Notes Outstanding) (Details) - Senior Notes	Sep. 30, 2025 USD ($)
2025 Series B Notes
Line of Credit Facility [Line Items]
Principal amount	$ 75,000,000
Coupon Rate	4.04%
2026 Senior Notes
Line of Credit Facility [Line Items]
Principal amount	$ 75,000,000
Coupon Rate	3.72%
2027 Series B Notes
Line of Credit Facility [Line Items]
Principal amount	$ 75,000,000
Coupon Rate	3.72%
2029 Series C Notes
Line of Credit Facility [Line Items]
Principal amount	$ 100,000,000
Coupon Rate	4.19%
MetLife 2030 Series D Notes
Line of Credit Facility [Line Items]
Principal amount	$ 125,000,000
Coupon Rate	2.50%
Prudential 2030 Series D Notes
Line of Credit Facility [Line Items]
Principal amount	$ 75,000,000
Coupon Rate	2.50%

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Face (par) amount of debt instrument at time of issuance.

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