DEBT (Schedule of Current Unsecured Senior Notes Outstanding) (Details) - Senior Notes	Jun. 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%