ACCOUNTING POLICIES - Schedule of VIEs (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Variable Interest Entity
Total Assets	$ 24,672,586	$ 24,725,433
Total Liabilities	14,928,709	14,878,392
Variable Interest Entity | NHP/PMB L.P.
Variable Interest Entity
Total Assets	762,340	759,817
Total Liabilities	272,441	266,658
Variable Interest Entity | Fonds Immobilier Groupe Maurice, S.E.C.
Variable Interest Entity
Total Assets	1,922,757	1,971,410
Total Liabilities	1,184,984	1,204,619
Variable Interest Entity | Other identified VIEs
Variable Interest Entity
Total Assets	1,608,465	1,597,957
Total Liabilities	363,282	354,828
Variable Interest Entity | Tax credit VIEs
Variable Interest Entity
Total Assets	29,799	29,746
Total Liabilities	$ 4,024	$ 4,024