ACCOUNTING POLICIES - Schedule of VIEs (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Variable Interest Entity
Total Assets	$ 23,994,168	$ 24,157,840
Total Liabilities	13,669,680	13,671,513
Variable Interest Entity | NHP/PMB L.P.
Variable Interest Entity
Total Assets	746,751	741,890
Total Liabilities	253,370	252,518
Variable Interest Entity | Fonds Immobilier Groupe Maurice, S.E.C.
Variable Interest Entity
Total Assets	1,963,391	1,957,075
Total Liabilities	1,186,910	1,170,928
Variable Interest Entity | Other identified VIEs
Variable Interest Entity
Total Assets	1,688,060	1,699,949
Total Liabilities	326,910	333,185
Variable Interest Entity | Tax credit VIEs
Variable Interest Entity
Total Assets	123,285	128,240
Total Liabilities	$ 15,707	$ 16,767