LEASES - Lessee Future Minimum Payments (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2022 USD ($) community	Dec. 31, 2021 USD ($)
Lease expense:
Number of communities subject to ground leases | community	6
Operating leases existence of option to extend	true
Operating lease right-of-use assets	$ 195,755	$ 197,463
Weighted average remaining lease term	42 years 10 months 24 days	43 years 2 months 12 days
Weighted average discount rate	5.00%	5.00%
Future minimum lease payments
Total operating lease liabilities (discounted)	$ 190,881	$ 192,488
LAND
Future minimum lease payments
2022	6,220
2023	12,442
2024	12,442
2025	12,442
2026	12,442
Thereafter	430,337
Total future minimum lease payments (undiscounted)	486,325
Difference between future undiscounted cash flows and discounted cash flows	(295,444)
Total operating lease liabilities (discounted)	$ 190,881