LEASE REVENUE (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lease Revenue [Line Items]
Lease income - operating leases		$ 78,040	$ 68,528	$ 225,780	$ 201,284
Variable lease income	[1]	26,544	23,472	76,283	68,793
Income from real estate operations		$ 104,584	$ 92,000	$ 302,063	$ 270,077

[1] Primarily includes tenant reimbursements for real estate taxes, insurance and common area maintenance.