LEASE REVENUE LEASE REVENUE (Details) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Lease Revenue [Line Items]
Operating Lease, Lease Income, Lease Payments		$ 62,901,000		$ 183,271,000
Operating Lease, Variable Lease Income	[1]	21,012,000		61,062,000
Lease Income		83,913,000		244,333,000
Operating Leases, Future Minimum Payments Receivable, Current		62,995,000		62,995,000		$ 226,330,000
Operating Leases, Future Minimum Payments Receivable, in Two Years		242,199,000		242,199,000		195,850,000
Operating Leases, Future Minimum Payments Receivable, in Three Years		200,587,000		200,587,000		151,564,000
Operating Leases, Future Minimum Payments Receivable, in Four Years		156,626,000		156,626,000		112,007,000
Operating Leases, Future Minimum Payments Receivable, in Five Years		120,445,000		120,445,000		82,262,000
Operating Leases, Future Minimum Payments Receivable, Thereafter		249,075,000		249,075,000		163,499,000
Total minimum receipts		1,031,927,000		1,031,927,000		$ 931,512,000
Indirect leasing costs		$ 110,000	$ 0	$ 306,000	$ 0

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