LEASES (Components of Lease Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Lessee, Lease, Description
Operating lease costs	$ 4,711	$ 4,636	$ 4,678
Variable lease costs	470	392	694
Total lease costs	5,181	5,028	5,372
Ground Lease
Lessee, Lease, Description
Operating lease costs	4,228	4,153	4,195
Variable lease costs	172	139	386
Total lease costs	4,400	4,292	4,581
Office Lease
Lessee, Lease, Description
Operating lease costs	483	483	483
Variable lease costs	298	253	308
Total lease costs	$ 781	$ 736	$ 791