DEFERRED COSTS - Deferred Costs (Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred Costs [Line Items]
Leasing costs, Total Cost	$ 143,895	$ 139,207
Total Cost	150,194	145,506
Leasing costs, Accumulated Amortization	(57,445)	(55,656)
Total, Accumulated Amortization	(63,332)	(60,650)
Leasing costs, Deferred Costs, net	86,450	83,551
Deferred Costs	86,862	84,856
Financing costs - Unsecured Credit Facility
Deferred Costs [Line Items]
Financing costs, Total Cost	6,299	6,299
Financing costs, Accumulated Amortization	(5,887)	(4,994)
Financing costs, Deferred Costs, net	$ 412	$ 1,305