INTANGIBLE ASSETS AND LIABILITIES - Amortization (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
INTANGIBLE ASSETS AND LIABILITIES
Amortization Expense	$ 2,165	$ 1,303	$ 4,291	$ 2,498
Accretion to Properties Revenue	(69)	(50)	(170)	(91)
Net Amortization of Intangible Assets and Liabilities	$ 2,096	$ 1,253	$ 4,121	$ 2,407

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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