NONCONTROLLING INTERESTS - Narrative (Details) - IRET - 71 France, LLC $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($)
Noncontrolling Interest [Line Items]
Noncontrolling interest, ownership percentage	47.40%
Payments to acquire additional interests	$ 12.2

Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3291-108585

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