IMPAIRMENT OF REAL ESTATE AND DISPOSITIONS - Dispositions (Details) $ in Millions	9 Months Ended
Sep. 30, 2023 USD ($) facility	Sep. 30, 2022 USD ($) facility
Dispositions:
Number of facilities \| facility	27	11
Consideration, net of closing costs	$ 256.2	$ 62.8
Net carrying value	332.1	67.4
Net loss on sale	(75.9)	(4.6)
Net loss	(80.3)	(63.1)
Impairment upon disposal	$ 7.1	$ 65.8

Disposal Group, Including Discontinued Operation, Assets And Liabilities, Net

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- Definition

Disposal Group, Including Discontinued Operations, Number Of Properties

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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- Definition

Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 205
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- Definition

Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
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Amount, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations.

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