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DISCONTINUED OPERATIONS - Narrative (Details) $ in Thousands			3 Months Ended		9 Months Ended
	Aug. 30, 2019 USD ($) facility	Dec. 01, 2018 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	May 22, 2019 bed facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net loss contributed by discontinued operations			$ 374	$ 3,689	$ 1,004	$ 7,449
Loss from discontinued operations			(374)	(2,956)	(1,004)	(6,716)
Kentucky Properties \| Discontinued Operations, Disposed
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of nursing center facilities terminated \| facility							10
Number of skilled nursing beds terminated \| bed							885
Pretax gain on transaction	$ 733
Revenues contributed from centers				11,812		46,019
Net loss contributed by discontinued operations			$ 374
Loss from discontinued operations				$ (2,956)	$ (1,004)	$ (6,716)
Kentucky Properties \| Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of nursing center facilities terminated \| facility	10
Kentucky Properties
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of assets		$ 18,700
Carrying value of centers		13,331
Gain on disposition of assets		$ 4,825