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Amount of direct costs of the business combination including legal, accounting, and other costs incurred to consummate the business acquisition.

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BUSINESS DEVELOPMENTS AND OTHER SIGNIFICANT TRANSACTIONS - Narrative (Details)		3 Months Ended				6 Months Ended		12 Months Ended
	Jul. 01, 2017 USD ($) bed	Jun. 30, 2018 USD ($) bed	Mar. 31, 2018 facility	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jun. 30, 2018 USD ($) bed	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Business Acquisition [Line Items]
Number of licensed nursing beds \| bed		8,456				8,456
Number of skilled nursing facilities classified as held for sale \| facility			3
Assets held for sale		$ 13,269,000				$ 13,269,000		$ 0
Cash termination payment		13,725,000		$ 13,763,000		27,438,000	$ 27,506,000
Gain on sale of investment in unconsolidated affiliate		$ 308,000		0		308,000	733,000
Selma Nursing Centers
Business Acquisition [Line Items]
Number of licensed nursing beds \| bed	103
Purchase Price	$ 8,750,000
Business acquisition, acquisition expenses								140,000
Gain on bargain purchase	$ 925,000							925,000
Unnamed pharmacy joint venture
Business Acquisition [Line Items]
Gain on sale of investment in unconsolidated affiliate					$ 1,366,000	$ 308,000	733,000
Trend Health and Rehab of Carthage, LLC (Trend Health)
Business Acquisition [Line Items]
Cash termination payment								$ 250,000
Mortgage term loan \| Amended and restated credit agreement \| Mortgage loan \| Selma Nursing Centers
Business Acquisition [Line Items]
Increase to credit facility limit				$ 7,500,000			$ 7,500,000