BUSINESS SEGMENTS - INCOME FROM OPERATIONS (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Dec. 31, 2019	Oct. 01, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting [Abstract]
Segment Adjusted EBITDAR from Operations			$ 62,107	$ 57,466	$ 52,594
Less: Depreciation and amortization			3,810	2,964	2,544
Rent—cost of services			34,975
Rent—cost of services				31,199	31,304
Less: Costs at start-up operations			483	129	478
Share-based compensation expense	$ 3,382	$ 1,395	3,382	2,382	2,298
Acquisition related costs			665	0	0
Spin-off related transaction costs			13,219	756	0
Transaction services costs			532	0	0
Operating results of closed operations			0	0	728
Add: net income attributable to noncontrolling interests			629	595	160
Income from operations			$ 5,670	$ 20,631	$ 15,402

Acquisition-Related Costs, Not Capitalized

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Income (Loss) From Continuing Operations Before Interest, Taxes, Depreciation And Amortization, Rent Costs, Acquisition Costs And Stock-based Compensation

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Spinoff, Transaction Costs

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Start-Up Activities, Costs

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

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

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Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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The net result for the period of deducting operating expenses from operating revenues.

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Amount of operating lease expense. Excludes sublease income.

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