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Assets Held for Sale and Discontinued Operations - Schedule of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Discontinued Operations and Disposal Groups [Abstract]
Net revenue	$ 50,946	$ 55,236	$ 155,309	$ 169,567
Operating expenses:
Cost of service salaries and benefits	26,288	26,392	78,883	82,198
Cost of service supplies and other operating expenses	5,700	5,932	17,637	18,126
General and administrative expenses	11,007	11,454	33,451	34,242
Depreciation and amortization		6,506	7,262	18,992
Transaction costs	1,600		3,000
Loss on classification as held for sale			388,002
Total operating expenses	44,595	50,284	528,235	153,558
Income (loss) from operations	6,351	4,952	(372,926)	16,009
Non-operating expenses, net	(15)	(221)	(47)	(241)
Income (loss) before income taxes	6,336	4,731	(372,973)	15,768
Income tax (provision) benefit	(2,006)	(1,323)	49,017	(4,302)
Net income (loss)	$ 4,330	$ 3,408	$ (323,956)	$ 11,466

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