Other Intangible Assets - Other Identifiable Intangible Assets and Related Accumulated Amortization (Detail) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross Carrying Amount	$ 3,231	$ 3,231
Intangible assets not subject to amortization, Gross Carrying Amount	89,052	90,357
Total	92,283	93,588
Intangible assets subject to amortization, Accumulated Amortization	(3,231)	(3,231)
Intangible assets not subject to amortization, Accumulated Amortization	0	0
Total	(3,231)	(3,231)
Licenses and Accreditations [Member]
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]
Intangible assets not subject to amortization, Gross Carrying Amount	12,429	12,455
Intangible assets not subject to amortization, Accumulated Amortization	0	0
Trade Names [Member]
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]
Intangible assets not subject to amortization, Gross Carrying Amount	59,532	60,831
Intangible assets not subject to amortization, Accumulated Amortization	0	0
Certificates of Need [Member]
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]
Intangible assets not subject to amortization, Gross Carrying Amount	17,091	17,071
Intangible assets not subject to amortization, Accumulated Amortization	0	0
Contract Intangible Assets [Member]
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross Carrying Amount	2,100	2,100
Intangible assets subject to amortization, Accumulated Amortization	(2,100)	(2,100)
Non-Compete Agreements [Member]
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]
Intangible assets subject to amortization, Gross Carrying Amount	1,131	1,131
Intangible assets subject to amortization, Accumulated Amortization	$ (1,131)	$ (1,131)