Goodwill and Intangibles - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net carrying amount	$ 114,966		$ 102,006
Amortization of Intangible Assets	1,200	$ 1,200
Home health services
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net carrying amount	77,100
Hospice Services
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net carrying amount	29,500
Community-based services
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net carrying amount	7,400
Facility-based services
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net carrying amount	$ 1,000