Goodwill and Intangibles - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net carrying amount	$ 106,626	$ 102,006
Amortization of Intangible Assets	600
Home health services
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net carrying amount	72,200
Hospice Services
Indefinite-lived Intangible Assets [Line Items]
Intangible assets, net carrying amount	25,900
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	$ 1,100