Goodwill and Intangibles - Schedule of Changes in Recorded Goodwill by Reporting Unit (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2016 USD ($)
Goodwill [Roll Forward]
Balance at beginning of period	$ 290,694
Goodwill from acquisitions	6,260
Goodwill related to noncontrolling interests	479
Other	273
Balance at end of period	297,160
Home health reporting unit [Member]
Goodwill [Roll Forward]
Balance at beginning of period	202,995
Goodwill from acquisitions	1,250
Goodwill related to noncontrolling interests	123
Balance at end of period	204,368
Hospice reporting unit
Goodwill [Roll Forward]
Balance at beginning of period	58,136
Goodwill from acquisitions	5,010
Goodwill related to noncontrolling interests	356
Other	273
Balance at end of period	63,229
Community-based reporting unit
Goodwill [Roll Forward]
Balance at beginning of period	17,972
Goodwill from acquisitions	0
Goodwill related to noncontrolling interests	0
Balance at end of period	17,972
Facility-based reporting unit
Goodwill [Roll Forward]
Balance at beginning of period	11,591
Goodwill from acquisitions	0
Goodwill related to noncontrolling interests	0
Balance at end of period	$ 11,591