Goodwill and Intangibles - Schedule of Changes in Recorded Goodwill by Reporting Unit (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Goodwill [Roll Forward]
Balance as of December 31, 2020	$ 1,259,147
Disposals	(20)
Balance as of March 31, 2021	1,259,127
Intangible assets:
Balance as of December 31, 2020	315,355
Amortization	(304)	$ (300)
Disposals	(519)
Balance as of March 31, 2021	314,532
Home health reporting unit
Goodwill [Roll Forward]
Balance as of December 31, 2020	884,000
Disposals	(20)
Balance as of March 31, 2021	883,980
Intangible assets:
Balance as of December 31, 2020	226,004
Amortization	(117)
Disposals	(519)
Balance as of March 31, 2021	225,368
Hospice reporting unit
Goodwill [Roll Forward]
Balance as of December 31, 2020	151,742
Disposals	0
Balance as of March 31, 2021	151,742
Intangible assets:
Balance as of December 31, 2020	44,732
Amortization	(38)
Disposals	0
Balance as of March 31, 2021	44,694
Home and community-based services reporting  unit
Goodwill [Roll Forward]
Balance as of December 31, 2020	166,773
Disposals	0
Balance as of March 31, 2021	166,773
Intangible assets:
Balance as of December 31, 2020	24,208
Amortization	(2)
Disposals	0
Balance as of March 31, 2021	24,206
Facility-based reporting  unit
Goodwill [Roll Forward]
Balance as of December 31, 2020	15,770
Disposals	0
Balance as of March 31, 2021	15,770
Intangible assets:
Balance as of December 31, 2020	5,311
Amortization	(2)
Disposals	0
Balance as of March 31, 2021	5,309
HCI reporting unit
Goodwill [Roll Forward]
Balance as of December 31, 2020	40,862
Disposals	0
Balance as of March 31, 2021	40,862
Intangible assets:
Balance as of December 31, 2020	15,100
Amortization	(145)
Disposals	0
Balance as of March 31, 2021	$ 14,955