Goodwill and Intangibles - Schedule of Changes in Recorded Goodwill by Reporting Unit (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Goodwill [Roll Forward]
Balance as of December 31, 2019	$ 1,219,972
Acquisitions	9,954
Noncontrolling interests	4,660
Adjustments and disposals	(395)
Balance as of March 31, 2020	1,234,191
Intangible assets:
Balance as of December 31, 2019	305,556
Acquisitions	5,630
Amortization	(316)	$ (400)
Balance as of March 31, 2020	310,870
Home health reporting unit
Goodwill [Roll Forward]
Balance as of December 31, 2019	867,924
Acquisitions	7,254
Noncontrolling interests	2,863
Adjustments and disposals	(79)
Balance as of March 31, 2020	877,962
Intangible assets:
Balance as of December 31, 2019	219,872
Acquisitions	4,700
Amortization	(137)
Balance as of March 31, 2020	224,435
Hospice reporting unit
Goodwill [Roll Forward]
Balance as of December 31, 2019	128,875
Acquisitions	2,700
Noncontrolling interests	1,797
Adjustments and disposals	(316)
Balance as of March 31, 2020	133,056
Intangible assets:
Balance as of December 31, 2019	40,590
Acquisitions	930
Amortization	(23)
Balance as of March 31, 2020	41,497
Home and community-based services reporting unit
Goodwill [Roll Forward]
Balance as of December 31, 2019	166,629
Acquisitions	0
Noncontrolling interests	0
Adjustments and disposals	0
Balance as of March 31, 2020	166,629
Intangible assets:
Balance as of December 31, 2019	24,096
Acquisitions	0
Amortization	(10)
Balance as of March 31, 2020	24,086
Facility-based reporting unit
Goodwill [Roll Forward]
Balance as of December 31, 2019	15,682
Acquisitions	0
Noncontrolling interests	0
Adjustments and disposals	0
Balance as of March 31, 2020	15,682
Intangible assets:
Balance as of December 31, 2019	5,317
Acquisitions	0
Amortization	(1)
Balance as of March 31, 2020	5,316
HCI reporting unit
Goodwill [Roll Forward]
Balance as of December 31, 2019	40,862
Acquisitions	0
Noncontrolling interests	0
Adjustments and disposals	0
Balance as of March 31, 2020	40,862
Intangible assets:
Balance as of December 31, 2019	15,681
Acquisitions	0
Amortization	(145)
Balance as of March 31, 2020	$ 15,536

Intangible Assets [Roll Forward]

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized, net of deferred tax adjustments.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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Net Increase or Decrease in balance of noncontrolling interest in the subsidiary during the reporting period.

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