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- Definition

Additional Paid In Capital Increase Due To Purchase Of Noncontrolling Interests

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Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Non Controlling Interest

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Number Of Agencies

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Number Of Subsidiaries

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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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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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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Other Acquisitions and Joint Venture Activities - Additional Information (Details) $ in Thousands		9 Months Ended
	Apr. 01, 2018 USD ($)	Sep. 30, 2018 USD ($) Agency subsidiary	Dec. 31, 2017 USD ($)
Business Acquisition [Line Items]
Preliminary merger consideration	$ 795,412
Goodwill		$ 1,152,232	$ 392,601
Proceeds for sale of ownership interest		3,800
Reduction of APIC due to sale of ownership interests		2,700
Increase to APIC due to purchase of joint venture		7,700
Home health services
Business Acquisition [Line Items]
Goodwill		806,738	261,456
Hospice services
Business Acquisition [Line Items]
Goodwill		$ 117,208	$ 88,814
Wholly-owned subsidiaries
Business Acquisition [Line Items]
Number of subsidiaries \| subsidiary		4
Equity joint ventures
Business Acquisition [Line Items]
Preliminary merger consideration		$ 8,100
Cash paid to for acquisitions		$ 7,700
Number of subsidiaries \| subsidiary		2
Home health agencies and hospice agency
Business Acquisition [Line Items]
Preliminary merger consideration		$ 7,800
Cash paid to for acquisitions		7,500
Goodwill		8,800
Acquired nonontrolling interest		3,800
Home health agencies and hospice agency \| Trade Names
Business Acquisition [Line Items]
Indefinite-lived intangible assets		1,300
Home health agencies and hospice agency \| Certificates of need/licenses
Business Acquisition [Line Items]
Indefinite-lived intangible assets		$ 1,100
Home health agencies and hospice agency \| Home health services
Business Acquisition [Line Items]
Number of agencies \| Agency		5
Home health agencies and hospice agency \| Hospice services
Business Acquisition [Line Items]
Number of agencies \| Agency		1