Acquisitions, Divestiture and Joint Venture Activities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill	$ 1,259,726	$ 1,259,147
A 2020 Acquisitions
Business Acquisition [Line Items]
Other assets and (liabilities), net	9
Total identifiable assets	164
Noncontrolling interest	113
Goodwill	599
Goodwill noncontrolling interest portion	78
Trade names \| A 2020 Acquisitions
Business Acquisition [Line Items]
Indefinite-lived intangible assets	26
Certificates of need/licenses \| A 2020 Acquisitions
Business Acquisition [Line Items]
Indefinite-lived intangible assets	$ 129

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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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This element represents the fair value of the noncontrolling interest in the acquiree at the acquisition date.

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Amount of assets acquired at the acquisition date.

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Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

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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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