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Redeemable Noncontrolling Interests Redeemable Noncontrolling Interests - Textuals (Details) - USD ($) $ in Millions			1 Months Ended			12 Months Ended
	Feb. 18, 2020	Feb. 21, 2018	Jan. 31, 2020	Sep. 30, 2019	Jul. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Feb. 20, 2020	Dec. 31, 2014
Noncontrolling Interest [Line Items]
Redeemable noncontrolling interests						$ 239.6	$ 261.7
Purchase of redeemable noncontrolling interests		5.60%			5.60%
Payments to settle the acquisition of Holdings common stock		$ 65.0		$ 163.0		162.9	$ 65.1	$ 0.0
EHHI
Noncontrolling Interest [Line Items]
Value of outstanding shares of Holdings						$ 208.0
Home Health and Hospice Segment | EHHI
Noncontrolling Interest [Line Items]
Redeemable noncontrolling interest, equity, acquired percent										83.30%
Redeemable noncontrolling interests										$ 64.0
Subsidiary's common stock held by subsidiary 's management, Percent										16.70%
Subsequent Event
Noncontrolling Interest [Line Items]
Purchase of redeemable noncontrolling interests			4.30%
Payments to settle the acquisition of Holdings common stock	$ 162.0
Delivering EHC shares to management investors (in shares)									561,000
Shares to be issued to the management investors pursuant to the exchange agreements represents (in percent)									0.60%
Subsequent Event | EHHI
Noncontrolling Interest [Line Items]
Value of outstanding shares of Holdings	$ 46.0

X

- Definition

Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests), percent.

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Redeemable Noncontrolling Interest, Equity, Acquired Percent

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The amount of subsidiary's common stock held by subsidiary 's management, Percent

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Temporary Equity, Shares to Management Investors Exchange Agreements Percentages

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The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

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As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity.

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Fair value of noncontrolling interests which are redeemable by the parent entity and classified as other equity.

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The number of securities classified as temporary equity that have been sold (or granted) to the entity's shareholders. Securities issued include securities outstanding and securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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