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Business Combinations - Net Cash Paid for Acquisitions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Acquisition [Line Items]
Net cash paid for acquisition			$ 13.7	$ 135.8
Home Health and Hospice Segment [Member] | Tidewater and Care Resource Group [Member]
Business Acquisition [Line Items]
Fair value of assets acquired	$ 0.0	$ 41.9	3.2	42.0
Goodwill	0.0	101.6	10.8	102.1
Fair value of liabilities assumed	0.0	(8.3)	(0.3)	(8.3)
Net cash paid for acquisition	$ 0.0	$ 135.2	$ 13.7	$ 135.8

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The fair value of assets acquired in noncash investing or financing activities.

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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