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Business Combinations - Net Cash Paid for Acquisition (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill	$ 26.2	$ 8.8	$ 9.3
Net cash paid for acquisitions	0.0	1.1	0.0
Altru Health System, Trinity Medical Center And NCH Healthcare System
Business Acquisition [Line Items]
Fair value of assets acquired	0.9
Goodwill	26.2
Fair value of noncontrolling interest owned by joint venture partner	(27.1)
Net cash paid for acquisitions	$ 0.0
Shannon Medical, Heritage Valley & ECHD Ventures
Business Acquisition [Line Items]
Fair value of assets acquired		1.4
Goodwill		8.8
Fair value of noncontrolling interest owned by joint venture partner		(9.1)
Net cash paid for acquisitions		$ 1.1
Portercare Adventist and Premier Health Partners
Business Acquisition [Line Items]
Fair value of assets acquired			1.6
Goodwill			9.3
Fair value of noncontrolling interest owned by joint venture partner			(10.9)
Net cash paid for acquisitions			$ 0.0

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Business Combination, Noncontrolling Interest, Fair Value

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