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Business Combinations - Pro Forma Results of Operation (Details) - USD ($) $ in Millions	2 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Business acquisition, pro forma revenue		$ 1,090.4	$ 1,012.8	$ 3,216.1	$ 2,978.3
Business acquisition, pro forma net income		$ 45.4	$ 100.1	$ 181.8	$ 320.9
Altru Health System and Trinity Medical Center
Business Acquisition [Line Items]
Business combination, pro forma information, revenue of acquiree since acquisition date, actual	$ 0.0
Business combination, pro forma information, earnings of acquiree since acquisition date, actual	$ 0.0

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
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