Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Increase in provision for doubtful accounts	$ 42.6
Change in estimated implicit price concessions	486.1
Patient Services
Disaggregation of Revenue [Line Items]
Charity care program, costs	55.8	$ 43.9	$ 46.0
Patient Services | Third-Party Payor
Disaggregation of Revenue [Line Items]
Revenue adjustment, net	8.3	5.8	$ 6.7
Receivable (payable), net	(7.8)	2.6
Receivables, current	21.1	29.9
Payables, current	$ 28.9	$ 27.3