Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net (loss) income	$ (34.3)	$ 10.9	$ (46.6)	$ 22.5
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation and amortization	24.1	18.4	69.3	56.3
Non-cash interest expense, net			3.1	0.6
Equity-based compensation expense	3.0	2.7	9.9	7.6
Loss (gain) on disposals and deconsolidations, net	0.7	0.6	7.1	(7.0)
Impairment charges	33.5	0.0	33.5	0.0
Loss on debt extinguishment	0.0	0.0	0.0	11.7
Deferred income taxes			(15.3)	4.1
Income from equity investments, net of distributions received			(1.0)	0.5
Non-cash lease expense			29.4	28.8
Changes in operating assets and liabilities, net of acquisitions and divestitures:
Accounts receivable			(11.9)	7.7
Medicare accelerated payments and deferred governmental grants			141.0	0.0
Other operating assets and liabilities			19.5	(28.7)
Net cash provided by operating activities			238.0	104.1
Cash flows from investing activities:
Purchases of property and equipment			(27.8)	(50.2)
Payments for acquisitions, net of cash acquired			(14.2)	(13.8)
Proceeds from disposals of facilities and other assets			48.3	17.6
Purchases of equity investments			0.0	(15.2)
Other investing activities			0.5	(0.2)
Net cash provided by (used in) investing activities			6.8	(61.8)
Cash flows from financing activities:
Principal payments on long-term debt			(197.3)	(436.1)
Borrowings of long-term debt			428.0	442.5
Payments of debt issuance costs			(8.3)	(8.8)
Payment of premium on debt extinguishment			0.0	(17.8)
Distributions to non-controlling interest holders			(82.3)	(89.5)
Payments related to ownership transactions with non-controlling interest holders			(27.3)	(4.6)
Other financing activities			(0.3)	(1.0)
Net cash provided by (used in) financing activities			112.5	(115.3)
Net increase (decrease) in cash, cash equivalents and restricted cash			357.3	(73.0)
Cash, cash equivalents and restricted cash at beginning of period			93.0	184.6
Cash, cash equivalents and restricted cash at end of period	$ 450.3	$ 111.6	$ 450.3	$ 111.6