Earnings per Common Share - Computation of Basic and Diluted Earnings Per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Basic Numerator:
Income from continuing operations	$ 71.3	$ 142.3	$ 181.4	$ 275.1
Less: Net income attributable to noncontrolling interests included in continuing operations	(22.6)	(28.7)	(45.2)	(54.2)
Less: Income allocated to participating securities	(0.1)	(0.5)	(0.5)	(1.0)
Income from continuing operations attributable to Encompass Health common shareholders	48.6	113.1	135.7	219.9
Loss from discontinued operations, net of tax, attributable to Encompass Health common shareholders	0.0	(0.3)	0.0	(0.3)
Net income attributable to Encompass Health common shareholders	$ 48.6	$ 112.8	$ 135.7	$ 219.6
Denominator:
Basic weighted average common shares outstanding (in shares)	99.2	99.0	99.2	99.0
Basic earnings per share attributable to Encompass Health common shareholders:
Continuing operations (in dollars per share)	$ 0.49	$ 1.14	$ 1.37	$ 2.22
Discontinued operations (in dollars per share)	0	0	0	0
Net income (in dollars per share)	$ 0.49	$ 1.14	$ 1.37	$ 2.22
Diluted Numerator
Income from continuing operations	$ 71.3	$ 142.3	$ 181.4	$ 275.1
Less: Net income attributable to noncontrolling interests included in continuing operations	(22.6)	(28.7)	(45.2)	(54.2)
Income from continuing operations attributable to Encompass Health common shareholders	48.7	113.6	136.2	220.9
Loss from discontinued operations, net of tax, attributable to Encompass Health common shareholders	0.0	(0.3)	0.0	(0.3)
Net income attributable to Encompass Health common shareholders	$ 48.7	$ 113.3	$ 136.2	$ 220.6
Denominator:
Diluted weighted average common shares outstanding (in shares)	100.3	100.2	100.2	100.2
Diluted earnings per share attributable to Encompass Health common shareholders:
Continuing operations (in dollars per share)	$ 0.49	$ 1.13	$ 1.36	$ 2.20
Discontinued operations (in dollars per share)	0	0	0	0
Net income (in dollars per share)	$ 0.49	$ 1.13	$ 1.36	$ 2.20