Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets
Allowance for doubtful accounts	$ 23.1	$ 28.7
Liabilities and Shareholders' Equity
Convertible perpetual preferred stock, par value	$ 0.10	$ 0.10
Convertible perpetual preferred stock, shares authorized	1,500,000	1,500,000
Convertible perpetual preferred stock, shares issued	96,245	353,355
Convertible perpetual preferred stock, liquidation preference	$ 1,000	$ 1,000
HealthSouth shareholders' equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	102,648,302	100,919,297
Treasury stock, shares	14,654,436	5,233,521