Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Share data	Sep. 30, 2011	Jun. 30, 2011
Current assets:
Accounts receivable, net of allowance for doubtful accounts	$ 251.2	$ 205.0
Vanguard Health Systems, Inc. stockholders' equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	75,317,000	71,482,000
Common stock, shares outstanding	75,317,000	71,482,000