Consolidated Balance Sheets Parenthetical (Parentheticals) (USD $) In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Allowance for doubtful accounts	$ 5.4	$ 5.4
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	100.0	0
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Common shares, par value	$ 0.01	$ 0.01
Common shares, shares authorized	1,000.0	286.1
Common shares, shares issued	172.0	145.2
Common shares, shares outstanding	172.0	145.1