v3.3.0.814
Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
$ in Millions
Sep. 30, 2015
Dec. 31, 2014
Statement Of Financial Position [Abstract]    
Receivables, allowance for doubtful accounts (in dollars) $ 3.7 $ 5.6
Preferred stock, par value (in dollars per share) $ 0.01 $ 0.01
Preferred stock, shares authorized 75,000,000 75,000,000
Preferred stock, shares issued 0 0
Common stock, par value (in dollars per share) $ 0.01 $ 0.01
Common stock, shares authorized 200,000,000 200,000,000
Common stock, shares issued 70,580,143 70,196,116
Common stock, shares outstanding 70,580,143 70,196,116