Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited)

v2.4.0.6
Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)
In Millions, except Share data, unless otherwise specified
Jun. 30, 2012
Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]    
Allowance for Accounts with partners $ 5.0 $ 4.4
Common stock, par value $ 0.10 $ 0.10
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares issued 63,103,437 62,376,563
Treasury stock, shares 5,257,638 5,257,638