XML 44 R40.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Debt (Schedule of Revolving Credit Facility) (Details) (USD $)
In Millions
Jun. 30, 2011
Dec. 31, 2010
Debt    
Borrowings under the revolving credit facility $ 0 $ 0
Credit facility term loan 85.0  
Credit facility term loan, non-current   85.0
Letters of credit outstanding, amount 7.3 17.3
Available credit $ 217.7 $ 207.7