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8. Other Income and Expenses (Tables)
9 Months Ended
Sep. 30, 2011
Other Income and Expense [Abstract] 
Schedule of other income (expense), net
Other (income) expense, net includes the following components (in millions):

 
Three Months Ended
 
Nine Months Ended
 
September 30,
 
September 30,
 
2011
 
2010
 
2011
 
2010
Interest and investment (income) expense
$
0.1

 
$
(0.7
)
 
$
(5.5
)
 
$
(4.3
)
Net realized gains on investments
(0.1
)
 
(0.1
)
 
(0.3
)
 
(0.4
)
Miscellaneous other (income) expense items
(0.5
)
 
0.5

 
(0.1
)
 
1.1

Other (income) expense, net
$
(0.5
)
 
$
(0.3
)
 
$
(5.9
)
 
$
(3.6
)