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Investments and Acquisition Activities (Tables)
9 Months Ended
Sep. 30, 2012
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Equity Method Investments
ACDL summarized unaudited balance sheet information is as follows:
 
September 30,
 
2012
 
2011
 
(in millions)
Current assets
$
79.0

 
$
72.1

Total assets
$
371.6

 
$
223.2

Current liabilities
$
62.5

 
$
23.8

Contingently redeemable shares
$
314.0

 
$
260.3

Total liabilities
$
457.1

 
$
295.1