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Secured Debt and Credit Facilities (Tables)
 12 Months Ended
Dec. 31, 2011
Debt Disclosure [Abstract]  
Secured credit facility and long-term debt
 
 
December 31, 2011
 
December 31, 2010
Revolving credit facility
 
$
—

 
$
—

Other
 
4.7

 
13.1

Total
 
4.7

 
13.1

Less — Current portion
 
(1.3
)
 
(1.3
)
Long-term secured debt
 
$
3.4

 
$
11.8