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6. Long-Term Debt (Tables)
 3 Months Ended
Mar. 31, 2013
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments [Table Text Block]
The principal components of long-term debt are as follows (in millions):

 
March 31,
2013
 
December 31, 2012
 
 
 
 
8.0% Senior Subordinated Notes due 2016
$
297.1

 
$
296.9

4.875% Senior Notes due 2020
423.1

 
423.0

Capital leases and other debt
12.6

 
12.7

 
732.8

 
732.6

Less current maturities
(0.2
)
 
(0.2
)
Long-term debt
$
732.6

 
$
732.4