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5. Notes Payable and Long-Term Debt (Tables)
 12 Months Ended
Dec. 31, 2015
Debt Disclosure [Abstract]  
Principal components of long-term debt [Table Text Block]
The principal components of long-term debt are as follows (in millions):
 
December 31,
2015
 
December 31, 2014
 
 
 
 
4.875% Senior Notes due 2020, net of discount
$
423.7

 
$
423.5

Capital leases and other debt
12.3

 
12.5

 
436.0

 
436.0

Less current maturities
(0.3
)
 
(0.3
)
Long-term debt
$
435.7

 
$
435.7