XML 37 R24.htm IDEA: XBRL DOCUMENT v3.7.0.1
6. Long-Term Debt (Tables)
 3 Months Ended
Mar. 31, 2017
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,
2017
 
December 31, 2016
4.875% Senior Notes due 2020 principal amount
$
425.0

 
$
425.0

Less unamortized discount and debt issuance costs
(2.4
)
 
(2.5
)
Long-term debt less unamortized discount and debt issuance costs
422.6

 
422.5

Capital leases and other debt
12.2

 
12.0

 
434.8

 
434.5

Less current maturities
(0.5
)
 
(0.3
)
Long-term debt
$
434.3

 
$
434.2