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Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2014
Fair Value Disclosures [Abstract]  
Carrying Value and Fair Value of Other Financial Instruments
The carrying value and fair value of other financial instruments are as follows:
 
September 30, 2014
 
December 31, 2013
(dollars in millions)
Carrying Value
 
Fair Value
 
Carrying Value
 
Fair Value
6 3/8% Senior Notes due 2022
$
525.0

 
$
546.0

 
$
525.0

 
$
539.4

Revolving Credit Agreement
30.0

 
30.0

 

 

Other financing arrangements
55.1

 
66.4

 
56.3

 
63.8