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Long-Term Debt and Notes Payable (Tables)
 9 Months Ended
Sep. 30, 2017
Debt Disclosure [Abstract]  
Components Of Debt
The following table summarizes the Company’s debt as of September 30, 2017 and December 31, 2016:
(in millions)
September 30,
2017
 
December 31,
2016
Long-term debt consists of:
 
 
 
2.75% notes due December 2018
 
 
 
Principal amount
$
250.0

 
$
250.0

Less debt issuance costs
(0.5
)
 
(0.8
)
Carrying Value
$
249.5

 
$
249.2

 
 
 
 
4.45% notes due December 2023
 
 
 
Principal amount
$
300.0

 
$
300.0

Less debt issuance costs
(1.7
)
 
(1.9
)
Carrying Value
$
298.3

 
$
298.1

 
 
 
 
6.55% notes due November 2036
 
 
 
Principal Amount
$
200.0

 
$
200.0

Less unamortized discount
(0.6
)
 
(0.7
)
Less debt issuance costs
(1.3
)
 
(1.3
)
Carrying Value
$
198.1

 
$
198.0

 
 
 
 
Total long-term debt
$
745.9

 
$
745.3

For additional details regarding the Company’s debt financing, reference is made to Note 7, “Long-Term Debt and Notes Payable” of the Company’s financial statements as of and for the year ended December 31, 2016 included in the Company’s 2016 Annual Report on Form 10-K.