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Debt (Tables)
12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]  
Long-term Debt Obligations , Net of Current Maturities
The following table summarizes our long-term debt obligations, net of unamortized debt issuance costs and current maturities, at December 31. The interest rates shown in parentheses are as of December 31, 2018.
($ in millions)
2018
 
2017
Note payable, due December 31, 2019
$
0.1

 
$
0.1

Credit Facility, due October 15, 2020 (1.00%)
28.6

 
29.6

Series A notes, due July 5, 2022 (3.67%)
42.0

 
42.0

Series B notes, due July 5, 2024 (3.82%)
53.0

 
53.0

Series C notes, due July 5, 2027 (4.02%)
73.0

 
73.0

 
196.7

 
197.7

Less: unamortized debt issuance costs
0.6

 
0.7

Total debt
196.1

 
197.0

Less: current portion of long-term debt
0.1

 

Long-term debt, net
$
196.0

 
$
197.0