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Debt (Tables) | 12 Months Ended
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Dec. 31, 2016
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, 2016.
($ in millions) | 2016 |  | 2015
Euro note B, due February 27, 2016 | $ | — |  |  | $ | 66.8 |
Term loan, due January 1, 2018 (2.27%) | 34.9 |  |  | 37.1 |
Note payable, due December 31, 2019 | 0.2 |  |  | 0.2 |
Credit Facility, due October 15, 2020 (1.00%) | 26.4 |  |  | 27.1 |
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 |
| 229.5 |  |  | 299.2 |
Less: unamortized debt issuance costs | 0.9 |  |  | 1.0 |
Total debt | 228.6 |  |  | 298.2 |
Less: current portion of long-term debt | 2.4 |  |  | 69.3 |
Long-term debt | $ | 226.2 |  |  | $ | 228.9 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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