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Other Assets (Tables) | 12 Months Ended
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Dec. 31, 2017
Other Assets [Abstract] |
Schedule of Other Assets | Other assets consisted of the following ($ in millions):
| December 31,
| 2017 |  | 2016
Capitalized software costs, net of accumulated amortization | $ | 7.4 |  |  | $ | 4.4 |
Business tax credits, including VAT and ICMS (net of $10.6 million and $11.5 million reserve as of December 31, 2017 and 2016, respectively) | 2.4 |  |  | 2.5 |
Grantor trust assets | 12.2 |  |  | 10.3 |
Net pension assets | 4.6 |  |  | — |
Long-term supplies inventory | 7.0 |  |  | 6.0 |
Other assets | 5.9 |  |  | 4.3 |
Total | $ | 39.5 |  |  | $ | 27.5 |

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- Definition Tabular disclosure of noncurrent assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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