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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Goodwill | The changes in the carrying amount of goodwill by reportable segment were as follows:
($ in millions) | Packaging Systems | Delivery Systems | Total
Balance, December 31, 2013 | $ | 38.0 |  | $ | 76.2 |  | $ | 114.2 |
Disposition | — |  | (0.5 | ) | (0.5 | )
Foreign currency translation | (3.9 | ) | (1.2 | ) | (5.1 | )
Balance, December 31, 2014 | 34.1 |  | 74.5 |  | 108.6 |
Foreign currency translation | (3.1 | ) | (0.9 | ) | (4.0 | )
Balance, December 31, 2015 | $ | 31.0 |  | $ | 73.6 |  | $ | 104.6 |
Schedule of Intangible Assets by Major Class | Intangible assets and accumulated amortization as of December 31 were as follows:
| 2015 | 2014
($ in millions) | Cost | Accumulated Amortization | Net | Cost | Accumulated Amortization | Net
Patents and licensing | $ | 19.7 |  | $ | (12.8 | ) | $ | 6.9 |  | $ | 20.1 |  | $ | (11.5 | ) | $ | 8.6 |
Technology | 3.4 |  | (0.6 | ) | 2.8 |  | 3.4 |  | (0.4 | ) | 3.0 |
Trademarks | 12.0 |  | (1.4 | ) | 10.6 |  | 12.1 |  | (1.3 | ) | 10.8 |
Customer relationships | 29.5 |  | (17.7 | ) | 11.8 |  | 29.5 |  | (16.3 | ) | 13.2 |
Customer contracts | 10.8 |  | (5.3 | ) | 5.5 |  | 11.2 |  | (4.8 | ) | 6.4 |
| $ | 75.4 |  | $ | (37.8 | ) | $ | 37.6 |  | $ | 76.3 |  | $ | (34.3 | ) | $ | 42.0 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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