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Goodwill and Intangible Assets (Tables) | 12 Months Ended
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Dec. 31, 2020
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) | Proprietary Products |  | Contract-Manufactured Products |  | Total
Balance, December 31, 2018 | $ | 76.0 |  |  | $ | 29.8 |  |  | $ | 105.8 |
Goodwill recorded due to acquisition | 2.6 |  |  | — |  |  | 2.6 |
Foreign currency translation | (0.5) |  |  | (0.1) |  |  | (0.6) |
Balance, December 31, 2019 | 78.1 |  |  | 29.7 |  |  | 107.8 |
Foreign currency translation | 2.8 |  |  | 0.5 |  |  | 3.3 |
Balance, December 31, 2020 | $ | 80.9 |  |  | $ | 30.2 |  |  | $ | 111.1 |
Schedule of Intangible Assets by Major Class | Intangible assets and accumulated amortization as of December 31 were as follows:
| 2020 |  | 2019
($ in millions) | Cost |  | Accumulated Amortization |  | Net |  | Cost |  | Accumulated Amortization |  | Net
Patents and licensing | $ | 25.9 |  |  | $ | (17.9) |  |  | $ | 8.0 |  |  | $ | 21.5 |  |  | $ | (16.0) |  |  | $ | 5.5 |
Technology | 3.3 |  |  | (1.7) |  |  | 1.6 |  |  | 3.3 |  |  | (1.5) |  |  | 1.8 |
Trademarks | 2.0 |  |  | (1.8) |  |  | 0.2 |  |  | 2.0 |  |  | (1.8) |  |  | 0.2 |
Customer relationships | 40.9 |  |  | (23.4) |  |  | 17.5 |  |  | 40.3 |  |  | (21.6) |  |  | 18.7 |
Customer contracts | 11.1 |  |  | (7.9) |  |  | 3.2 |  |  | 11.0 |  |  | (7.4) |  |  | 3.6 |
| $ | 83.2 |  |  | $ | (52.7) |  |  | $ | 30.5 |  |  | $ | 78.1 |  |  | $ | (48.3) |  |  | $ | 29.8 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13854-109267 + Details
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