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Intangible Assets (Tables) | 6 Months Ended
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Jun. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Intangible Assets | The gross carrying amount and accumulated amortization for intangible assets consisted of the following ($ in millions):
| June 30, 2014 |  | December 31, 2013
| Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount |  | Gross Carrying Amount |  | Accumulated Amortization |  | Net Carrying Amount
Amortized intangible assets |  |  |  |  |  |  |  |  |  |  |
Customer Relationships (Filtration) | 45.3 |  |  | 1.1 |  |  | 44.2 |  |  | 45.3 |  |  | 0.1 |  |  | 45.2 |
Developed Technology (Filtration) | 13.8 |  |  | 0.6 |  |  | 13.2 |  |  | 13.8 |  |  | 0.1 |  |  | 13.7 |
Total | $ | 59.1 |  |  | $ | 1.7 |  |  | $ | 57.4 |  |  | $ | 59.1 |  |  | $ | 0.2 |  |  | $ | 58.9 |
Unamortized intangible assets (Filtration) |  |  |  |  |  |  |  |
Trade names | $ | 21.8 |  |  |  |  |  |  | $ | 21.8 |  |  |  |  |

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- Definition Schedule of Intangible Assets [Table Text Block] + References No definition available. + Details
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