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Goodwill and Other Intangibles - Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2015 | Dec. 31, 2014
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, gross |  |  |  |  |  | $ 624.6 | $ 289.4
Amortized intangible assets, accumulated amortization |  | $ 156.7 |  | $ 150.8 | $ 150.8 | 161.5 | 156.7
Amortized intangible assets, net |  |  |  |  |  | 463.1 | 132.7
Other intangible assets, net |  |  |  |  |  | 543.8 | 151.1
Amortized intangible assets, future amortization expense [Abstract] |  |  |  |  |  |  |
Future Amortization Expense - 2016 |  |  |  |  |  | 40.4 |
Future Amortization Expense - 2017 |  |  |  |  |  | 39.2 |
Future Amortization Expense - 2018 |  |  |  |  |  | 37.9 |
Future Amortization Expense - 2019 |  |  |  |  |  | 37.4 |
Future Amortization Expense - 2020 |  |  |  |  |  | 37.0 |
Intangible assets (excluding goodwill), gross [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 307.8 |  | 320.3 |  |  |
Acquisitions |  | 423.8 | [1] | 42.7 |  |  |
Impairment | [1] | 0.0 |  | (10.3) |  |  |
Translation adjustment |  | (26.3) |  | (44.9) |  |  |
Ending balance, December 31 |  | 705.3 |  | 307.8 | 320.3 |  |
Intangible assets, accumulated amortization [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 156.7 |  | 150.8 |  |  |
Amortization |  | 19.2 |  | 27.2 | 26.7 |  |
Translation adjustment |  | (14.4) |  | (21.3) |  |  |
Ending balance, December 31 |  | 161.5 |  | 156.7 | $ 150.8 |  |
Patented and unpatented technology [Member] |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, gross |  |  |  |  |  | 128.7 | 89.3
Amortized intangible assets, accumulated amortization |  | 39.1 |  | 39.1 |  | 42.4 | 39.1
Amortized intangible assets, net |  |  |  |  |  | 86.3 | 50.2
Intangible assets, accumulated amortization [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 39.1 |  |  |  |  |
Ending balance, December 31 |  | 42.4 |  | 39.1 |  |  |
Customer relationships |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, gross |  |  |  |  |  | 490.3 | 194.3
Amortized intangible assets, accumulated amortization |  | 115.1 |  | 115.1 |  | 116.1 | 115.1
Amortized intangible assets, net |  |  |  |  |  | 374.2 | 79.2
Intangible assets, accumulated amortization [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 115.1 |  |  |  |  |
Ending balance, December 31 |  | 116.1 |  | 115.1 |  |  |
Miscellaneous amortizable assets |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, gross |  |  |  |  |  | 5.6 | 5.8
Amortized intangible assets, accumulated amortization |  | 2.5 |  | 2.5 |  | 3.0 | 2.5
Amortized intangible assets, net |  |  |  |  |  | 2.6 | 3.3
Intangible assets, accumulated amortization [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 2.5 |  |  |  |  |
Ending balance, December 31 |  | $ 3.0 |  | $ 2.5 |  |  |
In-process research and development |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Indefinite-lived intangible assets (excluding goodwill) |  |  |  |  |  | 14.6 | 10.8
Unamortized trade names |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Unamortized trade names |  |  |  |  |  | $ 66.1 | $ 7.6
Minimum [Member] |  |  |  |  |  |  |
Amortized intangible assets, future amortization expense [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, useful life |  | 3 years |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |
Amortized intangible assets, future amortization expense [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, useful life |  | 15 years |  |  |  |  |
[1] | *Acquisitions relate to the Company's 2015 purchases of Remy and BERU Diesel and the 2014 purchase of Gustav Wahler GmbH u. Co. KG and its general partner.** Impairment relates to Engine unamortized trade names. The impairment charge is recorded in Other expense, net.

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