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Goodwill and Other Intangibles - Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2016 | Dec. 31, 2015
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, gross |  |  |  |  |  | $ 594.8 | $ 624.6
Amortized intangible assets, accumulated amortization |  | $ 161.5 |  | $ 156.7 | $ 156.7 | 186.1 | 161.5
Amortized intangible assets, net |  |  |  |  |  | 408.7 | 463.1
Other intangible assets, net |  |  |  |  |  | 463.5 | 543.8
Amortized intangible assets, future amortization expense [Abstract] |  |  |  |  |  |  |
Future Amortization Expense - 2017 |  |  |  |  |  | 36.9 |
Future Amortization Expense - 2018 |  |  |  |  |  | 35.7 |
Future Amortization Expense - 2019 |  |  |  |  |  | 35.2 |
Future Amortization Expense - 2020 |  |  |  |  |  | 34.8 |
Future Amortization Expense - 2021 |  |  |  |  |  | 34.8 |
Intangible assets (excluding goodwill), gross [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 705.3 |  | 307.8 |  |  |
Acquisitions |  | 0.0 | [1] | 423.8 |  |  |
Impairment | [1] | (23.9) |  | 0.0 |  |  |
Divestitures |  | (19.9) |  | 0.0 |  |  |
Translation adjustment |  | (11.9) |  | (26.3) |  |  |
Ending balance, December 31 |  | 649.6 |  | 705.3 | 307.8 |  |
Intangible assets, accumulated amortization [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 161.5 |  | 156.7 |  |  |
Amortization |  | 40.4 |  | 19.2 | 27.2 |  |
Impairment |  | (8.2) |  | 0.0 |  |  |
Divestitures |  | (0.3) |  | 0.0 |  |  |
Translation adjustment |  | (7.3) |  | (14.4) |  |  |
Ending balance, December 31 |  | 186.1 |  | 161.5 | $ 156.7 |  |
Patented and unpatented technology [Member] |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, gross |  |  |  |  |  | 108.1 | 128.7
Amortized intangible assets, accumulated amortization |  | 42.4 |  | 42.4 |  | 41.5 | 42.4
Amortized intangible assets, net |  |  |  |  |  | 66.6 | 86.3
Intangible assets, accumulated amortization [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 42.4 |  |  |  |  |
Ending balance, December 31 |  | 41.5 |  | 42.4 |  |  |
Customer relationships |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, gross |  |  |  |  |  | 481.4 | 490.3
Amortized intangible assets, accumulated amortization |  | 116.1 |  | 116.1 |  | 141.2 | 116.1
Amortized intangible assets, net |  |  |  |  |  | 340.2 | 374.2
Intangible assets, accumulated amortization [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 116.1 |  |  |  |  |
Ending balance, December 31 |  | 141.2 |  | 116.1 |  |  |
Miscellaneous amortizable assets |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Amortized intangible assets, gross |  |  |  |  |  | 5.3 | 5.6
Amortized intangible assets, accumulated amortization |  | 3.0 |  | 3.0 |  | 3.4 | 3.0
Amortized intangible assets, net |  |  |  |  |  | 1.9 | 2.6
Intangible assets, accumulated amortization [Roll Forward] |  |  |  |  |  |  |
Beginning balance, January 1 |  | 3.0 |  |  |  |  |
Ending balance, December 31 |  | $ 3.4 |  | $ 3.0 |  |  |
In-process research and development |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Indefinite-lived intangible assets (excluding goodwill) |  |  |  |  |  | 3.8 | 14.6
Unamortized trade names |  |  |  |  |  |  |
Intangible Assets, Net (Excluding Goodwill) [Abstract] |  |  |  |  |  |  |
Unamortized trade names |  |  |  |  |  | $ 51.0 | $ 66.1
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.** Relates to the impairment of the Company's Etatech ECCOS intellectual technology in 2016.*** Divestiture relates to the Company's sale of Remy light vehicle aftermarket business in 2016.

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