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Restructuring and Acquisition Charges (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2017 | Jun. 30, 2016 | Jun. 30, 2017 | Jun. 30, 2016
Restructuring and Related Activities [Abstract] |  |  |  |
Restructuring and acquisition charges | $ 5.4 | $ 10.3 | $ 9.9 | $ 17.9
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | 0.7 |  | (2.1) | 0.2
Gain on foreign currency derivative, acquisition payment |  |  |  | 2.3
Restructuring reserve [Roll Forward] |  |  |  |
Restructuring reserve, beginning balance |  |  | 31.0 | 8.6
Restructuring charges |  |  | 12.0 | 20.0
Payments made |  |  | (21.4) | (11.8)
Restructuring reserve, ending balance | 21.6 | 16.8 | 21.6 | 16.8
Severance [Member] |  |  |  |
Restructuring reserve [Roll Forward] |  |  |  |
Restructuring reserve, beginning balance |  |  | 19.7 | 2.7
Restructuring charges |  |  | 6.4 | 11.1
Payments made |  |  | (15.3) | (3.6)
Restructuring reserve, ending balance | 10.8 | 10.2 | 10.8 | 10.2
Lease Exit [Member] |  |  |  |
Restructuring reserve [Roll Forward] |  |  |  |
Restructuring reserve, beginning balance |  |  | 5.5 | 5.7
Restructuring charges |  |  | 1.3 | 0.0
Payments made |  |  | (0.4) | (0.4)
Restructuring reserve, ending balance | 6.4 | 5.3 | 6.4 | 5.3
Other Acquisition Costs [Member] |  |  |  |
Restructuring reserve [Roll Forward] |  |  |  |
Restructuring reserve, beginning balance |  |  | 5.8 | 0.2
Restructuring charges |  |  | 4.3 | 8.9
Payments made |  |  | (5.7) | (7.8)
Restructuring reserve, ending balance | $ 4.4 | $ 1.3 | $ 4.4 | $ 1.3

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