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Restructuring and Acquisition Charges (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015 | Dec. 31, 2015
Restructuring Cost and Reserve [Line Items] |  |  |  |  |
Restructuring and acquisition charges | $ 10.3 | $ 1.8 | $ 17.9 | $ 2.6 |
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability |  |  |  |  | $ 0.2
Gain on foreign currency derivative, acquisition payment |  |  | 2.3 |  |
Restructuring reserve [Roll Forward] |  |  |  |  |
Restructuring reserve, beginning balance |  |  | 8.6 | 7.6 | 7.6
Restructuring charges |  |  | 20.0 | 2.6 |
Payments made |  |  | (11.8) | (5.9) |
Restructuring reserve, ending balance | 16.8 | 4.3 | 16.8 | 4.3 | 8.6
Severance [Member] |  |  |  |  |
Restructuring reserve [Roll Forward] |  |  |  |  |
Restructuring reserve, beginning balance |  |  | 2.7 | 3.0 | 3.0
Restructuring charges |  |  | 11.1 | 0.0 |
Payments made |  |  | (3.6) | (1.4) |
Restructuring reserve, ending balance | 10.2 | 1.6 | 10.2 | 1.6 | 2.7
Lease Exit [Member] |  |  |  |  |
Restructuring reserve [Roll Forward] |  |  |  |  |
Restructuring reserve, beginning balance |  |  | 5.7 | 4.2 | 4.2
Restructuring charges |  |  | 0.0 | 0.2 |
Payments made |  |  | (0.4) | (1.9) |
Restructuring reserve, ending balance | 5.3 | 2.5 | 5.3 | 2.5 | 5.7
Other Acquisition Costs [Member] |  |  |  |  |
Restructuring reserve [Roll Forward] |  |  |  |  |
Restructuring reserve, beginning balance |  |  | 0.2 | 0.4 | 0.4
Restructuring charges |  |  | 8.9 | 2.4 |
Payments made |  |  | (7.8) | (2.6) |
Restructuring reserve, ending balance | $ 1.3 | $ 0.2 | $ 1.3 | $ 0.2 | $ 0.2

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- Definition Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479 + Details
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