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Fair Value Measurements (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value | $ 5.8 | $ 4.6 | $ 3.7
Adjustment to contingent consideration fair value | 0.2 | 3.2 | 20.5
Foreign Currency Transaction Gain, before Tax | (0.4) |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Available for sale securities | 5.8 |  |
Fair Value, Measurements, Recurring |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Available for sale securities | 5.8 | 4.6 |
Trading securities | 2.3 | 2.3 |
Contingent Consideration, Liability | 0.0 | 0.2 | $ 3.8
Total |  | 0.2 |
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Available for sale securities | 0.0 | 0.0 |
Trading securities | 2.3 | 2.3 |
Total |  | 0.0 |
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2 |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Available for sale securities | 0.0 | 0.0 |
Trading securities | 0.0 | 0.0 |
Total |  | 0.0 |
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Assets, Fair Value Disclosure [Abstract] |  |  |
Available for sale securities | 5.8 | 4.6 |
Trading securities | 0.0 | 0.0 |
Total |  | 0.2 |
Senior Secured Notes Maturing 2017 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Notes Payable, Fair Value Disclosure | $ 366.2 | $ 371.0 |

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 + Details
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