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Intangible Assets and Goodwill - Indefinite Lived Assets (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Mar. 31, 2015 USD ($) | Dec. 31, 2015 USD ($) Reporting_Unit | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Asset impairment charge | $ 26.4 | $ 103.6 | $ 35.1 | $ 4.6 |  |  |
Discount rate | 8.00% | 9.00% |  |  | 8.00% |  |
Impairment of intangible assets |  |  |  |  | $ 128.6 | $ 6.0 | $ 0.0
Intangible assets, gross carrying amount | $ 2,312.1 |  |  |  | $ 2,312.1 | 2,100.2 |
Number of reporting units | Reporting_Unit |  |  |  |  | 8 |  |
Trade names |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Discount rate |  | 9.00% |  |  |  |  |
Impairment of intangible assets |  | $ 103.6 |  |  | $ 0.0 | 6.0 |
Impairment of intangible assets, tax benefit |  | $ 38.8 | 9.5 |  |  |  |
Depreciation and amortization | Trade names |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Asset impairment charge |  |  | 25.0 |  |  |  |
Minimum |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Useful life minimum (in years) |  |  |  |  | 2 years |  |
Minimum | Trade names |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Royalty rates |  | 0.50% |  |  |  |  |
Maximum |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Useful life minimum (in years) |  |  |  |  | 16 years |  |
Maximum | Trade names |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Royalty rates |  | 1.00% |  |  |  |  |
Trade names |  |  |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |  |  |
Impairment of intangible assets |  | $ 103.6 | $ 25.0 |  | $ 128.6 | $ 6.0 |
Impairment of intangible assets, tax benefit |  |  |  |  | 48.3 |  |
Intangible assets, gross carrying amount | $ 226.1 | $ 97.5 |  |  | $ 226.1 |  |
Useful life minimum (in years) |  | 15 years |  |  |  |  |

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
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