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Goodwill and Intangible Assets (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets |  | $ 66.7 | $ 1.9
Definite-Lived Intangible Assets, Additions as a Result of Acquisitions |  | 66.4 |
Definite-Lived Intangible Assets, Amortization |  | 1.6 |
Total Intangible Assets |  | 83.3 | 1.9
Total Intangible Assets, Additions as a Result of Acquisitions |  | 83.0 |
Definite-Lived Intangible Assets, Fiscal Year Amortization Expense [Abstract] |  |  |
Definite-Lived Intangible Assets, Estimated Amortization Expense, Remainder of 2015 |  | 2.6 |
Definite-Lived Intangible Assets, Estimated Amortization Expense, 2016 |  | 4.3 |
Definite-Lived Intangible Assets, Estimated Amortization Expense, 2017 |  | 4.2 |
Definite-Lived Intangible Assets, Estimated Amortization Expense, 2018 |  | 4.1 |
Definite-Lived Intangible Assets, Estimated Amortization Expense, 2019 |  | 4.0 |
Definite-Lived Intangible Assets, Estimated Amortization Expense, Thereafter |  | $ 47.5 |
Minimum [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets, Useful Life (Years) |  | 1 year |
Maximum [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets, Useful Life (Years) |  | 23 years |
Weighted Average [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets, Useful Life (Years) |  | 21 years |
Trademarks and Trade Names [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Indefinite-Lived Intangible Assets |  | $ 16.6 | 0.0
Indefinite-Lived Intangible Assets, Additions as a Result of Acquisitions |  | 16.6 |
Customer Relationships [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets |  | 58.8 | 0.0
Definite-Lived Intangible Assets, Additions as a Result of Acquisitions |  | 60.1 |
Definite-Lived Intangible Assets, Amortization |  | $ 1.3 |
Definite-Lived Intangible Assets, Useful Life (Years) |  | 23 years |
Developed Technology and Other [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets | [1] | $ 7.9 | $ 1.9
Definite-Lived Intangible Assets, Additions as a Result of Acquisitions | [1] | 6.3 |
Definite-Lived Intangible Assets, Amortization | [1] | $ 0.3 |
Developed Technology and Other [Member] | Minimum [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets, Useful Life (Years) |  | 1 year |
Developed Technology and Other [Member] | Maximum [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets, Useful Life (Years) |  | 14 years |
Developed Technology and Other [Member] | Weighted Average [Member] |  |  |
Intangible Assets [Abstract] |  |  |
Definite-Lived Intangible Assets, Useful Life (Years) |  | 9 years |
Investments and Other [Member] |  |  |
Goodwill [Roll Forward] |  |  |
Balance as of December 31, 2014 |  | $ 2.9 |
Acquired Goodwill |  | 127.2 |
Balance as of June 30, 2015 |  | $ 130.1 |
[1] | Developed Technology and Other includes patents, non-compete agreements, and land easements.

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- Definition Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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