Intangible Assets and Goodwill (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015
Amortizable intangible assets
Carrying Amount	$ 232.1	$ 208.7
Accumulated Amortization	89.5	72.9
Customer relationships
Amortizable intangible assets
Carrying Amount	203.6	181.1
Accumulated Amortization	71.0	57.5
Other
Amortizable intangible assets
Carrying Amount	28.5	27.6
Accumulated Amortization	$ 18.5	$ 15.4

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

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+ References

No definition available.

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