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Fixed Assets and Lease Commitments - Schedule of Fixed Assets (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Fixed assets
Fixed assets, at cost	$ 231.0	$ 199.4
Accumulated depreciation and amortization	(116.9)	(104.0)
Fixed assets, net	114.1	95.4
Building and Leasehold Improvements
Fixed assets
Fixed assets, at cost	104.7	84.1
Software
Fixed assets
Fixed assets, at cost	45.4	40.8
Equipment
Fixed assets
Fixed assets, at cost	39.9	38.3
Furniture and Fixtures
Fixed assets
Fixed assets, at cost	22.4	17.5
Land and Improvements
Fixed assets
Fixed assets, at cost	$ 18.6	$ 18.7

X

- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

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-Section S99
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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Section 50
-Paragraph 1
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+ References

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-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-Publisher SEC
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