Goodwill and Intangible Assets, net - Other Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Other Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 552.4	$ 465.0
Accumulated Amortization	(165.3)	(146.3)
Total intangible assets	606.0	518.5
Tradenames and other
Other Intangible Assets [Line Items]
Indefinite-lived intangible assets (excluding goodwill)	53.6	53.5
Patents, tradenames and trademarks
Other Intangible Assets [Line Items]
Finite-lived intangible assets, gross	144.6	133.8
Accumulated Amortization	(42.6)	(38.0)
Customer/agent relationships and other
Other Intangible Assets [Line Items]
Finite-lived intangible assets, gross	407.8	331.2
Accumulated Amortization	$ (122.7)	$ (108.3)