Accounting Policies (Details 2) - USD ($) $ in Millions		12 Months Ended
	Nov. 30, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Intangible assets
Non-cash pre-tax impairment charges of indefinite lived intangible assets		$ 0.6	$ 1.3	$ 0.7
Long-lived assets written-down		0.6	1.3
Intangible assets subject to amortization
Gross Carrying Amount		301.2	295.1
Accumulated Amortization		(144.6)	(123.6)
Net Carrying Amount		156.6	171.5
Indefinite-lived intangible assets
Indefinite-lived intangible assets		36.2	38.6
Intangible assets
Gross Carrying Amount		337.4	333.7
Net Carrying Amount		$ 192.8	210.1
Weighted-average amortization		11 years 10 months 24 days
Aggregate amortization expense for amortized intangible assets		$ 20.9	15.2	$ 14.7
Future amortization expense
Future amortization expense, 2016		20.1
Future amortization expense, 2017		19.5
Future amortization expense, 2018		16.2
Future amortization expense, 2019		12.5
Future amortization expense, 2020		12.2
Apex
Intangible assets
Net Carrying Amount		$ 10.1
Weighted-average amortization		13 years
Patents
Intangible assets subject to amortization
Gross Carrying Amount		$ 16.1	16.2
Accumulated Amortization		(14.1)	(13.3)
Net Carrying Amount		$ 2.0	2.9
Intangible assets
Weighted-average amortization		4 years
Customer relationships
Intangible assets subject to amortization
Gross Carrying Amount		$ 212.5	206.7
Accumulated Amortization		(102.1)	(87.5)
Net Carrying Amount		$ 110.4	119.2
Intangible assets
Weighted-average amortization		11 years 6 months
Customer relationships | Apex
Intangible assets
Gross Carrying Amount		$ 8.4
Weighted-average amortization	10 years	10 years
Technology
Intangible assets subject to amortization
Gross Carrying Amount		$ 41.3	42.1
Accumulated Amortization		(16.1)	(12.9)
Net Carrying Amount		$ 25.2	29.2
Intangible assets
Weighted-average amortization		9 years 7 months 6 days
Trade name
Intangible assets subject to amortization
Gross Carrying Amount		$ 21.9	20.6
Accumulated Amortization		(6.4)	(4.2)
Net Carrying Amount		$ 15.5	16.4
Intangible assets
Weighted-average amortization		14 years 6 months
Trade name | Apex
Intangible assets
Gross Carrying Amount		$ 1.7
Weighted-average amortization	15 years	15 years
Trade name | Americas
Intangible assets
Long-lived assets written-down		$ 0.5	0.5
Trade name | EMEA
Intangible assets
Long-lived assets written-down		0.1	0.8
Other
Intangible assets subject to amortization
Gross Carrying Amount		9.4	9.5
Accumulated Amortization		(5.9)	(5.7)
Net Carrying Amount		$ 3.5	$ 3.8
Intangible assets
Weighted-average amortization		32 years 6 months