Reorganization and Restructuring (Details) $ in Millions	1 Months Ended		3 Months Ended				12 Months Ended
	Jan. 31, 2016 USD ($) director	Dec. 31, 2014 USD ($) employee	Mar. 31, 2016 USD ($) employee	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
2015 Reorganization and Restructuring
Restructuring Cost and Reserve [Line Items]
Reorganization and Restructuring			$ 2.8		$ 11.6
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance	$ 6.3		6.3
Expense (benefit)			2.8
Payments and utilization			(3.0)
Foreign currency exchange effects			0.0
Restructuring Reserve, ending balance			$ 6.1	$ 6.3			$ 6.3
2014 Reorganization and Restructuring
Restructuring Reserve [Roll Forward]
Expense (benefit)						$ 1.5
Minimum | 2015 Reorganization and Restructuring
Restructuring Cost and Reserve [Line Items]
Positions eliminated across the global workforce | employee			1,200
Expected cost savings			$ 20.0
Maximum | 2015 Reorganization and Restructuring
Restructuring Cost and Reserve [Line Items]
Positions eliminated across the global workforce | employee			1,300
Expected cost savings			$ 30.0
Maximum | 2014 Reorganization and Restructuring
Restructuring Cost and Reserve [Line Items]
Expected cost savings							50.0
Latin American And EMEA Regions | 2014 Reorganization and Restructuring
Restructuring Cost and Reserve [Line Items]
Positions eliminated across the global workforce | employee		1,700
Severance Costs | 2015 Reorganization and Restructuring
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance	$ 6.3		6.3
Expense (benefit)			2.6
Payments and utilization			(3.0)
Foreign currency exchange effects			0.0
Restructuring Reserve, ending balance			5.9	6.3			6.3
Severance Costs | 2014 Reorganization and Restructuring
Restructuring Reserve [Roll Forward]
Cumulative pretax charges		$ 21.8		24.0			24.0
Severance Costs | Minimum | Executive Leadership and Board of Directors Restructuring
Restructuring Reserve [Roll Forward]
Cumulative pretax charges			2.0
Severance Costs | Maximum | Executive Leadership and Board of Directors Restructuring
Restructuring Reserve [Roll Forward]
Cumulative pretax charges			4.0
Severance Costs | Director | Executive Leadership and Board of Directors Restructuring
Restructuring Cost and Reserve [Line Items]
Reorganization and Restructuring			3.2	1.8
Positions eliminated across the global workforce | director	2
Restructuring Reserve [Roll Forward]
Restructuring Reserve, ending balance			4.3
Contract and Lease Terminations | 2015 Reorganization and Restructuring
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance	$ 0.0		0.0
Expense (benefit)			0.2
Payments and utilization			0.0
Foreign currency exchange effects			0.0
Restructuring Reserve, ending balance			$ 0.2	$ 0.0			$ 0.0