Reorganization and Restructuring (Details)	1 Months Ended	3 Months Ended	9 Months Ended
	Dec. 31, 2014 USD ($) employee	Sep. 30, 2015 USD ($) employee	Sep. 30, 2015 USD ($)
2015 Reorganization and Restructuring
Restructuring Charges [Abstract]
Reorganization and Restructuring		$ 2,000,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance			$ 0
Expense (benefit)			2,000,000
Payments and utilization			(200,000)
Foreign currency exchange effects			0
Restructuring Reserve, ending balance	$ 0	$ 1,800,000	1,800,000
2015 Reorganization and Restructuring | Minimum
Restructuring Cost and Reserve [Line Items]
Positions eliminated across the global workforce | employee		1,000
Expected cost savings		$ 25,000,000
Restructuring Charges [Abstract]
Cumulative pretax charges		$ 8,000,000	8,000,000
2015 Reorganization and Restructuring | Maximum
Restructuring Cost and Reserve [Line Items]
Positions eliminated across the global workforce | employee		1,200
Expected cost savings		$ 35,000,000
Restructuring Charges [Abstract]
Cumulative pretax charges		12,000,000	12,000,000
2015 Reorganization and Restructuring | Severance Costs
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance			0
Expense (benefit)			300,000
Payments and utilization			0
Foreign currency exchange effects			0
Restructuring Reserve, ending balance	0	300,000	300,000
2015 Reorganization and Restructuring | Contract and Lease Terminations
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance			0
Expense (benefit)			1,500,000
Payments and utilization			0
Foreign currency exchange effects			0
Restructuring Reserve, ending balance	0	1,500,000	1,500,000
2015 Reorganization and Restructuring | Impairments
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance			0
Expense (benefit)			200,000
Payments and utilization			(200,000)
Foreign currency exchange effects			0
Restructuring Reserve, ending balance	0	0	0
2014 Reorganization and Restructuring
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance			21,400,000
Expense (benefit)			1,200,000
Payments and utilization			(17,700,000)
Foreign currency exchange effects			(1,100,000)
Restructuring Reserve, ending balance	21,400,000	3,800,000	3,800,000
2014 Reorganization and Restructuring | Severance Costs
Restructuring Charges [Abstract]
Cumulative pretax charges	23,000,000
Reversal of severance costs			(100,000)
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance			21,400,000
Expense (benefit)			(100,000)
Payments and utilization			(16,900,000)
Foreign currency exchange effects			(1,100,000)
Restructuring Reserve, ending balance	21,400,000	3,300,000	3,300,000
2014 Reorganization and Restructuring | Contract and Lease Terminations
Restructuring Charges [Abstract]
Reorganization and Restructuring			1,300,000
Restructuring Reserve [Roll Forward]
Restructuring Reserve, beginining balance			0
Expense (benefit)			1,300,000
Payments and utilization			(800,000)
Foreign currency exchange effects			0
Restructuring Reserve, ending balance	0	$ 500,000	$ 500,000
2014 Reorganization and Restructuring | Reduced Direct Costs | Minimum
Restructuring Cost and Reserve [Line Items]
Annual direct costs savings	45,000,000
2014 Reorganization and Restructuring | Reduced Direct Costs | Maximum
Restructuring Cost and Reserve [Line Items]
Annual direct costs savings	$ 50,000,000
Latin American And EMEA Regions | 2014 Reorganization and Restructuring
Restructuring Cost and Reserve [Line Items]
Positions eliminated across the global workforce | employee	1,700