Restructuring Restructuring Acquisition-Related Restructuring (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2014 USD ($)	Dec. 31, 2014 USD ($) employee
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 1.4	$ 2.2	$ 8.7	$ 15.5
Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			0.3		$ 10.3
Restructuring and Related Cost, Expected Number of Positions Eliminated | employee					240
Reduction Of Global Workforce Percentage					2.00%
cash-related restructuring [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			4.7		$ 10.2
non cash restructuring [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges					0.1
Payment and Merchandising Technologies [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	8.2		8.2		7.0
Restructuring Reserve, Utilization			3.5
Payment and Merchandising Technologies [Member] | Employee Severance [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	8.2		8.2		7.0
Restructuring Reserve, Utilization			3.3
Payment and Merchandising Technologies [Member] | Other Restructuring [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 0.0		0.0		$ 0.0
Restructuring Reserve, Utilization			0.2
Operating Expense [Member] | Payment and Merchandising Technologies [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			4.7
Operating Expense [Member] | Payment and Merchandising Technologies [Member] | Employee Severance [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			4.5
Operating Expense [Member] | Payment and Merchandising Technologies [Member] | Other Restructuring [Member] | Acquisition Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			$ 0.2