Restructuring and Other Expense - Schedule of Restructuring Reserve Activity (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Restructuring Reserve [Roll Forward]
Charges	$ 0.8	$ 0.6
2012 Global Processing Improvement Restructuring Program
Restructuring Reserve [Roll Forward]
Accrued balance, beginning	1.3
Charges	0.5
Usage and payments	(0.9)
Accrued balance, ending	0.9
Severance and Related
Restructuring Reserve [Roll Forward]
Charges	0.2
Severance and Related | 2012 Global Processing Improvement Restructuring Program
Restructuring Reserve [Roll Forward]
Accrued balance, beginning	0.8
Charges	0.3
Usage and payments	(0.6)
Accrued balance, ending	0.5
Lease Termination Costs | 2012 Global Processing Improvement Restructuring Program
Restructuring Reserve [Roll Forward]
Accrued balance, beginning	0.3
Charges	0
Usage and payments	(0.1)
Accrued balance, ending	0.2
Other
Restructuring Reserve [Roll Forward]
Charges	0.1
Other | 2012 Global Processing Improvement Restructuring Program
Restructuring Reserve [Roll Forward]
Accrued balance, beginning	0.2
Charges	0.2
Usage and payments	(0.2)
Accrued balance, ending	$ 0.2