Restructuring (Restructuring Reserve) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 24.1
Restructuring Charges	0.8	$ 0.0
Payments for Restructuring	(2.0)
Restructuring Reserve	22.9
Fluid Handling [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	10.6
Restructuring Charges	0.4
Payments for Restructuring	(1.0)
Restructuring Reserve	10.0
Fluid Handling [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	10.6
Restructuring Charges	0.1
Payments for Restructuring	(0.8)
Restructuring Reserve	9.9
Fluid Handling [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0
Restructuring Charges	0.3
Payments for Restructuring	(0.2)
Restructuring Reserve	0.1
Payment and Merchandising Technologies [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	12.2
Restructuring Charges	0.2
Payments for Restructuring	(0.5)
Restructuring Reserve	11.9
Payment and Merchandising Technologies [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	12.2
Restructuring Charges	0.1
Payments for Restructuring	(0.4)
Restructuring Reserve	11.9
Payment and Merchandising Technologies [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0
Restructuring Charges	0.1
Payments for Restructuring	(0.1)
Restructuring Reserve	0.0
Aerospace and Electronics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1.3
Restructuring Charges	0.2
Payments for Restructuring	(0.5)
Restructuring Reserve	1.0
Aerospace and Electronics [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	1.3
Restructuring Charges	0.0
Payments for Restructuring	(0.3)
Restructuring Reserve	1.0
Aerospace and Electronics [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0
Restructuring Charges	0.2
Payments for Restructuring	(0.2)
Restructuring Reserve	$ 0.0