Restructuring (Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 0.2		$ 24.1
Other Restructuring Costs	0.6
Restructuring Charges	0.8	$ 0.0
Restructuring and Related Cost, Expected Cost Remaining	16.7
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	2.3
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility Consolidation Costs	14.4
Fluid Handling [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	0.1
Other Restructuring Costs	0.3
Restructuring Charges	0.4
Restructuring and Related Cost, Expected Cost Remaining	11.7
Fluid Handling [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0.1
Fluid Handling [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0.3
Payment and Merchandising Technologies [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	0.1
Other Restructuring Costs	0.1
Restructuring Charges	0.2
Restructuring and Related Cost, Expected Cost Remaining	1.3
Payment and Merchandising Technologies [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0.1
Payment and Merchandising Technologies [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0.1
Aerospace and Electronics [Member]
Restructuring Cost and Reserve [Line Items]
Other Restructuring Costs	0.2
Restructuring Charges	0.2
Restructuring and Related Cost, Expected Cost Remaining	3.7
Aerospace and Electronics [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0.0
Aerospace and Electronics [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0.2
ExpectedRestructuringCostsin2018 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	10.6
ExpectedRestructuringCostsin2018 [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	3.3
ExpectedRestructuringCostsin2018 [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility Consolidation Costs	7.3
ExpectedRestructuringCostsin2018 [Member] | Fluid Handling [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	5.5
ExpectedRestructuringCostsin2018 [Member] | Payment and Merchandising Technologies [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	4.5
ExpectedRestructuringCostsin2018 [Member] | Aerospace and Electronics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0.6
ExpectedRestructuringCostsin2019 [Member] [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	4.5
ExpectedRestructuringCostsin2019 [Member] [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Netgainonrestructuring	(1.0)
ExpectedRestructuringCostsin2019 [Member] [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility Consolidation Costs	5.5
ExpectedRestructuringCostsin2019 [Member] [Member] | Fluid Handling [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	4.6
ExpectedRestructuringCostsin2019 [Member] [Member] | Payment and Merchandising Technologies [Member]
Restructuring Cost and Reserve [Line Items]
Netgainonrestructuring	(3.2)
ExpectedRestructuringCostsin2019 [Member] [Member] | Aerospace and Electronics [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	3.1
ExpectedRestructuringCostsin2020[Member] [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	1.6
ExpectedRestructuringCostsin2020[Member] [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	0.0
ExpectedRestructuringCostsin2020[Member] [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility Consolidation Costs	1.6
ExpectedRestructuringCostsin2020[Member] [Member] | Fluid Handling [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	1.6
cumulative [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	24.3
Other Restructuring Costs	0.6
Restructuring Charges	24.9
cumulative [Member] | Fluid Handling [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	10.7
Other Restructuring Costs	0.3
Restructuring Charges	11.0
cumulative [Member] | Payment and Merchandising Technologies [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	12.3
Other Restructuring Costs	0.1
Restructuring Charges	12.4
cumulative [Member] | Aerospace and Electronics [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	1.3
Other Restructuring Costs	0.2
Restructuring Charges	$ 1.5