Restructuring (Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 2.9	$ 0.8	$ 7.2
Restructuring and related cost, expected cost remaining	8.9
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.0
Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility consolidation costs	7.9
Fluid Handling
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	5.1
Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.1
Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2.7
ExpectedRestructuringCostsin2019 [Member] [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	7.3
ExpectedRestructuringCostsin2019 [Member] [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.0
ExpectedRestructuringCostsin2019 [Member] [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility consolidation costs	6.3
ExpectedRestructuringCostsin2019 [Member] [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	3.5
ExpectedRestructuringCostsin2019 [Member] [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.1
ExpectedRestructuringCostsin2019 [Member] [Member] | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2.7
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
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.6
2017Repositioning [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	0.6
Other restructuring costs	0.1
Restructuring charges	0.7
2017Repositioning [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance costs	0.6
Other restructuring costs	0.0
Restructuring charges	0.6
2017Repositioning [Member] | Fluid Handling | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.6
2017Repositioning [Member] | Fluid Handling | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.0
2017Repositioning [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance costs	0.0
Other restructuring costs	0.2
Restructuring charges	0.2
2017Repositioning [Member] | Payment & Merchandising Technologies | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.0
2017Repositioning [Member] | Payment & Merchandising Technologies | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.2
2017Repositioning [Member] | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Other restructuring costs	(0.1)
Restructuring charges	(0.1)
2017Repositioning [Member] | Aerospace & Electronics | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.0
2017Repositioning [Member] | Aerospace & Electronics | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(0.1)
2017Repositioning [Member] | cumulative [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	30.9
Other restructuring costs	(0.5)
Restructuring charges	30.4
2017Repositioning [Member] | cumulative [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance costs	17.3
Other restructuring costs	0.0
Restructuring charges	17.3
2017Repositioning [Member] | cumulative [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance costs	12.3
Other restructuring costs	0.6
Restructuring charges	12.9
2017Repositioning [Member] | cumulative [Member] | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Severance costs	1.3
Other restructuring costs	(1.1)
Restructuring charges	$ 0.2