Restructuring (Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1.6	$ (0.6)	$ 4.5	$ 0.2	$ 7.2
2017Repositioning [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs			1.0
Other restructuring costs			0.7
Restructuring charges			1.7
Restructuring and related cost, expected cost remaining	5.5		5.5
2017Repositioning [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.0		1.0
2017Repositioning [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility consolidation costs	4.5		4.5
2017Repositioning [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance costs			0.8
Other restructuring costs			0.0
Restructuring charges			0.8
Restructuring and related cost, expected cost remaining	2.6		2.6
2017Repositioning [Member] | Fluid Handling | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			0.8
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			0.2
Other restructuring costs			0.8
Restructuring charges			1.0
Restructuring and related cost, expected cost remaining	0.5		0.5
2017Repositioning [Member] | Payment & Merchandising Technologies | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			0.2
2017Repositioning [Member] | Payment & Merchandising Technologies | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges			0.8
2017Repositioning [Member] | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Other restructuring costs			(0.1)
Restructuring charges			(0.1)
Restructuring and related cost, expected cost remaining	2.4		2.4
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] | ExpectedRestructuringCostsin2019 [Member] [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	3.9		3.9
2017Repositioning [Member] | ExpectedRestructuringCostsin2019 [Member] [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.0		1.0
2017Repositioning [Member] | ExpectedRestructuringCostsin2019 [Member] [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility consolidation costs	2.9		2.9
2017Repositioning [Member] | ExpectedRestructuringCostsin2019 [Member] [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.0		1.0
2017Repositioning [Member] | ExpectedRestructuringCostsin2019 [Member] [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0.5		0.5
2017Repositioning [Member] | ExpectedRestructuringCostsin2019 [Member] [Member] | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	2.4		2.4
2017Repositioning [Member] | ExpectedRestructuringCostsin2020[Member] [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.6		1.6
2017Repositioning [Member] | ExpectedRestructuringCostsin2020[Member] [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	0.0		0.0
2017Repositioning [Member] | ExpectedRestructuringCostsin2020[Member] [Member] | Facility Closing [Member]
Restructuring Cost and Reserve [Line Items]
Facility consolidation costs	1.6		1.6
2017Repositioning [Member] | ExpectedRestructuringCostsin2020[Member] [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost remaining	1.6		1.6
2017Repositioning [Member] | cumulative [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs			31.3
Other restructuring costs			0.1
Restructuring charges			31.4
2017Repositioning [Member] | cumulative [Member] | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance costs			17.5
Other restructuring costs			0.0
Restructuring charges			17.5
2017Repositioning [Member] | cumulative [Member] | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance costs			12.5
Other restructuring costs			1.2
Restructuring charges			13.7
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
Acquisition-Related Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Severance costs	0.2		0.4
Other restructuring costs	0.4		2.4
Restructuring charges	0.6		2.8		$ 1.6
Restructuring and related cost, expected cost remaining	$ 0.5		$ 0.5