Restructuring (Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring (gain) charges, net	$ (1.2)	$ 2.9
2017 Repositioning
Restructuring Cost and Reserve [Line Items]
Gain on sale of building related to restructuring	1.5
Severance costs	0.0
Other restructuring costs	(1.5)
Restructuring (gain) charges, net	(1.5)
Restructuring and related cost, expected cost remaining	0.9
2017 Repositioning | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance costs	0.0
Other restructuring costs	0.0
Restructuring (gain) charges, net	0.0
2017 Repositioning | Fluid Handling | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring (gain) charges, net	0.0
2017 Repositioning | Fluid Handling | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring (gain) charges, net	0.0
2017 Repositioning | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance costs	0.0
Other restructuring costs	(1.5)
Restructuring (gain) charges, net	(1.5)
2017 Repositioning | Payment & Merchandising Technologies | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring (gain) charges, net	0.0
2017 Repositioning | Payment & Merchandising Technologies | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring (gain) charges, net	(1.5)
2017 Repositioning | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Severance costs	0.0
Other restructuring costs	0.0
Restructuring (gain) charges, net	0.0
2017 Repositioning | Aerospace & Electronics | Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring (gain) charges, net	0.0
2017 Repositioning | Cumulative
Restructuring Cost and Reserve [Line Items]
Severance costs	31.2
Other restructuring costs	(0.7)
Restructuring (gain) charges, net	30.5
2017 Repositioning | Cumulative | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance costs	17.3
Other restructuring costs	0.0
Restructuring (gain) charges, net	17.3
2017 Repositioning | Cumulative | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance costs	12.6
Other restructuring costs	0.7
Restructuring (gain) charges, net	13.3
2017 Repositioning | Cumulative | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Severance costs	1.3
Other restructuring costs	(1.4)
Restructuring (gain) charges, net	$ (0.1)
Acquisition-Related Restructuring | Cumulative | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance costs			$ 3.3
Other restructuring costs			3.6
Restructuring (gain) charges, net			$ 6.9