Restructuring (Summary of Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Restructuring Cost and Reserve [Line Items]
Severance	$ (0.4)	$ 0.3
Other	12.7	1.5
Total	(13.1)	(1.2)
Fluid Handling
Restructuring Cost and Reserve [Line Items]
Total	12.6	0.0
Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Total	0.5	1.2
2020 Repositioning Actions
Restructuring Cost and Reserve [Line Items]
Severance	(0.5)	0.0
Other	0.0	0.0
Total	(0.5)	0.0
2020 Repositioning Actions | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	(0.5)	0.0
Other	0.0	0.0
Total	(0.5)	0.0
2019 Repositioning Actions
Restructuring Cost and Reserve [Line Items]
Severance	0.1	0.0
Other	0.0	0.0
Total	0.1	0.0
2019 Repositioning Actions | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance	0.1	0.0
Other	0.0	0.0
Total	0.1	0.0
2017 Repositioning Actions
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.0
Other	12.7	1.5
Total	(12.7)	(1.5)
2017 Repositioning Actions | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.0
Other	12.7	0.0
Total	(12.7)	0.0
2017 Repositioning Actions | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.0
Other	0.0	1.5
Total	0.0	(1.5)
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.3
Other	0.0	0.0
Total	0.0	0.3
Other Restructuring | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.3
Other	0.0	0.0
Total	$ 0.0	$ 0.3