Restructuring (Summary of Restructuring Charges) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Cost and Reserve [Line Items]
Severance	$ 22.8	$ 0.6	$ 23.1	$ 1.4
Other	1.0	1.0	(0.5)	3.1
Total	23.8	1.6	22.6	4.5
Fluid Handling
Restructuring Cost and Reserve [Line Items]
Total	4.7	0.2	4.7	0.8
Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Total	13.8	1.4	12.6	3.8
Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Total	4.7	0.0	4.7	(0.1)
Engineered Materials
Restructuring Cost and Reserve [Line Items]
Total	0.6	0.0	0.6	0.0
2020 Repositioning Actions
Restructuring Cost and Reserve [Line Items]
Severance	23.8	0.0	23.8	0.0
Other	1.0	0.0	1.0	0.0
Total	24.8	0.0	24.8	0.0
2020 Repositioning Actions | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance	4.7	0.0	4.7	0.0
Other	0.0	0.0	0.0	0.0
Total	4.7	0.0	4.7	0.0
2020 Repositioning Actions | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	13.8	0.0	13.8	0.0
Other	1.0	0.0	1.0	0.0
Total	14.8	0.0	14.8	0.0
2020 Repositioning Actions | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Severance	4.7	0.0	4.7	0.0
Other	0.0	0.0	0.0	0.0
Total	4.7	0.0	4.7	0.0
2020 Repositioning Actions | Engineered Materials
Restructuring Cost and Reserve [Line Items]
Severance	0.6	0.0	0.6	0.0
Other	0.0	0.0	0.0	0.0
Total	0.6	0.0	0.6	0.0
2017 Repositioning Actions
Restructuring Cost and Reserve [Line Items]
Severance	(1.0)	0.4	(1.0)	1.0
Other	0.0	0.6	(1.5)	0.7
Total	(1.0)	1.0	(2.5)	1.7
2017 Repositioning Actions | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.2	0.0	0.8
Other	0.0	0.0	0.0	0.0
Total	0.0	0.2	0.0	0.8
2017 Repositioning Actions | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	(1.0)	0.2	(1.0)	0.2
Other	0.0	0.6	(1.5)	0.8
Total	(1.0)	0.8	(2.5)	1.0
2017 Repositioning Actions | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.0	0.0	0.0
Other	0.0	0.0	0.0	(0.1)
Total	0.0	0.0	0.0	(0.1)
Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.2	0.0	0.4
Other	0.0	0.4	0.0	2.4
Total	0.0	0.6	0.0	2.8
Acquisition-Related Restructuring | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.2	0.0	0.4
Other	0.0	0.4	0.0	2.4
Total	$ 0.0	$ 0.6	0.0	2.8
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Severance			0.3	0.0
Other			0.0	0.0
Total			0.3	0.0
Other Restructuring | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance			0.3	0.0
Other			0.0	0.0
Total			$ 0.3	$ 0.0