Restructuring (Summary of Restructuring Charges) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020 USD ($) leaseFacility	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Severance	$ 29.2	$ 12.5	$ 7.8
Other	(3.1)	(5.0)	0.6
Total	$ 32.3	17.5	7.2
Number of exit leased facilities | leaseFacility	3
Severance
Restructuring Cost and Reserve [Line Items]
Total	$ 26.7	13.3
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Total	3.3	4.8
Fluid Handling
Restructuring Cost and Reserve [Line Items]
Total	6.1	10.5	6.1
Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Total	19.1	7.4	2.1
Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Total	6.5	(0.4)	(1.0)
Engineered Materials
Restructuring Cost and Reserve [Line Items]
Total	0.6	0.0	0.0
2020 Repositioning Actions
Restructuring Cost and Reserve [Line Items]
Severance	27.5	0.0	0.0
Other	(4.6)	0.0	0.0
Total	32.1	0.0	0.0
2020 Repositioning Actions | Severance
Restructuring Cost and Reserve [Line Items]
Total	23.3	0.0
2020 Repositioning Actions | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Total	4.6	0.0
2020 Repositioning Actions | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance	3.8	0.0	0.0
Other	0.0	0.0	0.0
Total	3.8	0.0	0.0
2020 Repositioning Actions | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	16.6	0.0	0.0
Other	(4.6)	0.0	0.0
Total	21.2	0.0	0.0
2020 Repositioning Actions | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Severance	6.5	0.0	0.0
Other	0.0	0.0	0.0
Total	6.5	0.0	0.0
2020 Repositioning Actions | Engineered Materials
Restructuring Cost and Reserve [Line Items]
Severance	0.6	0.0	0.0
Other	0.0	0.0	0.0
Total	0.6	0.0	0.0
2017 Repositioning Actions
Restructuring Cost and Reserve [Line Items]
Severance	(4.7)	0.9	6.2
Other	1.5	(1.4)	0.6
Total	(6.2)	2.3	5.6
2017 Repositioning Actions | Severance
Restructuring Cost and Reserve [Line Items]
Total	3.1	11.6
2017 Repositioning Actions | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Total	(1.3)	1.2
2017 Repositioning Actions | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance	(3.8)	0.6	6.1
Other	0.0	0.0	0.0
Total	(3.8)	0.6	6.1
2017 Repositioning Actions | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	(0.9)	0.3	0.1
Other	1.5	(1.8)	(0.4)
Total	(2.4)	2.1	0.5
2017 Repositioning Actions | Aerospace & Electronics
Restructuring Cost and Reserve [Line Items]
Severance	0.0	0.0	0.0
Other	0.0	0.4	1.0
Total	0.0	(0.4)	(1.0)
Acquisition-Related Restructuring
Restructuring Cost and Reserve [Line Items]
Severance	0.0	1.7	1.6
Other	0.0	(3.6)	0.0
Total	0.0	5.3	1.6
Acquisition-Related Restructuring | Severance
Restructuring Cost and Reserve [Line Items]
Total	0.3	0.0
Acquisition-Related Restructuring | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Total	0.0	0.0
Acquisition-Related Restructuring | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	0.0	1.7	1.6
Other	0.0	(3.6)	0.0
Total	0.0	5.3	1.6
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Severance	0.3	0.0	0.0
Other	0.0	0.0	0.0
Total	0.3	0.0	0.0
Other Restructuring | Payment & Merchandising Technologies
Restructuring Cost and Reserve [Line Items]
Severance	0.3	0.0	0.0
Other	0.0	0.0	0.0
Total	0.3	0.0	0.0
2019 Repositioning Actions
Restructuring Cost and Reserve [Line Items]
Severance	6.1	9.9	0.0
Other	0.0	0.0	0.0
Total	6.1	9.9	0.0
2019 Repositioning Actions | Severance
Restructuring Cost and Reserve [Line Items]
Total	0.0	0.0
2019 Repositioning Actions | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Total	0.0	0.0
2019 Repositioning Actions | Fluid Handling
Restructuring Cost and Reserve [Line Items]
Severance	6.1	9.9	0.0
Other	0.0	0.0	0.0
Total	$ 6.1	$ 9.9	$ 0.0