Segment Information (Schedule Of Consolidated Financial Statements By Industry Segments) (Details) $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting Information [Line Items]
Number of reporting segments \| segment	4
Net sales	$ 2,936.9	$ 3,283.1	$ 3,345.5
Operating profit from continuing operations	262.9	210.4	441.3
Assets	4,588.9	4,423.7	4,042.7
Goodwill	1,609.0	1,472.4	1,403.7
Capital expenditures	34.1	68.8	108.8
Depreciation and amortization	127.5	113.5	120.0
Asbestos provision, net	0.0	(229.0)	0.0
Environmental provision, net	0.0	(18.9)	0.0
Interest income	2.0	2.7	2.3
Interest expense	(55.3)	(46.8)	(50.9)
Miscellaneous income	14.9	4.4	18.7
Income before income taxes	224.5	170.7	411.4
Operating Segments
Segment Reporting Information [Line Items]
Operating profit from continuing operations	321.7	525.2	506.8
Assets	4,132.6	4,102.7	3,778.6
Goodwill		1,472.4	1,403.7
Capital expenditures	34.0	68.4	108.3
Depreciation and amortization	125.4	110.4	117.0
Corporate
Segment Reporting Information [Line Items]
Operating profit from continuing operations	(58.8)	(66.9)	(65.5)
Assets	456.3	321.0	264.1
Capital expenditures	0.1	0.4	0.5
Depreciation and amortization	2.1	3.1	3.0
Asbestos provision, net		(229.0)
Environmental provision, net		(18.9)
Fluid Handling
Segment Reporting Information [Line Items]
Operating profit from continuing operations	97.7	131.7	118.8
Assets	1,106.1	941.6	878.2
Goodwill	360.0	240.9	240.8
Capital expenditures	13.7	23.4	19.9
Depreciation and amortization	21.6	14.2	15.2
Fluid Handling \| Outside
Segment Reporting Information [Line Items]
Net sales	1,005.8	1,117.4	1,101.8
Payment & Merchandising Technologies
Segment Reporting Information [Line Items]
Operating profit from continuing operations	100.6	177.3	186.0
Assets	2,215.3	2,303.4	2,074.4
Goodwill	875.2	857.8	789.2
Capital expenditures	9.3	20.6	57.5
Depreciation and amortization	85.9	77.1	82.4
Payment & Merchandising Technologies \| Outside
Segment Reporting Information [Line Items]
Net sales	1,104.8	1,158.3	1,257.0
Aerospace & Electronics
Segment Reporting Information [Line Items]
Operating profit from continuing operations	100.7	189.4	164.2
Assets	593.9	638.1	603.9
Goodwill	202.5	202.4	202.4
Capital expenditures	9.8	20.0	20.6
Depreciation and amortization	14.2	13.5	13.0
Aerospace & Electronics \| Outside
Segment Reporting Information [Line Items]
Net sales	650.7	798.8	743.5
Engineered Materials
Segment Reporting Information [Line Items]
Operating profit from continuing operations	22.7	26.8	37.8
Assets	217.3	219.6	222.1
Goodwill	171.3	171.3	171.3
Capital expenditures	1.2	4.4	10.3
Depreciation and amortization	3.7	5.6	6.4
Engineered Materials \| Outside
Segment Reporting Information [Line Items]
Net sales	$ 175.6	$ 208.6	$ 243.2

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