Segment Results (Schedule Of Financial Information By Reportable Segment) (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Operating profit (loss) from continuing operations
Net sales	$ 851.0	$ 702.5	$ 1,650.0	$ 1,375.9
Operating profit (loss)	113.0	105.8	207.3	199.0
Interest income	0.4	0.6	1.2	1.1
Interest expense	(12.8)	(9.0)	(27.5)	(18.0)
Miscellaneous - net	4.3	2.3	8.3	5.6
Income before income taxes	104.9	99.7	189.3	187.7
Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	276.9	263.8	543.5	503.4
Operating profit (loss)	29.5	29.1	57.6	53.5
Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	324.3	198.2	616.7	393.7
Operating profit (loss)	46.1	41.9	82.6	80.3
Engineered Materials
Operating profit (loss) from continuing operations
Net sales	62.6	69.4	132.3	144.3
Operating profit (loss)	11.2	13.3	23.7	27.2
Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	187.2	171.1	357.5	334.5
Operating profit (loss)	43.3	37.6	77.5	69.4
Corporate
Operating profit (loss) from continuing operations
Operating profit (loss)	(17.1)	(16.1)	(34.1)	(31.4)
Commercial Valves [Member] | Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	79.2	75.0	159.7	144.5
Other Products [Member] | Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	22.3	23.0	43.4	44.4
Outside [Member] | Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	276.9	263.8	543.5	503.4
Outside [Member] | Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	324.3	198.2	616.7	393.7
Outside [Member] | Engineered Materials
Operating profit (loss) from continuing operations
Net sales	62.6	69.4	132.3	144.3
Outside [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	187.2	171.1	357.5	334.5
Payment Acceptance and Dispensing Products [Member] [Member] | Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	155.3	148.6	300.7	294.5
Bank Notes and Security Products [Domain] | Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	121.6	0.0	221.4	0.0
Merchandising Equipment [Member] | Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	47.4	49.6	94.6	99.2
Commercial Original Equipment [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	86.2	87.3	170.8	169.8
Military and Other Original Equipment [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	48.7	40.9	90.7	78.9
Commercial Aftermarket Products [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	37.5	31.6	70.2	63.7
Military Aftermarket Products [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	14.8	11.3	25.8	22.1
FRP - Recreational Vehicles [Member] | Engineered Materials
Operating profit (loss) from continuing operations
Net sales	31.2	38.1	68.5	79.7
FRP - Building Products [Member] | Engineered Materials
Operating profit (loss) from continuing operations
Net sales	23.4	23.9	47.2	48.4
FRP - Transportation [Member] | Engineered Materials
Operating profit (loss) from continuing operations
Net sales	8.0	7.4	16.6	16.2
Process Valves and Related Products [Member] | Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	$ 175.4	$ 165.8	$ 340.4	$ 314.5