Segment Results (Schedule Of Financial Information By Reportable Segment) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Operating profit (loss) from continuing operations
Net sales	$ 673.4	$ 660.0
Operating profit (loss)	96.6	85.5
Interest income	0.5	0.5
Interest expense	(9.0)	(9.1)
Miscellaneous - net	(0.2)	(0.3)
Income before income taxes	87.9	76.6
Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	239.6	248.0
Operating profit (loss)	27.1	25.4
Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	195.5	172.0
Operating profit (loss)	39.1	28.0
Engineered Materials
Operating profit (loss) from continuing operations
Net sales	74.9	68.3
Operating profit (loss)	14.0	13.7
Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	163.4	171.7
Operating profit (loss)	32.1	33.1
Corporate
Operating profit (loss) from continuing operations
Operating profit (loss)	(15.7)	(14.7)
Commercial Valves [Member] | Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	69.5	72.4
Other Products [Member] | Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	21.5	20.6
Outside [Member] | Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	239.6	248.0
Outside [Member] | Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	195.5	172.0
Outside [Member] | Engineered Materials
Operating profit (loss) from continuing operations
Net sales	74.9	68.3
Outside [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	163.4	171.7
Payment Acceptance and Dispensing Products [Member] [Member] | Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	145.9	117.7
Merchandising Equipment [Member] | Payment and Merchandising Technologies [Member]
Operating profit (loss) from continuing operations
Net sales	49.6	54.3
Commercial Original Equipment [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	82.5	90.0
Military and Other Original Equipment [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	38.0	40.6
Commercial Aftermarket Products [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	32.1	30.4
Military Aftermarket Products [Member] | Aerospace and Electronics [Member]
Operating profit (loss) from continuing operations
Net sales	10.8	10.7
FRP - Recreational Vehicles [Member] | Engineered Materials
Operating profit (loss) from continuing operations
Net sales	41.6	35.2
FRP - Building Products [Member] | Engineered Materials
Operating profit (loss) from continuing operations
Net sales	24.5	22.5
FRP - Transportation [Member] | Engineered Materials
Operating profit (loss) from continuing operations
Net sales	8.8	10.6
Process Valves and Related Products [Member] | Fluid Handling [Member]
Operating profit (loss) from continuing operations
Net sales	$ 148.6	$ 155.0