Goodwill And Intangible Assets (Changes To Goodwill) (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2021 USD ($)
Goodwill [Line Items]
Balance at beginning of period	$ 1,437.7
Adjustments to purchase price allocations	(0.1)
Currency translation	(19.7)
Balance at end of period	1,417.9
Aerospace & Electronics
Goodwill [Line Items]
Balance at beginning of period	202.5
Adjustments to purchase price allocations	0.0
Currency translation	0.0
Balance at end of period	202.5
Process Flow Technologies
Goodwill [Line Items]
Balance at beginning of period	360.0
Adjustments to purchase price allocations	(0.1)
Currency translation	(7.7)
Balance at end of period	352.2
Payment & Merchandising Technologies
Goodwill [Line Items]
Balance at beginning of period	875.2
Adjustments to purchase price allocations	0.0
Currency translation	(12.0)
Balance at end of period	$ 863.2