Goodwill And Intangible Assets (Changes To Goodwill) (Detail) - USD ($) $ in Millions	6 Months Ended	9 Months Ended	12 Months Ended
	Jun. 30, 2020	Sep. 30, 2020	Dec. 31, 2019	Dec. 31, 2018
Goodwill [Line Items]
Intangible Assets, Net (Excluding Goodwill)		$ 526.9	$ 505.1	$ 481.8
Intangibles with indefinite useful lives		70.3	69.9
Balance at beginning of period	$ 1,472.4	1,472.4	1,403.7
Goodwill, Acquired During Period		105.5	63.4
Goodwill, Purchase Accounting Adjustments		4.0
Goodwill, Foreign Currency Translation Gain (Loss)		7.9	5.3
Balance at end of period		1,589.8	1,472.4
Fluid Handling
Goodwill [Line Items]
Balance at beginning of period	240.9	240.9	240.8
Goodwill, Acquired During Period		105.5	0.0
Goodwill, Foreign Currency Translation Gain (Loss)		6.0	0.1
Balance at end of period		352.4	240.9
Payment & Merchandising Technologies
Goodwill [Line Items]
Balance at beginning of period	857.8	857.8	789.2
Goodwill, Acquired During Period	0.0		63.4
Goodwill, Purchase Accounting Adjustments		4.0
Goodwill, Foreign Currency Translation Gain (Loss)		1.9	5.2
Balance at end of period		863.7	857.8
Aerospace & Electronics
Goodwill [Line Items]
Balance at beginning of period	202.4	202.4	202.4
Goodwill, Acquired During Period		0.0	0.0
Goodwill, Foreign Currency Translation Gain (Loss)		0.0	0.0
Balance at end of period		202.4	202.4
Engineered Materials
Goodwill [Line Items]
Balance at beginning of period	$ 171.3	171.3	171.3
Goodwill, Acquired During Period		0.0	0.0
Goodwill, Foreign Currency Translation Gain (Loss)		0.0	0.0
Balance at end of period		$ 171.3	$ 171.3