Commitments and Contingencies (Schedule Of Settlement And Defense Costs) (Detail) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	7 Months Ended	9 Months Ended
	Aug. 11, 2022	Sep. 30, 2021	Aug. 11, 2022	Sep. 30, 2022	Sep. 30, 2021
Loss Contingencies [Line Items]
Pre-tax cash payments, net				$ 29.3	$ 29.6
Asbestos Commitments and Contingencies
Loss Contingencies [Line Items]
Settlement / indemnity costs incurred	$ 6.3	$ 10.6	$ 29.4		24.5
Defense costs incurred	1.0	3.8	6.4		11.2
Total costs incurred	7.3	14.4	35.8		35.7
Settlement / indemnity payments	6.6	8.9	33.8		28.4
Defense payments	1.1	3.9	6.1		11.3
Insurance receipts	(1.8)	(3.4)	(10.6)		(10.1)
Pre-tax cash payments, net	$ 5.9	$ 9.4	$ 29.3		$ 29.6