Commitments And Contingencies (Schedule Of Settlement And Defense Costs) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Dec. 31, 2014		Jul. 31, 2013
Loss Contingencies [Line Items]
Pre-tax cash payments	$ 10.7		$ 12.9
Asbestos Commitments and Contingencies
Loss Contingencies [Line Items]
Settlement / indemnity costs incurred (1)	7.8	[1]	7.7	[1]	25.3	[1]
Defense costs incurred (1)	10.5	[1]	12.9	[1]	55.9	[1]
Total costs incurred	18.3		20.5		81.1
Settlement / indemnity payments	5.5		6.7		27.3
Payments For Asbestos Related Defense And Related Fees Costs	8.1		11.4		57.7
Insurance receipts	2.9		5.2		23.8
Pre-tax cash payments	10.7		12.9		61.3
Holdsworth [Member] | Asbestos Commitments and Contingencies
Loss Contingencies [Line Items]
Jury Verdict Total							$ 3.1

[1] Before insurance recoveries and tax effects.