Accrued Liabilities (Summary Of Warranty Liabilities) (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Disclosure Accrued Liabilities Summary Of Warranty Liabilities [Abstract]
Balance at beginning of period	$ 14.6	$ 15.5
Expense	14.6	13.4
Standard and Extended Product Warranty Accrual, Additions from Business Acquisition	1.1	0.1
Payments / deductions	(12.0)	(14.7)
Currency translation	(0.1)	0.3
Balance at end of period	$ 18.2	$ 14.6