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Accrued Liabilities (Summary Of Warranty Liabilities) (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Disclosure Accrued Liabilities Summary Of Warranty Liabilities [Abstract]    
Balance at beginning of period $ 15.1 $ 15.5
Expense 14.5 12.1
Payments / deductions (13.4) (12.7)
Currency translation (0.7) 0.2
Balance at end of period $ 15.5 $ 15.1