Fair Value Measurements (Summary Of Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Detail) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives Assets	$ 0.3	$ 0.0
Derivatives Liabilities	0.4
Fair Value, Measurements, Recurring | Foreign Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives Assets		0.0
Derivatives Liabilities		0.4
Fair Value, Measurements, Recurring | Foreign Exchange Contract [Member] | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivatives Assets	0.3	0.0
Derivatives Liabilities	$ 0.4	$ 0.4