Derivative Instruments and Hedging Activities - Effective Portion of Foreign Currency Forward Contracts Designated as Cash Flow Hedges (Detail) (Foreign currency forward contracts, USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 03, 2015	Mar. 28, 2014	Apr. 03, 2015	Mar. 28, 2014
Foreign currency forward contracts
Derivative [Line Items]
Gain (Loss) Recognized in Other Comprehensive Income (Effective Portion)	$ 1.2	$ (1.1)	$ 2.0	$ 2.1
Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Net Earnings (Effective Portion)	$ 1.8	$ 1.7	$ 2.7	$ 1.3