Outstanding Foreign Currency Forward Contracts that Were Entered into to Hedge Balance Sheet Exposures (Detail) (USD $) In Millions, unless otherwise specified	Sep. 26, 2014
Notional Value Sold
Derivative [Line Items]
Notional Value	$ 248.6
Notional Value Sold | Australian dollar
Derivative [Line Items]
Notional Value	20.1
Notional Value Sold | Canadian dollar
Derivative [Line Items]
Notional Value	0
Notional Value Sold | Danish Krone
Derivative [Line Items]
Notional Value	4.3
Notional Value Sold | Euro
Derivative [Line Items]
Notional Value	156.1
Notional Value Sold | Hungarian Forint
Derivative [Line Items]
Notional Value	0.8
Notional Value Sold | Indian Rupee
Derivative [Line Items]
Notional Value	2.9
Notional Value Sold | Japanese yen
Derivative [Line Items]
Notional Value	53.6
Notional Value Sold | Norwegian krone
Derivative [Line Items]
Notional Value	2.8
Notional Value Sold | Swedish krona
Derivative [Line Items]
Notional Value	8.0
Notional Value Purchased
Derivative [Line Items]
Notional Value	84.8
Notional Value Purchased | Canadian dollar
Derivative [Line Items]
Notional Value	9.6
Notional Value Purchased | Danish Krone
Derivative [Line Items]
Notional Value	0
Notional Value Purchased | Euro
Derivative [Line Items]
Notional Value	0
Notional Value Purchased | Hungarian Forint
Derivative [Line Items]
Notional Value	0
Notional Value Purchased | Indian Rupee
Derivative [Line Items]
Notional Value	0
Notional Value Purchased | Japanese yen
Derivative [Line Items]
Notional Value	0
Notional Value Purchased | Norwegian krone
Derivative [Line Items]
Notional Value	0
Notional Value Purchased | Swedish krona
Derivative [Line Items]
Notional Value	0
Notional Value Purchased | Swiss franc
Derivative [Line Items]
Notional Value	$ 75.2