Deferred Tax Assets and Liabilities By Jurisdiction (Detail) (USD $) In Millions, unless otherwise specified	Dec. 30, 2012	Dec. 25, 2011
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	$ 17.0	$ 5.8
U S
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	(25.9)	(23.9)
Europe
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	1.1	0.6
Japan
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	0.5	0.8
China
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	9.9	8.0
Hong Kong
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	1.5	2.3
Malaysia
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	(1.3)	(1.9)
Singapore
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	0.2	0.1
Korea
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	30.2	20.6
Taiwan
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	0.3	(0.1)
Sweden
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)		(1.3)
Foreign-Other
Deferred Taxes Classification [Line Items]
Net deferred tax assets (liabilities)	$ 0.5	$ 0.6