Provision for Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Aug. 30, 2012	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2012	Aug. 31, 2011
Reconciliation of Provision of Income Taxes [Line Items]
Effective tax rate		22.00%	33.00%	20.00%	25.00%
Tax provision related to foreign tax credit	$ 1.6			$ 3.1
Tax expense to adjust taxes provided for the prior year			0.6
Tax expense related to a reduction of U.K. deferred tax assets			0.6
Tax benefit primarily related to expiration of statute of limitation					3.2
Forecasted annual tax rate				17.00%	27.00%
Decrease in deferred tax assets from research and development credit carry forwards due to election of single sales factor apportionment for California state taxation				10.0
Increase in gross unrecognized tax benefits		3.5
Gross unrecognized tax benefits		51.7		51.7
Amount of unrecognized tax benefit that would benefit tax expense if realized		$ 32.1		$ 32.1
Foreign jurisdictions statutes of limitations		Three to six years
Minimum
Reconciliation of Provision of Income Taxes [Line Items]
Foreign jurisdictions statutes of limitations, year		3 years
Maximum
Reconciliation of Provision of Income Taxes [Line Items]
Foreign jurisdictions statutes of limitations, year		6 years