Accumulated Other Comprehensive Income Net of Tax (Detail) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 28, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 28, 2012	$ 99.0
Amounts reclassified from other comprehensive income	(2.0)
Other comprehensive (loss) gain	(9.8)
Net other comprehensive loss	(11.8)
Balance at June 28, 2013	87.2
Unrealized Net Gain (Loss) on Available-for-Sale Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 28, 2012	2.4
Amounts reclassified from other comprehensive income	(2.0)
Other comprehensive (loss) gain	(3.3)
Net other comprehensive loss	(5.3)
Balance at June 28, 2013	(2.9)
Unrealized Net Gain (Loss) on Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 28, 2012
Other comprehensive (loss) gain	0.7
Net other comprehensive loss	0.7
Balance at June 28, 2013	0.7
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 28, 2012	94.9
Other comprehensive (loss) gain	(7.2)
Net other comprehensive loss	(7.2)
Balance at June 28, 2013	87.7
Unrecognized Prior Service Cost
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 28, 2012	(0.1)
Amounts reclassified from other comprehensive income
Balance at June 28, 2013	(0.1)
Unrecognized Net Gain on Retiree Medical Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 28, 2012	1.8
Amounts reclassified from other comprehensive income
Balance at June 28, 2013	$ 1.8