Accumulated Other Comprehensive (Loss) Income - Reclassifications Out of Accumulated Other Comprehensive (Loss) Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ 478.2	$ 510.6	$ 1,414.4	$ 1,504.5
Total before taxes			34.7	54.4
Tax (expense) or benefit	(0.1)	(1.2)	(2.3)	(5.5)
Net income	13.3	15.8	32.4	48.9
Gains and Losses on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	(0.1)	0.3	(0.5)	0.4
Reclassification Out of Accumulated Other Comprehensive (Loss) Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net income	0.2		(0.3)
Reclassification Out of Accumulated Other Comprehensive (Loss) Income [Member] | Gains and Losses on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before taxes	0.1		0.3
Tax (expense) or benefit
Net income	0.1		0.3
Reclassification Out of Accumulated Other Comprehensive (Loss) Income [Member] | Pension Benefit Plan Items [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Prior-service costs	0.1		(0.2)
Actuarial adjustments			(0.1)
Actuarial gains/(losses)			(0.1)
Total before taxes	0.1		(0.4)
Tax (expense) or benefit			(0.2)
Net income	0.1		(0.6)
Reclassification Out of Accumulated Other Comprehensive (Loss) Income [Member] | Foreign Currency Hedges [Member] | Gains and Losses on Derivative Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Cost of sales	$ 0.1		$ 0.3