Summary of Restructuring and Impairment Costs (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Dec. 25, 2011
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning balance	$ 4.1	$ 2.7	$ 11.0
New Charges	16.3	14.6	11.6
Cash Paid	(14.2)	(12.7)	(11.1)
Reserve Release	(0.4)	(0.5)	(8.8)
Non-Cash Items	(1.6)	(0.1)
Accrual Balance, Ending balance	4.2	4.1	2.7
2010 Infrastructure Realignment Program | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning balance	0.2	1.0	2.2
New Charges			3.6
Cash Paid	(0.2)	(0.7)	(4.4)
Reserve Release		(0.1)	(0.4)
Accrual Balance, Ending balance		0.2	1.0
2011 Infrastructure Realignment Program | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning balance	0.6	1.7
New Charges		1.0	5.4
Cash Paid	(0.3)	(1.7)	(3.5)
Reserve Release		(0.4)	(0.2)
Accrual Balance, Ending balance	0.3	0.6	1.7
2011 Infrastructure Realignment Program | Asset Impairment Cost
Restructuring Cost and Reserve [Line Items]
New Charges		0.1
Non-Cash Items		(0.1)
2012 Infrastructure Realignment Program | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning balance	2.8
New Charges	0.1	12.5
Cash Paid	(2.5)	(9.8)
Reserve Release	(0.2)
Accrual Balance, Ending balance	0.2	2.8
2012 Infrastructure Realignment Program | Lease Termination Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning balance	0.5
New Charges		0.6
Cash Paid	(0.3)	(0.1)
Reserve Release	(0.1)
Accrual Balance, Ending balance	0.1	0.5
2012 Infrastructure Realignment Program | Facility Closure Costs
Restructuring Cost and Reserve [Line Items]
New Charges		0.4
Cash Paid		(0.4)
2013 Infrastructure Realignment Program | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
New Charges	11.0
Cash Paid	(7.7)
Reserve Release	(0.1)
Accrual Balance, Ending balance	3.2
2013 Infrastructure Realignment Program | Lease Termination Costs
Restructuring Cost and Reserve [Line Items]
New Charges	0.6
Cash Paid	(0.2)
Accrual Balance, Ending balance	0.4
2013 Infrastructure Realignment Program | Line closure costs
Restructuring Cost and Reserve [Line Items]
New Charges	3.0
Cash Paid	(3.0)
2013 Infrastructure Realignment Program | Asset Impairment, Other
Restructuring Cost and Reserve [Line Items]
New Charges	1.6
Non-Cash Items	(1.6)
2008 Infrastructure Realignment Program | Lease Impairment Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning balance			0.7
Cash Paid			(0.7)
2009 Infrastructure Realignment Program | Employee Separation Costs
Restructuring Cost and Reserve [Line Items]
Accrual Balance, Beginning balance			8.1
New Charges			1.9
Cash Paid			(1.8)
Reserve Release			(8.2)
2009 Infrastructure Realignment Program | Facility Closure Costs
Restructuring Cost and Reserve [Line Items]
New Charges			0.7
Cash Paid			$ (0.7)