Income Taxes (Reconciliation of Beginning and Ending Amount of Uncertain Tax Positions Excluding Interest and Penalties) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2013	Dec. 28, 2012	Dec. 30, 2011
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Beginning balance	$ 4.1	$ 14.6	$ 14.2
Gross decreases - tax position in prior period	(0.2)	(1.2)	0
Gross increases - current-period tax positions	1.4	0.5	5.3
Settlements	(2.3)	(2.4)	(3.4)
Lapse of statute of limitations	0	(7.6)	(0.6)
Foreign exchange	0	0.2	(0.9)
Ending balance	$ 3.0	$ 4.1	$ 14.6