Retirement and Other Employee Benefits (Net Periodic Pension Cost of Defined Benefit Pension and Post-Retirement Benefit Plans) (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 30, 2011		Dec. 31, 2010		Jan. 01, 2010
Defined Benefit Plan Disclosure [Line Items]
Settlement (gain) loss					$ 3.2
UNITED STATES Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	[1]	0	[1]	0
Interest cost	0.9	[1]	0.9	[1]	0.9
Expected return on assets	(1.0)		(0.9)		(0.7)
Settlement (gain) loss	0		0		0
Net amortization	0.2		0.1		0.1
Net periodic cost (income)	0.1		0.1		0.3
Pension Plans [Member] | CENTRAL AMERICA [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic cost (income)	0.3		0.3		0.3
Pension Plans [Member] | UNITED KINGDOM [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	[1]	0	[1]	0.1
Interest cost	3.0	[1]	3.1	[1]	3.0
Expected return on assets	(2.8)		(2.4)		(1.7)
Settlement (gain) loss	0		0		0
Net amortization	0		0		(0.1)
Net periodic cost (income)	0.2		0.7		1.3
Post-retirement Plans [Member] | CENTRAL AMERICA [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	3.6		3.3		1.6
Interest cost	3.0		3.6		2.8
Expected return on assets	0		0		0
Settlement (gain) loss	0		0		1.0
Net amortization	1.2		1.0		0.4
Net periodic cost (income)	7.8		7.9		5.8
UNITED STATES Post-retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost					0
Interest cost					0.2
Expected return on assets					0
Settlement (gain) loss					(3.2)
Net amortization					(0.4)
Net periodic cost (income)					$ (3.4)

[1] The accumulated benefit obligation is the same as the projected benefit obligation.