DEFINED BENEFIT RETIREMENT PLAN (Details) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013 USD ($) item	Dec. 28, 2013 GBP (£)	Dec. 29, 2012 USD ($)	Dec. 31, 2011 USD ($)
DEFINED BENEFIT RETIREMENT PLAN
Pension retirement benefits to qualified employees as percent of final salary per year of service	1.67%	1.67%
Eligibility age	65 years	65 years
Active members of defined benefit retirement income plan	0	0
Foreign currency exchange rate used to translate the net pension liability	1.6469		1.6121
Change in Projected Benefit Obligation
Beginning balance	$ 597,767		$ 492,519
Interest cost	26,431		23,445
Settlements	(12,981)
Benefits paid	(11,573)		(11,722)
Actuarial loss	37,235		69,859
Currency translation	14,978		23,666
Ending balance	651,857		597,767
Plan Assets
Fair value beginning balance	485,724		424,495
Employer contributions	17,619		11,591
Actual return on plan assets	7,676		41,345
Settlements	(12,981)
Benefits paid	(11,573)		(11,722)
Currency translation	10,995		20,015
Fair Value ending balance	497,460		485,724
Funded status
Funded status	(154,397)		(112,043)	(68,024)
Accumulated other comprehensive income (loss)
Balance at the beginning of the period	12,617		60,014
Actuarial loss	(49,421)		(48,524)
Currency translation gain (loss)	(2,004)		1,127
Balance at the end of the period	(38,808)		12,617
The estimated amount to be amortized from accumulated other comprehensive income into net periodic benefit cost in 2014	0
Weighted average actuarial assumptions used to determine the benefit obligation
Discount rate (as a percent)	4.45%	4.45%	4.60%
CPI index (as a percent)	2.70%	2.70%	2.70%
RPI Inflation (as a percent)	3.60%	3.60%	3.20%
Net periodic benefit expense:
Interest cost	26,431		23,445
Expected return on plan assets	(19,862)		(19,168)
Net periodic benefit expense	6,569		4,277
Weighted average actuarial assumptions used to determine expense
Discount rate (as a percent)	4.60%	4.60%	4.80%
Expected return on plan assets (as a percent)	4.20%	4.20%	4.40%
RPI index (as a percent)	3.20%	3.20%	3.20%
CPI index (as a percent)	2.70%	2.70%	2.30%
Limit on employer contributions per annum	16,469	10,000
Administrative costs of the Plan	1,812	1,100
Expected pension benefit payments
2014	12,681
2015	13,175
2016	13,669
2017	14,163
2018-2022	$ 76,087
Weighted average maturity period of corporate bond portfolio	13 years	13 years