DEFINED BENEFIT RETIREMENT PLAN (Details) £ in Thousands, $ in Thousands	12 Months Ended
	Dec. 30, 2023 USD ($) item $ / £	Dec. 30, 2023 GBP (£) item	Dec. 31, 2022 USD ($) $ / £	Dec. 25, 2021 USD ($)
Retirement Benefits [Abstract]
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 | item	0	0
Foreign currency exchange rate used to translate the net pension liability | $ / £	1.273		1.209
Projected Benefit Obligation
Beginning balance	$ 435,711		$ 761,706
Interest cost	$ 21,555		$ 12,551
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Interest Expense	Interest Expense	Interest Expense
Benefits paid	$ (20,683)		$ (20,175)
Actuarial (gain) loss	17,692		(248,252)
Currency translation	23,488		(70,119)
Ending balance	477,763		435,711
Plan Assets
Fair value beginning balance	459,927		761,170
Employer contributions	17,345		17,155
Actual return on plan assets	10,966		(228,493)
Benefits paid	(20,683)		(20,175)
Currency translation	25,612		(69,730)
Fair value ending balance	493,167		459,927
Funded status
Funded status	15,404		24,216	$ (536)
Accumulated other comprehensive income (loss)
Balance at the beginning of the period	(57,911)		(60,940)
Actuarial gain (loss)	(28,071)		(2,915)
Currency translation gain	(3,667)		5,451
Prior service costs amortization	498		493
Balance at the end of the period	$ (89,151)		$ (57,911)
Weighted average actuarial assumptions used to determine the benefit obligation
Discount rate for benefit obligations	4.50%		4.80%	1.90%
CPI inflation	2.25%		2.35%
RPI inflation	3.05%		3.25%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Interest cost	$ 21,555		$ 12,551
Expected return on plan assets	$ (21,804)		$ (23,131)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Amortization of prior service cost	$ 498		$ 493
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Net periodic pension benefit	$ 249		$ (10,087)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)	Other Nonoperating Income (Expense)
Weighted average actuarial assumptions used to determine expense
Discount rate for benefit obligations	4.80%	4.80%	1.90%
Discount rate for interest cost	4.90%	4.90%	1.80%
Expected return on plan assets	4.85%	4.85%	3.48%
CPI Inflation	2.35%	2.35%	2.70%
RPI Inflation	3.25%	3.25%	3.30%
Limit on employer contributions per annum	$ 16,700	£ 13,100
Administrative costs of the Plan	1,700	£ 1,300
Expected pension benefit payments
2024	21,641
2025	22,278
2026	23,042
2027	23,678
2028	24,442
Years 2028 - 2032	$ 133,540
Weighted average maturity period of corporate bond portfolio	13 years	13 years