PENSION AND OTHER POSTRETIREMENT BENEFITS - Schedule of Defined Benefit Plan Obligations and Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 27, 2022	Mar. 28, 2021	Dec. 26, 2021	Dec. 27, 2020
Change in plan assets:
Fair value of plan assets, beginning balance	$ 326,409
Fair value of plan assets, end of period	306,641
Pension Benefits
Change in projected benefit obligation:
Projected, benefit obligation, beginning of period	373,062	$ 404,194
Interest cost	1,508	1,450
Actuarial gain	(29,146)	(27,980)
Benefits paid	(4,810)	(4,583)
Currency translation loss	161	3,674
Projected benefit obligation, end of period	340,775	376,755
Change in plan assets:
Fair value of plan assets, beginning balance	326,409	305,983
Actual return on plan assets	(18,246)	4,291
Contributions by employer	3,287	3,916
Benefits paid	(4,810)	(4,828)
Expenses paid from assets	(115)	(78)
Currency translation gain	116	3,145
Fair value of plan assets, end of period	306,641	312,429
Funded status:
Unfunded benefit obligation, end of period	(34,134)		$ (46,653)
Amounts recognized in the Condensed Consolidated Balance Sheets at end of period
Current liability	(4,053)		(6,063)
Long-term liability	(30,081)		(40,590)
Recognized liability	(34,134)		(46,653)
Amounts recognized in accumulated other comprehensive loss at end of period
Net actuarial loss	49,441	65,831	58,143	$ 95,522
Other Benefits
Change in projected benefit obligation:
Projected, benefit obligation, beginning of period	1,346	1,593
Interest cost	4	5
Actuarial gain	(56)	(53)
Benefits paid	(26)	(42)
Currency translation loss	0	0
Projected benefit obligation, end of period	1,268	1,503
Change in plan assets:
Fair value of plan assets, beginning balance	0	0
Actual return on plan assets	0	0
Contributions by employer	26	42
Benefits paid	(26)	(42)
Expenses paid from assets	0	0
Currency translation gain	0	0
Fair value of plan assets, end of period	0	0
Funded status:
Unfunded benefit obligation, end of period	(1,268)		(1,346)
Amounts recognized in the Condensed Consolidated Balance Sheets at end of period
Current liability	(169)		(157)
Long-term liability	(1,099)		(1,189)
Recognized liability	(1,268)		(1,346)
Amounts recognized in accumulated other comprehensive loss at end of period
Net actuarial loss	$ 62	$ 120	$ 118	$ 174