Pension, Postretirement and Postemployment Benefits - Summary of Changes in Projected Benefit Obligation (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Feb. 29, 2020	Dec. 27, 2020	Dec. 29, 2019	Dec. 30, 2018	Dec. 27, 2020	Dec. 29, 2019
Pension
Change in Projected Benefit Obligation
Service cost		$ 0	$ 1,168	$ 1,300
Interest cost		1,466	6,624	13,358
Change in Plan Assets
Transfers	$ 19,500
Pension | U.S. Facilities
Change in Projected Benefit Obligation
Projected benefit obligation — beginning		30,971	395,718
Service cost		0	1,168
Interest cost		1,466	6,624
Transfer in		14,796	0
Actuarial (gain) loss		3,436	(8,092)
Benefits paid		(4,637)	(13,271)
Expenses paid		0	(3,172)
Curtailment		0	0
Settlements paid		0	(348,004)
Projected benefit obligation — ending		46,032	30,971	395,718
Accumulated benefit obligation — ending		46,032	30,971
Change in Plan Assets
Fair value of plan assets — beginning		0	357,224
Actual return on plan assets		0	23,147
Employer contribution		0	4,311
Benefits paid		0	(13,271)
Expenses paid		0	(3,172)
Settlement of U.S. defined benefit plan		0	(348,004)
Transfers		0	(20,235)
Fair value of plan assets — ending		0	0	357,224
Reconciliation of Funded Status
Projected benefit obligation		(30,971)	(30,971)	(395,718)	$ (46,032)	$ (30,971)
Fair value of plan assets		0	357,224	357,224	0	0
Funded status					(46,032)	(30,971)
Unrecognized net loss					15,787	13,054
Net amount					(30,245)	(17,917)
Accrued liabilities					(3,232)	(2,484)
Other liabilities					(42,800)	(28,487)
Accumulated other comprehensive (earnings) loss					15,787	13,054
Net amount					(30,245)	(17,917)
Postretirement
Change in Projected Benefit Obligation
Service cost		0	888	756
Interest cost		919	1,267	1,171
Postretirement | U.S. Facilities
Change in Projected Benefit Obligation
Projected benefit obligation — beginning		27,443	30,081
Service cost		0	888
Interest cost		919	1,267
Transfer in		0	0
Actuarial (gain) loss		3,382	6,350
Benefits paid		(1,797)	(1,641)
Expenses paid		0	0
Curtailment		0	(9,502)
Settlements paid		0	0
Projected benefit obligation — ending		29,947	27,443	30,081
Accumulated benefit obligation — ending		29,947	27,443
Change in Plan Assets
Fair value of plan assets — beginning		0	0
Actual return on plan assets		0	0
Employer contribution		0	0
Benefits paid		0	0
Expenses paid		0	0
Settlement of U.S. defined benefit plan		0	0
Transfers		0	0
Fair value of plan assets — ending		0	0	0
Reconciliation of Funded Status
Projected benefit obligation		(27,443)	(27,443)	(30,081)	(29,947)	(27,443)
Fair value of plan assets		$ 0	$ 0	$ 0	0	0
Funded status					(29,947)	(27,443)
Unrecognized net loss					3,559	177
Net amount					(26,388)	(27,266)
Accrued liabilities					(1,740)	(1,767)
Other liabilities					(28,207)	(25,676)
Accumulated other comprehensive (earnings) loss					3,559	177
Net amount					$ (26,388)	$ (27,266)