Defined Benefit Plan, Number Of Plans

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- Definition

Defined Benefit Plan, Weighted Average Term of Benefit Obligation

+ References

No definition available.

+ Details

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- Definition

Defined Contribution Plan, Number Of Plans

+ References

No definition available.

+ Details

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- Definition

Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level.

+ References

+ Details

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- Definition

Amount of contribution expected to be received by defined benefit plan from employer in next fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4587-114921

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- Definition

Percentage of target investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 55
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of cost for defined contribution plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 70
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942

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- Definition

Amount of cost (reversal of cost) for pension and other postretirement benefits.

+ References

No definition available.

+ Details

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PENSION AND OTHER POSTRETIREMENT BENEFITS (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 27, 2020 USD ($) plan	Dec. 29, 2019 USD ($)	Dec. 30, 2018 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Retirement plan expenses \| $	$ 17.4	$ 19.0	$ 12.1
Weighted average duration of defined benefit obligation	27 years 6 months
Expenses related to defined contribution plans \| $	$ 14.1	13.7	$ 11.4
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined contribution plans, number of plans	2
Mexico
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined contribution plans, number of plans	3
U.K. and Europe
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined contribution plans, number of plans	2
Pension Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Accumulated benefit obligation, defined benefit pension plans \| $	$ 404.2	$ 369.1
Expected contributions during 2021 \| $	$ 7.5
Pension Benefits \| Qualified Plan
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Number of plans	4
Pension Benefits \| Nonqualified Plan
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Number of plans	2
Other Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Number of plans	1
Expected contributions during 2021 \| $	$ 0.2
Union plan \| Pension Benefits \| Fixed income funds
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Target plan asset allocations	50.00%
GK Pension Plan \| Pension Benefits \| Fixed income funds
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Target plan asset allocations	35.00%
GK Pension Plan \| Pension Benefits \| Equity securities
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Target plan asset allocations	60.00%
GK Pension Plan \| Pension Benefits \| Real estate
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Target plan asset allocations	5.00%
U.K. Plans \| Pension Benefits \| Fixed income funds
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Target plan asset allocations	28.00%
U.K. Plans \| Pension Benefits \| Equity securities
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Target plan asset allocations	62.00%
U.K. Plans \| Pension Benefits \| Real estate
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Target plan asset allocations	10.00%