Employee Benefit and Pension Plans - Weighted Average Assumptions (Details)	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate	1.35%	2.07%
Salary growth rate	2.25%	2.25%
Pension growth rate	2.00%	2.00%
Retiring at the end of the reporting period	20 years 6 months
Male	20 years
Female	23 years 7 months 6 days

Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate Of Pension Increase

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- Definition

Defined Pension Plan, Average Life Expectancy During Retirement, Female

+ References

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- Definition

Defined Pension Plan, Average Life Expectancy During Retirement, Male

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- Definition

Defined Pension Plan, Average Life Expectancy During Retirement, Retiring At End Of Period

+ References

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- Definition

Weighted average rate for present value of future retirement benefits cash flows, used to determine benefit obligation of defined benefit plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(1)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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- Definition

Weighted average rate increase of compensation, used to determine benefit obligation of defined benefit plan. Plan includes, but is not limited to, pay-related defined benefit plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(2)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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