Restructuring, Integration, and Other Charges (Credits) - Accrual (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 26, 2020	Sep. 26, 2020	Dec. 31, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring and integration accrual	$ 7,746	$ 7,746	$ 9,667
Payments for restructuring and integration	(3,005)	$ (9,418)
Number of Years for the Accrual to Be Spent		2 years
Accrued expenses	899,326	$ 899,326	$ 880,507
Expense reduction program \| Personnel charges
Restructuring Cost and Reserve [Line Items]
Number of Years for the Accrual to Be Spent		5 years
Accrued expenses	$ 16,042	$ 16,042

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
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-Publisher FASB
-Name Accounting Standards Codification
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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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