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Leases Supplemental Other Information Related To Leases (Details)	Sep. 27, 2020	Dec. 31, 2019
Weighted Average Remaining Lease Term
Operating leases	5 years	6 years
Finance leases	2 years	3 years
Weighted Average Discount Rate
Operating leases	6.60%	6.90%
Finance leases	6.00%	6.20%

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Leases, Weighted Average Discount Rate [Abstract]

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Weighted Average Remaining Lease Term [Abstract]

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Weighted average discount rate for finance lease calculated at point in time.

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Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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