Restructuring and Related Charges Schedule of Restructuring Cost by Types (Details) $ in Thousands	6 Months Ended
Jun. 26, 2020 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 4,850
Charges for current period	687
Cash payments	(2,975)
Others	(205)
Restructuring Reserve	2,357
Excess facilities
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	720
Cash payments	(642)
Others	0
Restructuring Reserve	78
Severance and benefits
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	3,294
Charges for current period	591
Cash payments	(1,653)
Others	(164)
Restructuring Reserve	2,068
French VDP
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	806
Charges for current period	49
Cash payments	(650)
Others	(41)
Restructuring Reserve	164
Others
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	30
Charges for current period	47
Cash payments	(30)
Restructuring Reserve	$ 47

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

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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
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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.

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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

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Amount of increase (decrease) in the restructuring reserve related to foreign currency translation (gain) loss and other increases (decreases).

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