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Taxes (Reconciliation of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of year	$ 39,909	$ 35,355	$ 23,399
Gross increases—tax positions in prior years	6,639	7,183	2,104
Gross decreases—tax positions in prior years	(4)	(124)	(845)
Gross increases—tax positions in current year	184	576	13,444
Settlements	(1,901)	0	(81)
Lapse in statute of limitations	(8,912)	(2,980)	(2,706)
Change due to currency revaluation	(239)	(101)	40
Balance at end of year	$ 35,676	$ 39,909	$ 35,355

X

- Definition

The net amount of increases and decreases in unrecognized tax benefits for the period due to currency revaluation.

+ References

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

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- Definition

Amount of unrecognized tax benefits.

+ References

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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- Definition

Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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