Income Taxes (Schedule of Unrecognized Tax Benefits Rollforward) (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]
Unrecognized tax benefit - beginning balance	$ 18,688	$ 15,287	$ 9,769
Gross decreases - tax positions in prior periods	(2,383)	0	(1,734)
Gross increases - tax positions in prior periods	1,220	1,591	7,252
Gross increases - tax positions in current year	1,607	2,370	0
Settlements	0	(541)	0
Currency translation	(7)	(19)	0
Unrecognized tax benefit - ending balance	$ 19,125	$ 18,688	$ 15,287

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

No definition available.

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Amount of unrecognized tax benefits.

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Amount of decrease in unrecognized tax benefits resulting from foreign currency translation.

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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 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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