Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at beginning of period	$ 3,853	$ 3,119	$ 3,288
Additions for tax positions taken in the current year	114	1,677	74
Increases for tax positions taken in prior years	571	16	1,479
Decreases for tax positions taken in prior years	(48)	(390)	(964)
Settlements with tax authorities	(5)	(32)
Settlement with tax authorities			(558)
Expiration of statute of limitations	(199)	(537)	(200)
Balance at end of period	$ 4,286	$ 3,853	$ 3,119

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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- Definition

Amount of unrecognized tax benefits.

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

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