Segment Information - Long-lived assets (Details) - USD ($) $ in Thousands	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Long-lived assets	$ 383,988	$ 362,588	$ 316,544
United States And Canada
Segment Reporting Information [Line Items]
Long-lived assets			181,317
Asia
Segment Reporting Information [Line Items]
Long-lived assets			14,729
Europe And Middle East
Segment Reporting Information [Line Items]
Long-lived assets			119,511
Latin America
Segment Reporting Information [Line Items]
Long-lived assets			987
Total International
Segment Reporting Information [Line Items]
Long-lived assets	121,506	141,109	$ 135,227
United States And Canada
Segment Reporting Information [Line Items]
Long-lived assets	262,482	221,479
Asia
Segment Reporting Information [Line Items]
Long-lived assets	12,136	14,033
Europe And Middle East
Segment Reporting Information [Line Items]
Long-lived assets	108,001	126,264
Latin America
Segment Reporting Information [Line Items]
Long-lived assets	$ 1,369	$ 812