Segment Information - Long-lived assets (Details) - USD ($) $ in Thousands		Jan. 02, 2021	Dec. 28, 2019	Dec. 29, 2018
Segment Reporting Information [Line Items]
Long-lived assets (6)	[1]	$ 547,339	$ 499,819	$ 383,988
Commercial Foodservice Equipment Group
Segment Reporting Information [Line Items]
Long-lived assets (6)	[1]	279,481	261,466	181,636
United States And Canada
Segment Reporting Information [Line Items]
Long-lived assets (6)				262,482
Asia
Segment Reporting Information [Line Items]
Long-lived assets (6)				12,136
Europe And Middle East
Segment Reporting Information [Line Items]
Long-lived assets (6)				108,001
Latin America
Segment Reporting Information [Line Items]
Long-lived assets (6)				1,369
Total International
Segment Reporting Information [Line Items]
Long-lived assets (6)		215,651	194,612	$ 121,506
United States And Canada
Segment Reporting Information [Line Items]
Long-lived assets (6)		331,688	305,207
Asia
Segment Reporting Information [Line Items]
Long-lived assets (6)		28,018	22,312
Europe And Middle East
Segment Reporting Information [Line Items]
Long-lived assets (6)		181,242	165,781
Latin America
Segment Reporting Information [Line Items]
Long-lived assets (6)		$ 6,391	$ 6,519

[1] Long-lived assets consist of property, plant and equipment, long-term deferred tax assets and other assets.