Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Disaggregation of Revenue [Line Items]
Net sales	$ 787,626	$ 724,014	$ 761,004	$ 686,802	$ 756,672	$ 713,331	$ 668,128	$ 584,800	$ 2,959,446	$ 2,722,931	$ 2,335,542
United States And Canada
Disaggregation of Revenue [Line Items]
Net sales									1,944,101	1,806,428	1,569,426
Asia
Disaggregation of Revenue [Line Items]
Net sales									258,432	224,142	177,976
Europe And Middle East
Disaggregation of Revenue [Line Items]
Net sales									647,099	601,727	509,626
Latin America
Disaggregation of Revenue [Line Items]
Net sales									109,814	90,634	78,514
Commercial Foodservice Equipment Group
Disaggregation of Revenue [Line Items]
Net sales									1,984,345	1,729,814	1,382,108
Commercial Foodservice Equipment Group | United States And Canada
Disaggregation of Revenue [Line Items]
Net sales									1,334,776	1,176,006	968,483
Commercial Foodservice Equipment Group | Asia
Disaggregation of Revenue [Line Items]
Net sales									221,422	180,409	144,702
Commercial Foodservice Equipment Group | Europe And Middle East
Disaggregation of Revenue [Line Items]
Net sales									349,613	315,935	226,697
Commercial Foodservice Equipment Group | Latin America
Disaggregation of Revenue [Line Items]
Net sales									78,534	57,464	42,226
Food Processing Group
Disaggregation of Revenue [Line Items]
Net sales									400,951	389,594	352,717
Food Processing Group | United States And Canada
Disaggregation of Revenue [Line Items]
Net sales									246,572	263,743	256,739
Food Processing Group | Asia
Disaggregation of Revenue [Line Items]
Net sales									31,250	36,578	25,175
Food Processing Group | Europe And Middle East
Disaggregation of Revenue [Line Items]
Net sales									98,814	64,666	42,473
Food Processing Group | Latin America
Disaggregation of Revenue [Line Items]
Net sales									24,315	24,607	28,330
Residential Kitchen
Disaggregation of Revenue [Line Items]
Net sales									574,150	603,523	600,717
Residential Kitchen | United States And Canada
Disaggregation of Revenue [Line Items]
Net sales									362,753	366,679	344,204
Residential Kitchen | Asia
Disaggregation of Revenue [Line Items]
Net sales									5,760	7,155	8,099
Residential Kitchen | Europe And Middle East
Disaggregation of Revenue [Line Items]
Net sales									198,672	221,126	240,456
Residential Kitchen | Latin America
Disaggregation of Revenue [Line Items]
Net sales									$ 6,965	$ 8,563	$ 7,958