Revenue Recognition Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 29, 2018	Dec. 30, 2017	Dec. 31, 2016
Disaggregation of Revenue [Line Items]
Net sales	$ 756,672	$ 713,331	$ 668,128	$ 584,800	$ 632,859	$ 593,043	$ 579,343	$ 530,297	$ 2,722,931	$ 2,335,542	$ 2,267,852
Latin America
Disaggregation of Revenue [Line Items]
Net sales									90,634	78,514	65,929
United States And Canada
Disaggregation of Revenue [Line Items]
Net sales									1,806,428	1,569,426	1,502,190
Asia
Disaggregation of Revenue [Line Items]
Net sales									224,142	177,976	174,452
Europe And Middle East
Disaggregation of Revenue [Line Items]
Net sales									601,727	509,626	525,281
Commercial Foodservice Equipment Group
Disaggregation of Revenue [Line Items]
Net sales									1,729,814	1,382,108	1,266,955
Commercial Foodservice Equipment Group | Latin America
Disaggregation of Revenue [Line Items]
Net sales									57,464	42,226	42,961
Commercial Foodservice Equipment Group | United States And Canada
Disaggregation of Revenue [Line Items]
Net sales									1,176,006	968,483	886,597
Commercial Foodservice Equipment Group | Asia
Disaggregation of Revenue [Line Items]
Net sales									180,409	144,702	140,964
Commercial Foodservice Equipment Group | Europe And Middle East
Disaggregation of Revenue [Line Items]
Net sales									315,935	226,697	196,433
Food Processing Group
Disaggregation of Revenue [Line Items]
Net sales									389,594	352,717	342,235
Food Processing Group | Latin America
Disaggregation of Revenue [Line Items]
Net sales									24,607	28,330	15,657
Food Processing Group | United States And Canada
Disaggregation of Revenue [Line Items]
Net sales									263,743	256,739	247,636
Food Processing Group | Asia
Disaggregation of Revenue [Line Items]
Net sales									36,578	25,175	24,254
Food Processing Group | Europe And Middle East
Disaggregation of Revenue [Line Items]
Net sales									64,666	42,473	54,688
Residential Kitchen
Disaggregation of Revenue [Line Items]
Net sales									603,523	600,717	658,662
Residential Kitchen | Latin America
Disaggregation of Revenue [Line Items]
Net sales									8,563	7,958	7,311
Residential Kitchen | United States And Canada
Disaggregation of Revenue [Line Items]
Net sales									366,679	344,204	367,957
Residential Kitchen | Asia
Disaggregation of Revenue [Line Items]
Net sales									7,155	8,099	9,234
Residential Kitchen | Europe And Middle East
Disaggregation of Revenue [Line Items]
Net sales									$ 221,126	$ 240,456	$ 274,160