Summary of Results of Operations for Business Segments (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 30, 2019	Mar. 31, 2018	Dec. 29, 2018
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	$ 686,802	$ 584,800
Income from operations	[1]	101,061	86,992
Depreciation and amortization expense	[1]	25,514	20,024
Capital Expenditures Net	[1]	8,095	16,657
Total assets		4,688,117	3,426,894	$ 4,549,781
Commercial Foodservice Equipment Group
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	457,531	359,904
Income from operations	[1]	96,811	82,546
Depreciation and amortization expense	[1]	16,180	8,000
Capital Expenditures Net	[1]	5,973	5,777
Total assets		2,970,850	1,724,174
Food Processing Group
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	92,474	88,572
Income from operations	[1]	12,586	10,678
Depreciation and amortization expense	[1]	3,524	4,047
Capital Expenditures Net	[1]	701	6,496
Total assets		530,440	484,038
Residential Kitchen
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1]	136,797	136,324
Income from operations	[1]	18,771	6,589
Depreciation and amortization expense	[1]	5,359	7,509
Capital Expenditures Net	[1]	1,421	4,898
Total assets		1,156,191	1,178,110
Corporate and Other
Segment Reporting Information [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	[1],[2]	0	0
Income from operations	[1],[2]	(27,107)	(12,821)
Depreciation and amortization expense	[1],[2]	451	468
Capital Expenditures Net	[1],[2]	0	(514)
Total assets		$ 30,636	$ 40,572

[1] Non-operating expenses are not allocated to the operating segments. Non-operating expenses consist of interest expense and deferred financing amortization, foreign exchange gains and losses and other income and expense items outside of income from operations.

[2] Includes corporate and other general company assets and operations.