Summary of Results of Operations for Business Segments (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2018		Jul. 01, 2017		Jun. 30, 2018	Jul. 01, 2017	Dec. 30, 2017
Segment Reporting Information [Line Items]
Net sales	$ 668,128	[1]	$ 579,343	[1]	$ 1,252,928	$ 1,109,640
Income from operations	111,310	[1]	113,524	[1]	198,302	206,265
Depreciation and amortization expense	18,598	[1]	18,258	[1]	38,622	32,315
Capital Expenditures Net	7,551	[1]	23,432	[1]	24,208	31,708
Total assets	4,602,203		3,140,535		4,602,203	3,140,535	$ 3,339,713
Commercial Foodservice Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales	414,117	[1]	333,753	[1]	774,021	646,002
Income from operations	100,008	[1]	95,007	[1]	182,554	175,548
Depreciation and amortization expense	7,349	[1]	8,496	[1]	15,349	13,478
Capital Expenditures Net	2,929	[1]	20,764	[1]	8,706	26,749
Total assets	2,889,677		1,495,316		2,889,677	1,495,316
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales	93,649	[1]	92,368	[1]	182,221	169,644
Income from operations	14,648	[1]	24,199	[1]	25,326	42,188
Depreciation and amortization expense	3,129	[1]	1,657	[1]	7,176	3,044
Capital Expenditures Net	460	[1]	1,308	[1]	6,956	1,946
Total assets	497,439		393,674		497,439	393,674
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales	160,362	[1]	153,222	[1]	296,686	293,994
Income from operations	16,520	[1]	13,394	[1]	23,109	23,968
Depreciation and amortization expense	7,652	[1]	7,627	[1]	15,161	14,834
Capital Expenditures Net	2,744	[1]	1,661	[1]	7,642	2,943
Total assets	1,133,356		1,205,676		1,133,356	1,205,676
Corporate and Other
Segment Reporting Information [Line Items]
Net sales	0	[1],[2]	0	[1],[2]	0	0
Income from operations	(19,866)	[1],[2]	(19,076)	[1],[2]	(32,687)	(35,439)
Depreciation and amortization expense	468	[1],[2]	478	[1],[2]	936	959
Capital Expenditures Net	1,418	[1],[2]	(301)	[1],[2]	904	70
Total assets	$ 81,731		$ 45,869		$ 81,731	$ 45,869

[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.