Segment Information - Results of Business Segments (Details) - USD ($) $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jul. 02, 2016	Apr. 02, 2016	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016		Sep. 27, 2014	Dec. 29, 2012	Jan. 01, 2011
Segment Reporting Information [Line Items]
Net sales		$ 632,859	$ 593,043	$ 579,343	$ 530,297	$ 596,817	$ 574,224	$ 580,456	$ 516,355	$ 2,335,542	$ 2,267,852	$ 1,826,598
Operating Income (Loss)		68,869	$ 118,257	$ 122,136	$ 101,079	126,498	$ 121,439	$ 111,913	$ 86,375	410,341	446,225	302,603	[1]
Depreciation and amortization										69,774	58,234	54,074
Net capital expenditures										54,493	24,817	22,362
Total assets		3,339,713				2,917,136				3,339,713	2,917,136			$ 2,917,136		$ 2,761,151
Long-lived assets	[2]					362,588					362,588	316,544				233,220
Commercial Foodservice Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales										1,382,108	1,266,955	1,121,046
Operating Income (Loss)										356,776	350,315	296,061
Depreciation and amortization										29,981	19,548	17,117
Net capital expenditures										41,457	11,958	12,123
Total assets		1,693,820								1,693,820				1,347,441		1,115,840
Long-lived assets	[2]					148,565					148,565	84,475				61,835
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales										352,717	342,235	297,712
Operating Income (Loss)										88,121	87,039	64,650
Depreciation and amortization										7,357	5,696	5,839
Net capital expenditures										5,519	5,667	2,164
Total assets		450,932								450,932				340,088		308,677
Long-lived assets	[2]					25,346					25,346	21,763				20,307
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales										600,717	658,662	407,840
Operating Income (Loss)										30,972	89,435	4,653
Depreciation and amortization										30,551	29,897	29,515
Net capital expenditures										7,637	6,961	7,935
Total assets		1,140,668								1,140,668				1,179,640	$ 1,250,503
Long-lived assets						167,486					167,486	175,206			$ 129,751
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales										0	0	0	[3]
Operating Income (Loss)										(65,528)	(80,564)	(62,761)	[3]
Depreciation and amortization										1,885	3,093	1,603	[3]
Net capital expenditures										(120)	231	140	[3]
Total assets		$ 54,293								$ 54,293				$ 49,967		86,131	[3]
Long-lived assets	[2],[3]					$ 21,191					$ 21,191	$ 35,100				$ 21,327

[1] Non-operating expenses are not allocated to the reportable 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] .

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