Summary of Results of Operations for Business Segments (Details) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Oct. 01, 2016		Oct. 03, 2015		Oct. 01, 2016	Oct. 03, 2015	Jan. 02, 2016	Sep. 27, 2014
Segment Reporting Information [Line Items]
Net sales	[1]	$ 574,224		$ 449,004		$ 1,671,035	$ 1,291,891
Income from operations		121,439	[1]	80,030	[1]	319,727	229,970
Depreciation and amortization expense		13,169	[1]	11,823	[1]	44,409	33,983
Net capital expenditures		5,691	[1]	6,308	[1]	18,799	17,992
Total assets		2,915,468				2,915,468		$ 2,761,151	$ 2,710,779
Commercial Foodservice Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales		331,571	[1]	290,885	[1]	931,585	841,932
Income from operations		90,159	[1]	77,245	[1]	260,460	218,587
Depreciation and amortization expense		5,272	[1]	2,414	[1]	15,218	12,707
Net capital expenditures		3,469	[1]	2,801	[1]	10,975	10,721
Total assets		1,361,244				1,361,244			1,114,479
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales		82,196	[1]	74,178	[1]	244,307	215,910
Income from operations		19,360	[1]	14,048	[1]	56,409	41,534
Depreciation and amortization expense		1,419	[1]	24	[1]	4,377	5,006
Net capital expenditures		618	[1]	(607)	[1]	3,300	1,530
Total assets		333,056				333,056			313,109
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales		160,457	[1]	83,941	[1]	495,143	234,049
Income from operations		30,560	[1]	6,404	[1]	62,775	20,446
Depreciation and amortization expense		5,249	[1]	8,677	[1]	22,191	15,066
Net capital expenditures		1,604	[1]	4,231	[1]	4,393	5,600
Total assets		1,163,992				1,163,992			1,192,147
Corporate and Other
Segment Reporting Information [Line Items]
Net sales		0	[1],[2]	0	[1],[2]	0	0
Income from operations		(18,640)	[1],[2]	(17,667)	[1],[2]	(59,917)	(50,597)
Depreciation and amortization expense		1,229	[1],[2]	708	[1],[2]	2,623	1,204
Net capital expenditures		0	[1],[2]	$ (117)	[1],[2]	131	$ 141
Total assets		$ 57,176				$ 57,176			$ 91,044

[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.