Summary of Results of Operations for Business Segments (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jul. 01, 2017		Jul. 02, 2016		Jul. 01, 2017	Jul. 02, 2016	Dec. 31, 2016	Sep. 27, 2014
Segment Reporting Information [Line Items]
Net sales	[1]	$ 579,343		$ 580,456		$ 1,109,640	$ 1,096,811
Income from operations		122,136	[1]	111,913	[1]	223,215	198,288
Depreciation and amortization expense		18,258	[1]	16,310	[1]	32,315	31,240
Net capital expenditures		23,432	[1]	5,415	[1]	31,708	13,108
Total assets		3,140,535				3,140,535		$ 2,917,136	$ 2,931,670
Commercial Foodservice Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales		333,753	[1]	321,028	[1]	646,002	600,014
Income from operations		95,007	[1]	93,732	[1]	175,548	170,301
Depreciation and amortization expense		8,496	[1]	5,575	[1]	13,478	9,946
Net capital expenditures		20,764	[1]	3,322	[1]	26,749	7,506
Total assets		1,495,316				1,495,316			1,367,664
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales		92,368	[1]	83,475	[1]	169,644	162,111
Income from operations		24,199	[1]	19,186	[1]	42,188	37,049
Depreciation and amortization expense		1,657	[1]	1,520	[1]	3,044	2,958
Net capital expenditures		1,308	[1]	884	[1]	1,946	2,682
Total assets		393,674				393,674			321,694
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales		153,222	[1]	175,953	[1]	293,994	334,686
Income from operations		22,006	[1]	22,364	[1]	40,918	32,215
Depreciation and amortization expense		7,627	[1]	8,238	[1]	14,834	16,942
Net capital expenditures		1,661	[1]	1,078	[1]	2,943	2,789
Total assets		1,205,676				1,205,676			1,195,379
Corporate and Other
Segment Reporting Information [Line Items]
Net sales		0	[1],[2]	0	[1],[2]	0	0
Income from operations		(19,076)	[1],[2]	(23,369)	[1],[2]	(35,439)	(41,277)
Depreciation and amortization expense		478	[1],[2]	977	[1],[2]	959	1,394
Net capital expenditures		(301)	[1],[2]	$ 131	[1],[2]	70	$ 131
Total assets		$ 45,869				$ 45,869			$ 46,933

[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.