Summary of Results of Operations for Business Segments (Details) - USD ($) $ in Thousands		3 Months Ended
		Apr. 01, 2017	Apr. 02, 2016	Dec. 31, 2016	Sep. 27, 2014
Segment Reporting Information [Line Items]
Net sales	[1]	$ 530,297	$ 516,355
Income from operations		101,079	86,375
Depreciation and amortization expense		14,057	14,930
Net capital expenditures		8,276	7,693
Total assets		2,943,031		$ 2,917,136	$ 2,777,944
Commercial Foodservice Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales		312,249	278,986
Income from operations		80,541	76,569
Depreciation and amortization expense		4,982	4,371
Net capital expenditures		5,985	4,184
Total assets		1,359,869			1,132,939
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales		77,276	78,636
Income from operations		17,989	17,863
Depreciation and amortization expense		1,387	1,438
Net capital expenditures		638	1,798
Total assets		344,307			325,373
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales		140,772	158,733
Income from operations		18,912	9,851
Depreciation and amortization expense		7,207	8,704
Net capital expenditures		1,282	1,711
Total assets		1,200,241			1,235,772
Corporate and Other
Segment Reporting Information [Line Items]
Net sales		0	0
Income from operations		(16,363)	(17,908)
Depreciation and amortization expense		481	417
Net capital expenditures		371	$ 0
Total assets		$ 38,614			$ 83,860

[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.