Net Sales Summary (Details) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
		Sep. 30, 2017		Oct. 01, 2016		Sep. 30, 2017	Oct. 01, 2016
Segment Reporting Information [Line Items]
Net sales	[1]	$ 593,043		$ 574,224		$ 1,702,683	$ 1,671,035
Percent		100.00%		100.00%		100.00%	100.00%
Commercial Foodservice Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales		$ 354,828	[1]	$ 331,571	[1]	$ 1,000,830	$ 931,585
Percent		59.80%		57.70%		58.80%	55.80%
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales		$ 86,871	[1]	$ 82,196	[1]	$ 256,515	$ 244,307
Percent		14.70%		14.30%		15.10%	14.60%
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales		$ 151,344	[1]	$ 160,457	[1]	$ 445,338	$ 495,143
Percent		25.50%		28.00%		26.10%	29.60%

[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.