Net Sales Summary (Details) - USD ($) $ in Thousands		3 Months Ended				6 Months Ended
		Jul. 01, 2017		Jul. 02, 2016		Jul. 01, 2017	Jul. 02, 2016
Segment Reporting Information [Line Items]
Net sales	[1]	$ 579,343		$ 580,456		$ 1,109,640	$ 1,096,811
Percent		100.00%		100.00%		100.00%	100.00%
Commercial Foodservice Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales		$ 333,753	[1]	$ 321,028	[1]	$ 646,002	$ 600,014
Percent		57.60%		55.30%		58.20%	54.70%
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales		$ 92,368	[1]	$ 83,475	[1]	$ 169,644	$ 162,111
Percent		15.90%		14.40%		15.30%	14.80%
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales		$ 153,222	[1]	$ 175,953	[1]	$ 293,994	$ 334,686
Percent		26.50%		30.30%		26.50%	30.50%

[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.