Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017	Dec. 30, 2017
Restructuring Reserve [Roll Forward]
Expenses	$ (4,441)	$ (11,494)	$ (6,134)	$ (13,219)
Commercial Foodservice Equipment Group [Member]
Restructuring Reserve [Roll Forward]
Expenses	(1,000)		(2,000)
Effects on Future Earnings, Restructuring	10,000		10,000
Food Processing Group [Member]
Restructuring Reserve [Roll Forward]
Expenses	(400)
Effects on Future Earnings, Restructuring	4,000		4,000
Residential Kitchen [Member]
Restructuring Reserve [Roll Forward]
Expenses	(3,000)		(3,700)
Restructuring Charges, Cumulative			44,300
Effects on Future Earnings, Restructuring	20,000		20,000
Residential Kitchen [Member] | Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve	3,133		3,133		$ 3,698
Expenses			(3,721)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)			(30)
Payments			(4,256)
Residential Kitchen [Member] | Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve	1,072		1,072		1,467
Expenses			(47)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)			(11)
Payments			(337)
Residential Kitchen [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve	187		187		157
Expenses			(35)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)			27
Payments			(32)
Residential Kitchen [Member] | Restructuring Charges [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve	$ 4,392		4,392		$ 5,322
Expenses			(3,709)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)			(14)
Payments			$ (4,625)