Restructuring (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Dec. 30, 2017
Restructuring Reserve [Roll Forward]
Expenses	$ (1,693)	$ (1,725)
Commercial Foodservice Equipment Group [Member]
Restructuring Reserve [Roll Forward]
Expenses	(1,000)
Effects on Future Earnings, Restructuring	10,000
Residential Kitchen [Member]
Restructuring Reserve [Roll Forward]
Expenses	(700)
Restructuring Charges, Cumulative	41,300
Effects on Future Earnings, Restructuring	20,000
Residential Kitchen [Member] | Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve	2,294		$ 3,698
Expenses	(777)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	126
Payments	(2,307)
Residential Kitchen [Member] | Facility Closing [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve	1,187		1,467
Expenses	(183)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	26
Payments	(123)
Residential Kitchen [Member] | Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve	239		157
Expenses	(146)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	3
Payments	(67)
Residential Kitchen [Member] | Restructuring Charges [Member]
Restructuring Reserve [Roll Forward]
Restructuring Reserve	3,720		$ 5,322
Expenses	(740)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	155
Payments	$ (2,497)