Summary of Results of Operations for Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 29, 2013		Jun. 30, 2012		Jun. 29, 2013		Jun. 30, 2012		Dec. 29, 2012
Segment Reporting Information [Line Items]
Net sales	$ 363,801	[1]	$ 260,040	[1]	$ 691,252	[1]	$ 488,863	[1]
Income from operations	60,325	[1]	45,338	[1]	102,520		81,998
Depreciation and amortization expense	11,794	[1]	6,542	[1]	25,817		13,589
Net capital expenditures	4,173	[1]	1,513	[1]	8,096		3,097
Total assets	1,710,551		1,141,014		1,710,551		1,141,014		1,244,280
Long-lived assets	125,478		66,927		125,478		66,927
Commercial Foodservice
Segment Reporting Information [Line Items]
Net sales	223,042	[1]	196,546	[1]	420,404		374,816
Income from operations	57,392	[1]	49,657	[1]	107,142	[1]	89,403
Depreciation and amortization expense	4,894	[1]	4,291	[1]	9,269	[1]	9,207
Net capital expenditures	3,284	[1]	1,025	[1]	4,786	[1]	2,329
Total assets	887,938		842,585		887,938		842,585
Food Processing
Segment Reporting Information [Line Items]
Net sales	81,936	[1]	63,494	[1]	153,374		114,047
Income from operations	13,625	[1]	9,658	[1]	25,105	[1]	15,878
Depreciation and amortization expense	2,131	[1]	2,021	[1]	4,156	[1]	3,932
Net capital expenditures	1,292	[1]	468	[1]	2,140	[1]	723
Total assets	298,890		239,714		298,890		239,714
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales	58,823	[1]	0	[1]	117,474	[1]	0
Income from operations	3,916	[1]	0	[1]	(3,325)	[1]	0
Depreciation and amortization expense	4,365	[1]	0	[1]	11,584	[1]	0
Net capital expenditures	(418)	[1]	0	[1]	1,069	[1]	0
Total assets	441,112		0		441,112		0
Corporate and Other
Segment Reporting Information [Line Items]
Net sales	0	[1],[2]	0	[1],[2]	0		0
Income from operations	(14,608)	[1],[2]	(13,977)	[1],[2]	(26,402)		(23,283)
Depreciation and amortization expense	404	[1],[2]	230	[1],[2]	808		450
Net capital expenditures	15	[1],[2]	20	[1],[2]	101		45
Total assets	$ 82,611		$ 58,715		$ 82,611		$ 58,715

[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.

[2] Includes corporate and other general company assets and operations.