Summary of Results of Operations for Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 28, 2013		Sep. 29, 2012		Sep. 28, 2013		Sep. 29, 2012		Dec. 29, 2012
Segment Reporting Information [Line Items]
Net sales	$ 360,013	[1]	$ 257,699	[1]	$ 1,051,265	[1]	$ 746,562	[1]
Income from operations	67,488	[1]	47,429	[1]	170,008		129,427
Depreciation and amortization expense	9,200	[1]	7,101	[1]	35,017		20,690
Net capital expenditures	2,960	[1]	2,866	[1]	11,056		5,963
Total assets	1,700,488		1,194,002		1,700,488		1,194,002		1,244,280
Long-lived assets	130,671		74,203		130,671		74,203
Commercial Foodservice
Segment Reporting Information [Line Items]
Net sales	230,807	[1]	198,615	[1]	651,211		573,431
Income from operations	61,947	[1]	50,105	[1]	169,089	[1]	139,508
Depreciation and amortization expense	4,557	[1]	4,238	[1]	13,826	[1]	13,445
Net capital expenditures	1,705	[1]	779	[1]	6,491	[1]	3,108
Total assets	878,591		853,582		878,591		853,582
Food Processing
Segment Reporting Information [Line Items]
Net sales	71,209	[1]	59,084	[1]	224,583		173,131
Income from operations	8,905	[1]	7,877	[1]	34,010	[1]	23,755
Depreciation and amortization expense	2,017	[1]	2,250	[1]	6,173	[1]	6,182
Net capital expenditures	377	[1]	2,029	[1]	2,517	[1]	2,752
Total assets	302,239		277,129		302,239		277,129
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales	57,997	[1]	0	[1]	175,471	[1]	0
Income from operations	8,498	[1]	0	[1]	5,173	[1]	0
Depreciation and amortization expense	2,215	[1]	0	[1]	13,799	[1]	0
Net capital expenditures	872	[1]	0	[1]	1,941	[1]	0
Total assets	434,330		0		434,330		0
Corporate and Other
Segment Reporting Information [Line Items]
Net sales	0	[1],[2]	0	[1],[2]	0		0
Income from operations	(11,862)	[1],[2]	(10,553)	[1],[2]	(38,264)		(33,836)
Depreciation and amortization expense	411	[1],[2]	613	[1],[2]	1,219		1,063
Net capital expenditures	6	[1],[2]	58	[1],[2]	107		103
Total assets	$ 85,328		$ 63,291		$ 85,328		$ 63,291

[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.