Segment Information - Results of Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 29, 2012		Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011		Oct. 01, 2011	Jun. 30, 2011	Apr. 02, 2011	Dec. 29, 2012		Dec. 31, 2011		Jan. 01, 2011
Segment Reporting Information [Line Items]
Net sales	$ 291,612		$ 257,699	$ 260,040	$ 228,823	$ 243,760		$ 218,720	$ 210,855	$ 182,572	$ 1,038,174		$ 855,907		$ 719,121
Operating Income (Loss)	58,657		47,429	45,338	36,660	44,912		37,186	35,248	31,364	188,084	[1]	148,710	[1]	122,788	[1]
Depreciation and amortization											26,903		19,708		17,014
Net capital expenditures											7,652		7,840		3,159
Total assets	1,244,280					1,146,512					1,244,280		1,146,512		873,172
Long-lived assets	72,326	[2]				66,591	[2]				72,326	[2]	66,591	[2]	50,270	[2]
Commercial Foodservice [Member]
Segment Reporting Information [Line Items]
Net sales											786,391		723,274		611,596
Operating Income (Loss)											194,573		181,963		148,443
Depreciation and amortization											17,920		15,839		13,331
Net capital expenditures											3,834		6,896		2,810
Total assets	880,333					848,655					880,333		848,655		712,738
Long-lived assets	45,240	[2]				45,971	[2]				45,240	[2]	45,971	[2]	34,559	[2]
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales											251,783		132,633		107,525
Operating Income (Loss)											39,924		19,997		20,580
Depreciation and amortization											7,366		3,053		3,130
Net capital expenditures											3,829		447		136
Total assets	291,913					238,724					291,913		238,724		103,829
Long-lived assets	11,074	[2]				7,771	[2]				11,074	[2]	7,771	[2]	4,120	[2]
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales											0	[3]	0	[3]	0	[3]
Operating Income (Loss)											(46,413)	[3]	(53,250)	[3]	(46,235)	[3]
Depreciation and amortization											1,617	[3]	816	[3]	553	[3]
Net capital expenditures											(11)	[3]	497	[3]	213	[3]
Total assets	72,034	[3]				59,133	[3]				72,034	[3]	59,133	[3]	56,605	[3]
Long-lived assets	$ 16,012	[2],[3]				$ 12,849	[2],[3]				$ 16,012	[2],[3]	$ 12,849	[2],[3]	$ 11,591	[2],[3]

[1] Non-operating expenses are not allocated to the reportable 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] Long lived assets as previously reported included goodwill and other intangibles assets, which have been removed from all years in the current year presentation. In addition, certain amounts of total assets reported in Corporate and Other in 2011 have been reclassified to Commercial Foodservice in the current year presentation.

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