Summary of Results of Operations for Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 28, 2014		Jun. 29, 2013		Jun. 28, 2014		Jun. 29, 2013		Dec. 28, 2013
Segment Reporting Information [Line Items]
Net sales	$ 424,776	[1]	$ 363,801	[1]	$ 797,254	[1]	$ 691,252	[1]
Income from operations	75,739	[1]	60,325	[1]	131,672		102,520
Depreciation and amortization expense	10,793	[1]	11,794	[1]	21,314		25,817
Net capital expenditures	3,755	[1]	4,173	[1]	6,986		8,096
Total assets	1,926,099		1,710,551		1,926,099		1,710,551		1,819,206
Commercial Foodservice
Segment Reporting Information [Line Items]
Net sales	263,899	[1]	223,042	[1]	497,949		420,404
Income from operations	69,743	[1]	57,392	[1]	124,705	[1]	107,142
Depreciation and amortization expense	4,903	[1]	4,894	[1]	9,787	[1]	9,269
Net capital expenditures	2,223	[1]	3,284	[1]	4,466	[1]	4,786
Total assets	1,025,374		887,938		1,025,374		887,938
Food Processing
Segment Reporting Information [Line Items]
Net sales	89,943	[1]	81,936	[1]	165,529		153,374
Income from operations	16,988	[1]	13,625	[1]	29,110	[1]	25,105
Depreciation and amortization expense	2,249	[1]	2,131	[1]	4,370	[1]	4,156
Net capital expenditures	1,352	[1]	1,292	[1]	1,801	[1]	2,140
Total assets	322,864		298,890		322,864		298,890
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales	70,934	[1]	58,823	[1]	133,776	[1]	117,474
Income from operations	4,787	[1]	3,916	[1]	4,994	[1]	(3,325)
Depreciation and amortization expense	3,232	[1]	4,365	[1]	6,323	[1]	11,584
Net capital expenditures	180	[1]	(418)	[1]	719	[1]	1,069
Total assets	496,324		441,112		496,324		441,112
Corporate and Other
Segment Reporting Information [Line Items]
Net sales	0	[1],[2]	0	[1],[2]	0		0
Income from operations	(15,779)	[1],[2]	(14,608)	[1],[2]	(27,137)		(26,402)
Depreciation and amortization expense	409	[1],[2]	404	[1],[2]	834		808
Net capital expenditures	0	[1],[2]	15	[1],[2]	0		101
Total assets	$ 81,537		$ 82,611		$ 81,537		$ 82,611

[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.