Net Sales Summary (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Apr. 02, 2011
Segment Reporting Information [Line Items]
Sales	$ 228,823	[1]	$ 182,572	[1]
Percent	100.00%		100.00%
Commercial Foodservice
Segment Reporting Information [Line Items]
Sales	178,270	[1]	153,733	[1]
Percent	77.90%		84.20%
Food Processing
Segment Reporting Information [Line Items]
Sales	$ 50,553	[1]	$ 28,839	[1]
Percent	22.10%		15.80%

[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.