Segment Information - Results of Business Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Jan. 03, 2015		Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013		Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Jan. 03, 2015		Dec. 28, 2013		Dec. 29, 2012		Jan. 01, 2011
Segment Reporting Information [Line Items]
Net sales	$ 434,995		$ 404,289	$ 424,776	$ 372,478	$ 377,420		$ 360,013	$ 363,801	$ 327,451	$ 1,636,538		$ 1,428,685		$ 1,038,174
Operating Income (Loss)	82,295		86,465	75,739	55,933	74,454		67,488	60,325	42,195	300,432		244,462		188,084	[1]
Depreciation and amortization											41,252		43,164		26,903
Net capital expenditures											13,143		14,640		7,652
Total assets	2,066,131					1,819,206					2,066,131		1,819,206				1,244,280
Long-lived assets	151,478	[2]				137,573	[2]				151,478	[2]	137,573	[2]			72,326	[2]
Commercial Foodservice Equipment Group [Member]
Segment Reporting Information [Line Items]
Net sales											1,041,228		895,494		786,391
Operating Income (Loss)											269,559		234,190		194,573
Depreciation and amortization											19,661		18,787		17,920
Net capital expenditures											6,752		7,227		3,834
Total assets	1,053,921					1,000,065					1,053,921		1,000,065				880,333
Long-lived assets	50,211	[2]				47,490	[2]				50,211	[2]	47,490	[2]			45,240	[2]
Food Processing Group [Member]
Segment Reporting Information [Line Items]
Net sales											322,783		301,522		251,783
Operating Income (Loss)											67,395		49,528		39,924
Depreciation and amortization											6,601		8,387		7,366
Net capital expenditures											4,487		3,140		3,829
Total assets	304,241					303,289					304,241		303,289				291,913
Long-lived assets	19,627	[2]				12,475	[2]				19,627	[2]	12,475	[2]			11,074	[2]
Residential Kitchen [Member]
Segment Reporting Information [Line Items]
Net sales											272,527		231,669		0
Operating Income (Loss)											14,585		10,815		0
Depreciation and amortization											13,356		14,148		0
Net capital expenditures											1,811		4,090		0
Total assets	636,680					441,299					636,680		441,299		0
Long-lived assets	71,500					60,570					71,500		60,570		0
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Net sales											0		0		0	[3]
Operating Income (Loss)											(51,107)		(50,071)		(46,413)	[3]
Depreciation and amortization											1,634		1,842		1,617	[3]
Net capital expenditures											93		183		(11)	[3]
Total assets	71,289					74,553					71,289		74,553				72,034	[3]
Long-lived assets	$ 10,140	[2],[3]				$ 17,038	[2],[3]				$ 10,140	[2],[3]	$ 17,038	[2],[3]			$ 16,012	[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] .

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