Acquisitions and Purchase Accounting Additional Information (Details) (USD $)	0 Months Ended	3 Months Ended						6 Months Ended		6 Months Ended		6 Months Ended		0 Months Ended		6 Months Ended		6 Months Ended		0 Months Ended			6 Months Ended		6 Months Ended		0 Months Ended	3 Months Ended					6 Months Ended		6 Months Ended		0 Months Ended			6 Months Ended		6 Months Ended		6 Months Ended		0 Months Ended	6 Months Ended		0 Months Ended			6 Months Ended		6 Months Ended		0 Months Ended			6 Months Ended		6 Months Ended		0 Months Ended	6 Months Ended		6 Months Ended		0 Months Ended
	Jul. 05, 2011 Danfotech	Jun. 30, 2012 Danfotech	Dec. 31, 2011 Danfotech	Jul. 05, 2011 Danfotech Measurement Period Adjustments	Jul. 05, 2011 Danfotech as initially reported	Jul. 05, 2011 Danfotech Book and Tax Basis Difference Tangible Assets [Member] Maximum	Jul. 05, 2011 Danfotech Book and Tax Basis Difference Intangible Assets	Jun. 29, 2013 Danfotech Food Processing Backlog	Jul. 05, 2011 Danfotech Food Processing Backlog Maximum	Jun. 29, 2013 Danfotech Food Processing Customer Relationships	Jul. 05, 2011 Danfotech Food Processing Customer Relationships	Jun. 29, 2013 Danfotech Food Processing Developed Technology	Jul. 05, 2011 Danfotech Food Processing Developed Technology	Jul. 22, 2011 Maurer	Jun. 30, 2012 Maurer Measurement Period Adjustments	Jun. 29, 2013 Maurer Food Processing Customer Relationships	Jul. 22, 2011 Maurer Food Processing Customer Relationships	Jun. 29, 2013 Maurer Food Processing Developed Technology	Jul. 22, 2011 Maurer Food Processing Developed Technology Maximum	Aug. 01, 2011 Auto-Bake	Aug. 01, 2011 Auto-Bake Measurement Period Adjustments	Aug. 01, 2011 Auto-Bake as initially reported	Jun. 29, 2013 Auto-Bake Food Processing Backlog	Aug. 01, 2011 Auto-Bake Food Processing Backlog	Jun. 29, 2013 Auto-Bake Food Processing Customer Relationships	Aug. 01, 2011 Auto-Bake Food Processing Customer Relationships	Dec. 02, 2011 Drake	Jun. 30, 2012 Drake	Dec. 02, 2011 Drake Measurement Period Adjustments	Dec. 02, 2011 Drake as initially reported	Dec. 02, 2011 Drake Book and Tax Basis Difference Tangible Assets and Liability Accounts	Dec. 02, 2011 Drake Book and Tax Basis Difference Intangible Assets	Jun. 29, 2013 Drake Backlog	Dec. 02, 2011 Drake Backlog	Jun. 29, 2013 Drake Customer Relationships	Dec. 02, 2011 Drake Customer Relationships	Dec. 21, 2011 Armor Inox	Dec. 21, 2011 Armor Inox Measurement Period Adjustments	Dec. 21, 2011 Armor Inox as initially reported	Jun. 29, 2013 Armor Inox Backlog	Dec. 21, 2011 Armor Inox Backlog	Jun. 29, 2013 Armor Inox Customer Relationships	Dec. 21, 2011 Armor Inox Customer Relationships	Jun. 29, 2013 Armor Inox Developed Technology	Dec. 21, 2011 Armor Inox Developed Technology	Mar. 14, 2012 Baker	Jun. 29, 2013 Baker Customer Relationships	Mar. 14, 2012 Baker Customer Relationships	Sep. 05, 2012 Stewart [Member]	Sep. 05, 2012 Stewart [Member] Measurement Period Adjustments	Sep. 05, 2012 Stewart [Member] as initially reported	Jun. 29, 2013 Stewart [Member] Food Processing Backlog	Sep. 05, 2012 Stewart [Member] Food Processing Backlog	Jun. 29, 2013 Stewart [Member] Food Processing Customer Relationships	Sep. 05, 2012 Stewart [Member] Food Processing Customer Relationships	Oct. 31, 2012 Nieco Corporation [Member]	Oct. 31, 2012 Nieco Corporation [Member] Measurement Period Adjustments	Oct. 31, 2012 Nieco Corporation [Member] as initially reported	Jun. 29, 2013 Nieco Corporation [Member] Commercial Foodservice Backlog	Oct. 31, 2012 Nieco Corporation [Member] Commercial Foodservice Backlog	Jun. 29, 2013 Nieco Corporation [Member] Commercial Foodservice Customer Relationships	Oct. 31, 2012 Nieco Corporation [Member] Commercial Foodservice Customer Relationships	Dec. 31, 2012 Viking Range Corporation [Member]	Jun. 29, 2013 Viking Range Corporation [Member] Residential Kitchen [Member] Backlog	Dec. 31, 2012 Viking Range Corporation [Member] Residential Kitchen [Member] Backlog	Jun. 29, 2013 Viking Range Corporation [Member] Residential Kitchen [Member] Customer Relationships	Dec. 31, 2012 Viking Range Corporation [Member] Residential Kitchen [Member] Customer Relationships	Jun. 29, 2013 Distributors [Member]	Jul. 05, 2011 Trade Names [Member] Danfotech Food Processing	Jul. 22, 2011 Trade Names [Member] Maurer Food Processing	Aug. 01, 2011 Trade Names [Member] Auto-Bake Food Processing	Dec. 02, 2011 Trade Names [Member] Drake	Dec. 21, 2011 Trade Names [Member] Armor Inox	Sep. 05, 2012 Trade Names [Member] Stewart [Member] Food Processing	Oct. 31, 2012 Trade Names [Member] Nieco Corporation [Member] Commercial Foodservice	Dec. 31, 2012 Trade Names [Member] Viking Range Corporation [Member] Residential Kitchen [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Asset, Current																											$ 400,000				$ 400,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent																											2,363,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities, Net	100,000					100,000	100,000																								100,000	2,300,000
Payments to Acquire Businesses, Net of Cash Acquired	6,100,000													3,300,000						22,500,000							21,700,000	400,000									28,700,000									10,300,000			27,800,000							23,900,000							373,000,000					23,600,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill									100,000		400,000		100,000				300,000		100,000					200,000		1,900,000								100,000		2,500,000					3,800,000		1,100,000		1,100,000			800,000					400,000		5,900,000					100,000		6,500,000			2,500,000		50,000,000		600,000	600,000	2,000,000	3,200,000	3,400,000	4,600,000	3,100,000	100,000,000
Acquisition, other intangibles, amortization period								3 months		4 years		3 years				4 years		3 years					3 months		5 years								1 month		5 years					2 years		6 years		7 years			5 years					6 months		5 years					3 months		4 years			3 months		5 years
Acquisition, additional assets purchased	730,000		700,000	730,000	0
Long-term deferred tax liabilities	137,000			91,000	46,000															1,218,000	(817,000)	2,035,000															3,072,000	(903,000)	3,975,000
Current deferred tax asset	235,000			235,000	0																						446,000		56,000	390,000
Long-term deferred tax liability																											(2,363,000)		32,000	(2,395,000)
Contingent consideration	1,500,000			0	1,500,000																																												4,457,000	457,000	4,000,000					2,876,000	(182,000)	3,058,000
Business Combination, Contingent Consideration, Asset																																																	4,500,000							2,900,000
Business Combination, Provisional Information Adjustment, Working Capital		(400,000)																																															1,300,000
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net															(583,000)
Business Acquisition, Preacquisition Contingency, Amount of Settlement																																																																				$ (8,700,000)