Acquisitions and Purchase Accounting - Additional Information (Details) (USD $)			1 Months Ended					1 Months Ended		1 Months Ended								1 Months Ended		1 Months Ended		1 Months Ended					1 Months Ended		1 Months Ended					0 Months Ended		0 Months Ended							1 Months Ended		1 Months Ended					1 Months Ended		1 Months Ended		1 Months Ended				1 Months Ended
	Apr. 12, 2011 Beech	Apr. 12, 2011 Beech Commercial Foodservice Trade Names	Apr. 30, 2011 Beech Commercial Foodservice Backlog M	Apr. 12, 2011 Beech Commercial Foodservice Backlog	May 27, 2011 Lincat	May 27, 2011 Lincat Measurement Period Adjustments	May 27, 2011 Lincat Commercial Foodservice Trade Names	May 31, 2011 Lincat Commercial Foodservice Backlog M	May 27, 2011 Lincat Commercial Foodservice Backlog	May 31, 2011 Lincat Commercial Foodservice Customer Relationships Y	May 27, 2011 Lincat Commercial Foodservice Customer Relationships	Jul. 31, 2011 Danfotech	Jul. 05, 2011 Danfotech	Jul. 05, 2011 Danfotech Measurement Period Adjustments	Jul. 05, 2011 Danfotech Book and Tax Basis Difference Tangible Assets and Liability Accounts	Jul. 05, 2011 Danfotech Book and Tax Basis Difference Intangible Assets	Jul. 05, 2011 Danfotech Food Processing Trade Names	Jul. 31, 2011 Danfotech Food Processing Backlog M	Jul. 05, 2011 Danfotech Food Processing Backlog Maximum	Jul. 31, 2011 Danfotech Food Processing Customer Relationships Y	Jul. 05, 2011 Danfotech Food Processing Customer Relationships	Jul. 31, 2011 Danfotech Food Processing Developed Technology Y	Jul. 05, 2011 Danfotech Food Processing Developed Technology	Jul. 22, 2011 Maurer	Jul. 22, 2011 Maurer Measurement Period Adjustments	Jul. 22, 2011 Maurer Food Processing Trade Names	Jul. 31, 2011 Maurer Food Processing Customer Relationships Y	Jul. 22, 2011 Maurer Food Processing Customer Relationships	Jul. 31, 2011 Maurer Food Processing Developed Technology Y	Jul. 22, 2011 Maurer Food Processing Developed Technology	Aug. 01, 2011 Auto-Bake	Aug. 01, 2011 Auto-Bake Measurement Period Adjustments	Aug. 01, 2011 Auto-Bake Food Processing Trade Names	Sep. 02, 2011 Auto-Bake Food Processing Backlog M	Aug. 01, 2011 Auto-Bake Food Processing Backlog	Sep. 02, 2011 Auto-Bake Food Processing Customer Relationships Y	Aug. 01, 2011 Auto-Bake Food Processing Customer Relationships	Dec. 02, 2011 Drake	Dec. 02, 2011 Drake Measurement Period Adjustments	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	Dec. 02, 2011 Drake Trade Names	Dec. 31, 2011 Drake Backlog M	Dec. 02, 2011 Drake Backlog	Dec. 31, 2011 Drake Customer Relationships Y	Dec. 02, 2011 Drake Customer Relationships	Dec. 21, 2011 Armor Inox	Dec. 21, 2011 Armor Inox Measurement Period Adjustments	Dec. 21, 2011 Armor Inox Trade Names	Dec. 31, 2011 Armor Inox Backlog Y	Dec. 21, 2011 Armor Inox Backlog	Dec. 31, 2011 Armor Inox Customer Relationships Y	Dec. 21, 2011 Armor Inox Customer Relationships	Dec. 31, 2011 Armor Inox Developed Technology Y	Dec. 21, 2011 Armor Inox Developed Technology	Mar. 14, 2012 Baker	Mar. 14, 2012 Baker Customer Relationships	Dec. 31, 2011 Baker Developed Technology Y
Business Acquisition [Line Items]
Acquisition, purchase price	$ 13,000,000				$ 82,100,000								$ 6,100,000											$ 3,300,000	$ 600,000						$ 22,500,000							$ 21,700,000									$ 28,700,000									$ 10,300,000
Acquisition, other intangibles subject to non-amortization provision		1,900,000					15,200,000										600,000									600,000							2,000,000									3,200,000							3,900,000
Acquisition, other intangibles, amortized				100,000					500,000		17,600,000								100,000		400,000		100,000					300,000		100,000					200,000		1,900,000							100,000		2,500,000					5,200,000		1,300,000		1,800,000		800,000
Acquisition, other intangibles, amortization period			3					3		5								3		4		3					4		3					3		5							1		5					2		5		6				5
Acquisition, additional assets purchased													730,000	730,000
Working capital adjustment, refund												400,000
Long-term deferred tax liabilities					9,650,000	(4,153,000)							190,000	144,000	100,000	100,000															1,218,000	(817,000)															3,975,000	0
Current deferred tax asset																																						390,000	0	400,000
Long-term deferred tax liability																																						$ 2,395,000	$ 0	$ 100,000	$ 2,300,000