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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 |  |  |  |  |  |  |  |
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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) |  |  |  |  |  |  |  |

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