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Component: (Network and Table)
Network
2417407 - Disclosure - Components Of Net Periodic Pension Benefit Cost (Details)
(http://www.emcorgroup.com/role/ComponentsOfNetPeriodicPensionBenefitCostDetails)
TableSchedule of Defined Benefit Plans Disclosures [Table]
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0000105634 (http://www.sec.gov/CIK)
Legal Entity [Axis]United Kingdom Subsidiary
Defined Benefit Plans and Other Postretirement Benefit Plans [Axis]UK Plan
Defined Benefit Plan Disclosure [Line Items]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
2014-01-01 - 2014-12-31
Interest cost
10,320,000  
11,603,000  
14,027,000  
Expected return on plan assets
(14,227,000) 
(16,181,000) 
(16,888,000) 
Amortization of unrecognized loss
2,047,000  
2,526,000  
2,029,000  
Net periodic pension cost (income)
(1,860,000) 
 
(2,052,000) 
 
(832,000)