Rendering

Component: (Network and Table)
Network
2422403 - Disclosure - Employee Benefit Plans - Schedule of Net Periodic Postretirement Benefit Cost (Details)
(http://www.armstrongenergyinc.com/role/EmployeeBenefitPlansScheduleOfNetPeriodicPostretirementBenefitCostDetails)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001532288 (http://www.sec.gov/CIK)
Postemployment Benefits [Abstract]Period [Axis]
2016-01-01 - 2016-12-31
2015-01-01 - 2015-12-31
Postemployment Benefits [Abstract]
 
 
Service cost for benefits earned
917,000  
1,216,000  
Interest cost on accumulated postretirement benefit obligation
171,000  
122,000  
Amortization of prior service cost
95,000  
104,000  
Curtailment gain recognized
0  
(209,000) 
Net periodic postretirement cost
1,183,000  
 
1,233,000