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OTHER ACCRUED LIABILITIES
9 Months Ended
Sep. 30, 2017
Payables and Accruals [Abstract]  
OTHER ACCRUED LIABILITIES
OTHER ACCRUED LIABILITIES:

 
September 30,
2017
 
December 31, 2016
Subsidence Liability
$
108,313

 
$
104,437

Accrued Payroll and Benefits
16,462

 
17,326

Equipment Lease Rental
13,163

 
15,286

Deferred Revenue
8,915

 
10,520

Accrued Other Taxes
8,765

 
12,732

Litigation
3,100

 
12,532

Short-Term Incentive Compensation
2,507

 
6,073

Other
14,836

 
21,986

Current Portion of Long-Term Liabilities:
 
 
 
Postretirement Benefits Other than Pensions
43,025

 
40,611

Asset Retirement Obligations
28,675

 
26,259

Workers' Compensation
12,280

 
13,596

Pneumoconiosis Benefits
9,004

 
10,763

Total Other Accrued Liabilities
$
269,045

 
$
292,121