COMPONENTS OF COAL WORKERS’ PNEUMOCONIOSIS (CWP) AND WORKERS’ COMPENSATION NET PERIODIC BENEFIT COSTS

9 Months Ended

Sep. 30, 2018

Retirement Benefits [Abstract]

COMPONENTS OF COAL WORKERS’ PNEUMOCONIOSIS (CWP) AND WORKERS’ COMPENSATION NET PERIODIC BENEFIT COSTS

COMPONENTS OF COAL WORKERS’ PNEUMOCONIOSIS (CWP) AND WORKERS’ COMPENSATION NET PERIODIC BENEFIT COSTS:

Components of Net Periodic Benefit Cost are as follows:

	CWP												Workers' Compensation
	Three Months Ended September 30,						Nine Months Ended September 30,						Three Months Ended September 30,						Nine Months Ended September 30,
	2018			2017			2018			2017			2018			2017			2018			2017
Service Cost	$	1,662		$	1,280		$	4,987		$	3,842		$	1,558		$	1,569		$	4,673		$	4,706
Interest Cost	1,311			1,013			3,934			3,038			571			580			1,712			1,740
Amortization of Actuarial Gain	(213		)	(1,908		)	(640		)	(5,724		)	(20		)	(150		)	(59		)	(449		)
State Administrative Fees and Insurance Bond Premiums	—			—			—			—			675			609			1,986			1,969
Net Periodic Benefit Cost	$	2,760		$	385		$	8,281		$	1,156		$	2,784		$	2,608		$	8,312		$	7,966