HERITAGE HEALTH BENEFIT EXPENSES (Tables)

12 Months Ended

Dec. 31, 2015

Heritage Health Benefit Expenses [Abstract]

Components of costs of benefits to former mining operation employees

The components of these expenses are as follows:

	Years Ended December 31,
	2015			2014		2013
	(In thousands)
Health care benefits	$	8,179		$	9,473	$	12,579
Combined benefit fund payments	1,794			1,966		2,240
Workers’ compensation benefits (credit)	(583		)	230		(1,212		)
Black lung benefits (credit)	5,183			1,719		(189		)
Total	$	14,573		$	13,388	$	13,418