FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2018

Fair Value Disclosures [Abstract]

Schedule of Financial Instruments Measured at Fair Value

The financial instruments measured at fair value on a recurring basis are summarized below:

	Fair Value Measurements at September 30, 2018							Fair Value Measurements at December 31, 2017
Description	Level 1		Level 2		Level 3			Level 1		Level 2		Level 3
Murray Energy Guarantees	$	—	$	—	$	(818	)	$	—	$	—	$	(1,040	)

Schedule of Fair Value of Financial Instruments

The carrying amounts and fair values of financial instruments for which the fair value option was not elected are as follows:

	September 30, 2018				December 31, 2017
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Long-Term Debt	$	848,523	$	905,597	$	897,097	$	931,768