FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Mar. 31, 2015

Fair Value Disclosures [Abstract]

Summary of financial assets at fair value

The table below sets forth, by level, the Company’s financial assets that are accounted for at fair value at March 31, 2015:

	Level 1
	(In thousands)
Assets:
Available-for-sale investments included in Restricted investments and bond collateral	$	34,591
Available-for-sale investments included in Reclamation deposits	33,487
Total assets	$	68,078

Estimated fair values of Company's debt

The estimated fair values of the Company’s debt with fixed and variable interest rates are as follows:

	Fixed Interest Rate				Variable Interest Rate
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(In thousands)				(In thousands)
December 31, 2014	$	345,498	$	348,250	$	341,300	$	344,750
March 31, 2015	$	345,617	$	350,875	$	413,712	$	421,818