RESTRICTED INVESTMENTS AND BOND COLLATERAL (Tables)

9 Months Ended

Sep. 30, 2015

Schedule of Available-for-sale Securities [Line Items]

Components of restricted investments and bond collateral

The Company’s restricted investments and bond collateral consist of the following:

	September 30, 2015		December 31, 2014
	(In thousands)
Coal - U.S. Segment:
Reclamation bond collateral:
Absaloka Mine	$	11,807	$	11,781
Rosebud Mine	3,145		3,145
Beulah Mine	1,270		1,270
Buckingham acquisition escrow	—		34,000
Coal - Canada Segment:
Reclamation bond collateral - PMRU	18,220		18,199
Reclamation bond collateral - CVRI	33,870		31,866
Coal - WMLP Segment:
Reclamation bond collateral - Ohio	8,255		10,634
Reclamation bond collateral - Kemmerer Mine	27,655		25,282
Power Segment:
Power contract collateral	17,700		12,600
Corporate Segment:
Postretirement medical benefit bonds	8,891		8,780
Workers’ compensation bonds	6,859		6,832
Total restricted investments and bond collateral	$	137,672	$	164,389

Carrying value and estimated fair value of restricted investments and bond collateral

The Company’s carrying value and estimated fair value of its restricted investments and bond collateral at September 30, 2015 were as follows:

	Carrying Value		Fair Value		Fair Value Hierarchy
	(In thousands)
Cash and cash equivalents	$	100,363	$	100,363	Level 1
Time deposits	2,455		2,455		Level 1
Available-for-sale	34,854		34,854		Level 1
	$	137,672	$	137,672

Amortized cost, gross unrealized holding gains and losses and fair value of available-for-sale securities

The cost basis, gross unrealized holding gains and losses, and fair value of available-for-sale securities at September 30, 2015 were as follows (in thousands):

Cost basis	$	35,475
Gross unrealized holding gains	206
Gross unrealized holding losses	(827		)
Fair value	$	34,854

Restricted Investments and Bond Collateral

Schedule of Available-for-sale Securities [Line Items]

Investments Classified by Contractual Maturity Date

Maturities of available-for-sale securities were as follows at September 30, 2015:

	Cost Basis		Fair Value
	(In thousands)
Due within one year	$	1,258	$	1,189
Due in five years or less	15,015		14,640
Due after five years to ten years	4,356		4,110
Due in more than ten years	14,846		14,915
	$	35,475	$	34,854