Inventories (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following: 

	March 31,		December 31
	2014		2013
	(In thousands)
Coal	$	98,125	$	117,531
Repair parts and supplies	126,681		137,497
Work-in-process	—		9,133
	$	224,806	$	264,161