INCOME TAXES (Tables)

3 Months Ended

Mar. 31, 2013

INCOME TAXES

Reconciliation between the effective income tax rate, as computed on loss before income taxes, and the statutory federal income tax rate

	Three Months Ended
	March 31
	2013					2012
	(in thousands)
Income tax benefit at the statutory federal rate	$	(8,156	)	(35.0	)%	$	(7,888	)	(35.0	)%
Federal income tax effects of:
Increase in valuation allowances	312			1.3		4,660			20.7
Alternative fuel tax credit	(1,180		)	(5.0	)	—			—
Effect of permanent differences and other	18			0.1		(235		)	(1.0	)
State income taxes	(902		)	(3.9	)	(911		)	(4.1	)
Total income tax benefit	$	(9,908	)	(42.5	)%	$	(4,374	)	(19.4	)%