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INCOME TAXES (Tables) | 3 Months Ended
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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 | )%

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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