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Income Taxes - Schedule of Income Tax Asset (Liability) (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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Current: |  |
Income tax asset (liability), Current, Total | $ 3,721 | $ 47,233
Deferred: |  |
Income tax asset (liability), Current, Total | 13,257 | 800
Income tax asset (liability), Total | 16,978 | 48,033
Federal [Member] |  |
Current: |  |
Income tax asset (liability), Current, Total | (1,074) | 25,999
Deferred: |  |
Income tax asset (liability), Current, Total | 10,968 | 1,661
State [Member] |  |
Current: |  |
Income tax asset (liability), Current, Total | 4,795 | 21,234
Deferred: |  |
Income tax asset (liability), Current, Total | $ 2,289 | $ (861)

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- Definition Income Tax Asset Net + References No definition available. + Details
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- Details
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- Details
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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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