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Income Taxes - Schedule of Income Tax Asset (Detail) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Current: |  |
Income tax asset , Current, Total | $ 4,937 | $ 10,402
Deferred: |  |
Income tax asset , Deferred, Total | 40,492 | 36,849
Income tax asset (liability), Total | 45,429 | 47,251
Federal [Member] |  |
Current: |  |
Income tax asset , Current, Total | 4,399 | 7,414
Deferred: |  |
Income tax asset , Deferred, Total | 31,566 | 28,799
State [Member] |  |
Current: |  |
Income tax asset , Current, Total | 538 | 2,988
Deferred: |  |
Income tax asset , Deferred, Total | $ 8,926 | $ 8,050

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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b),(c) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 + Details
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