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Income Taxes - Schedule of Income Tax Asset (Detail) - USD ($) $ in Thousands | Dec. 31, 2017 | Dec. 31, 2016
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Current: |  |
Income tax asset , Current, Total | $ 14,659 | $ 4,937
Deferred: |  |
Income tax asset , Deferred, Total | 25,387 | 40,492
Income tax asset (liability), Total | 40,046 | 45,429
Federal [Member] |  |
Current: |  |
Income tax asset , Current, Total | 11,713 | 4,399
Deferred: |  |
Income tax asset , Deferred, Total | 16,557 | 31,566
State [Member] |  |
Current: |  |
Income tax asset , Current, Total | 2,946 | 538
Deferred: |  |
Income tax asset , Deferred, Total | $ 8,830 | $ 8,926

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- Definition Income tax asset net + References No definition available. + Details
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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=84230637&loc=d3e32537-109319 + Details
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