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Income Taxes - Schedule of Income Tax Asset (Detail) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
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Current: |  |
Income tax asset , Current, Total | $ 8,018 | $ 9,346
Deferred: |  |
Income tax asset , Deferred, Total | 21,522 | 26,241
Income tax asset (liability), Total | 29,540 | 35,587
Federal [Member] |  |
Current: |  |
Income tax asset , Current, Total | 5,408 | 5,890
Deferred: |  |
Income tax asset , Deferred, Total | 14,779 | 17,580
State [Member] |  |
Current: |  |
Income tax asset , Current, Total | 2,610 | 3,456
Deferred: |  |
Income tax asset , Deferred, Total | $ 6,743 | $ 8,661

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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/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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