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Income Taxes - Schedule of Income Tax Asset (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
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