Annual report pursuant to Section 13 and 15(d)

Loans and Leases - Activity for SBA Loans Held for Sale (Detail)

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Loans and Leases - Activity for SBA Loans Held for Sale (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward]      
Balance at beginning of period $ 9,390 $ 6,394  
Originations 76,765 79,146 $ 109,111
Sales (80,116) (75,951)  
Principal paydowns and amortization (19) (199)  
Balance at end of period 6,020 9,390 6,394
Real Estate      
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward]      
Balance at beginning of period 5,194 3,746  
Originations 43,001 39,243  
Sales (45,251) (37,790)  
Principal paydowns and amortization (1) (5)  
Balance at end of period 2,943 5,194 3,746
Commercial and Industrial      
Financing Receivable, Reclassification From Portfolio Loans To Loans Held For Sale [Roll Forward]      
Balance at beginning of period 4,196 2,648  
Originations 33,764 39,903  
Sales (34,865) (38,161)  
Principal paydowns and amortization (18) (194)  
Balance at end of period $ 3,077 $ 4,196 $ 2,648