Quarterly report pursuant to Section 13 or 15(d)

Loans - Summary of Loans by Class Modified as Troubled Debt Restructurings (Detail)

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Loans - Summary of Loans by Class Modified as Troubled Debt Restructurings (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2019
USD ($)
Loan
Financing Receivable, Troubled Debt Restructuring [Line Items]  
Number of Loans | Loan 8
Pre- Modification Outstanding Recorded Investment $ 54,071
Post- Modification Outstanding Recorded Investment $ 54,891
Commercial and Industrial Loans  
Financing Receivable, Troubled Debt Restructuring [Line Items]  
Number of Loans | Loan 2
Pre- Modification Outstanding Recorded Investment $ 12,779
Post- Modification Outstanding Recorded Investment $ 12,562
Consumer Loans  
Financing Receivable, Troubled Debt Restructuring [Line Items]  
Number of Loans | Loan 1
Pre- Modification Outstanding Recorded Investment $ 549
Post- Modification Outstanding Recorded Investment $ 531
Real Estate Loans  
Financing Receivable, Troubled Debt Restructuring [Line Items]  
Number of Loans | Loan 5
Pre- Modification Outstanding Recorded Investment $ 40,743
Post- Modification Outstanding Recorded Investment $ 41,798