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Allowance for Credit Losses on Loans - Troubled Debt Restructurings (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 USD ($) investment_security | Jun. 30, 2019 USD ($) investment_security | Jun. 30, 2020 USD ($) investment_security | Jun. 30, 2019 USD ($) investment_security
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 6 | 6 | 10
Pre-mod outstanding principal balance | $ 0 | $ 1,847 | $ 680 | $ 2,145
Post-mod outstanding principal balance | 0 | 1,817 | 738 | 2,114
Financial impact due to TDR taken as additional provision | $ 0 | $ 29 | $ 21 | $ 31
Number that defaulted during the period | investment_security | 1 | 0 | 2,000 | 1
Recorded investment of TDR's that defaulted during the period | $ 735 | $ 0 | $ 1,037 | $ 7
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Commercial real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 3 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 487 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 549 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Consumer |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 2 | 2 | 4
Pre-mod outstanding principal balance | $ 0 | $ 93 | $ 172 | $ 377
Post-mod outstanding principal balance | 0 | 95 | 169 | 377
Financial impact due to TDR taken as additional provision | $ 0 | $ 27 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 1 |  | 2,000 | 0
Recorded investment of TDR's that defaulted during the period | $ 735 |  | $ 1,037 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Commercial and industrial |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 4 | 1 | 6
Pre-mod outstanding principal balance | $ 0 | $ 1,754 | $ 21 | $ 1,768
Post-mod outstanding principal balance | 0 | 1,722 | 20 | 1,737
Financial impact due to TDR taken as additional provision | $ 0 | $ 2 | $ 21 | $ 31
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 1
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 7
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Construction |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 0 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 0 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 0 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Agriculture production |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 0 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 0 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 0 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Leases |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 0 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 0 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 0 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
CRE non-owner occupied | Commercial real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 1 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 257 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 251 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
CRE owner occupied | Commercial real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 0 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 0 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 0 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Multifamily | Commercial real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 0 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 0 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 0 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Farmland | Commercial real estate |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 2 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 230 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 298 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
SFR 1-4 1st DT Liens | Consumer |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 0 | 1
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 0 | $ 163
Post-mod outstanding principal balance | 0 | 0 | 0 | 162
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 1 | 0 | 2,000 | 0
Recorded investment of TDR's that defaulted during the period | $ 735 | $ 0 | $ 1,037 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
SFR HELOCs and junior liens | Consumer |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 2 | 2 | 3
Pre-mod outstanding principal balance | $ 0 | $ 93 | $ 172 | $ 214
Post-mod outstanding principal balance | 0 | 95 | 169 | 215
Financial impact due to TDR taken as additional provision | $ 0 | $ 27 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0
Other | Consumer |  |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |  |
Number | investment_security | 0 | 0 | 0 | 0
Pre-mod outstanding principal balance | $ 0 | $ 0 | $ 0 | $ 0
Post-mod outstanding principal balance | 0 | 0 | 0 | 0
Financial impact due to TDR taken as additional provision | $ 0 | $ 0 | $ 0 | $ 0
Number that defaulted during the period | investment_security | 0 | 0 | 0 | 0
Recorded investment of TDR's that defaulted during the period | $ 0 | $ 0 | $ 0 | $ 0
Financial impact due to the default of previous TDR taken as charge-offs or additional provisions | $ 0 | $ 0 | $ 0 | $ 0

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