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Allowance for Credit Losses on Loans - Summary of Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | $ 57,911 | $ 32,064 | $ 30,616 | $ 32,582 | $ 32,582
Charge-offs | (491) | (293) | (1,001) | (1,019) | (3,639)
Recoveries | 230 | 560 | 1,122 | 2,368 | 3,363
Provision (benefit) | 22,089 | 537 | 30,089 | (1,063) | (1,690)
Ending balance | 79,739 | 32,868 | 79,739 | 32,868 | 30,616
Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 18,913 |  |
Ending balance |  |  |  |  | 18,913
Commercial real estate |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 29,253 | 12,330 | 11,995 | 12,944 | 12,944
Charge-offs | 0 | 0 | 0 | 0 | (746)
Recoveries | 9 | 10 | 202 | 1,391 | 1,528
Provision (benefit) | 15,588 | (241) | 20,805 | (2,236) | (1,731)
Ending balance | 44,850 | 12,099 | 44,850 | 12,099 | 11,995
Commercial real estate | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 11,848 |  |
Ending balance |  |  |  |  | 11,848
Consumer |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 19,592 | 10,841 | 10,084 | 11,051 | 11,051
Charge-offs | (277) | (155) | (407) | (362) | (770)
Recoveries | 166 | 465 | 719 | 724 | 1,310
Provision (benefit) | 3,684 | (23) | 4,485 | (285) | (1,507)
Ending balance | 23,165 | 11,128 | 23,165 | 11,128 | 10,084
Consumer | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 8,284 |  |
Ending balance |  |  |  |  | 8,284
Commercial and industrial |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 3,867 | 5,854 | 4,867 | 5,610 | 5,610
Charge-offs | (214) | (138) | (594) | (657) | (2,104)
Recoveries | 55 | 84 | 181 | 242 | 513
Provision (benefit) | 310 | 681 | 1,525 | 1,286 | 848
Ending balance | 4,018 | 6,481 | 4,018 | 6,481 | 4,867
Commercial and industrial | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | (1,961) |  |
Ending balance |  |  |  |  | (1,961)
Construction |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 4,595 | 2,815 | 3,388 | 2,497 | 2,497
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0 | 0
Provision (benefit) | 2,180 | 81 | 2,454 | 399 | 891
Ending balance | 6,775 | 2,896 | 6,775 | 2,896 | 3,388
Construction | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 933 |  |
Ending balance |  |  |  |  | 933
Agriculture production |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 593 | 224 | 261 | 480 | 480
Charge-offs | 0 | 0 | 0 | 0 | (19)
Recoveries | 0 | 1 | 20 | 11 | 12
Provision (benefit) | 326 | 39 | 817 | (227) | (212)
Ending balance | 919 | 264 | 919 | 264 | 261
Agriculture production | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | (179) |  |
Ending balance |  |  |  |  | (179)
Leases |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 11 | 0 | 21 | 0 | 0
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0 | 0
Provision (benefit) | 1 | 0 | 3 | 0 | 21
Ending balance | 12 | 0 | 12 | 0 | 21
Leases | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | (12) |  |
Ending balance |  |  |  |  | (12)
CRE non-owner occupied | Commercial real estate |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 18,034 | 6,268 | 5,948 | 7,401 | 7,401
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 5 | 6 | 193 | 1,383 | 1,486
Provision (benefit) | 8,052 | (92) | 13,249 | (2,602) | (2,939)
Ending balance | 26,091 | 6,182 | 26,091 | 6,182 | 5,948
CRE non-owner occupied | Commercial real estate | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 6,701 |  |
Ending balance |  |  |  |  | 6,701
CRE owner occupied | Commercial real estate |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 5,366 | 2,323 | 2,027 | 2,711 | 2,711
Charge-offs | 0 | 0 | 0 | 0 | (746)
Recoveries | 4 | 4 | 9 | 8 | 42
Provision (benefit) | 3,340 | (113) | 4,393 | (505) | 20
Ending balance | 8,710 | 2,214 | 8,710 | 2,214 | 2,027
CRE owner occupied | Commercial real estate | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 2,281 |  |
Ending balance |  |  |  |  | 2,281
Multifamily | Commercial real estate |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 5,140 | 3,271 | 3,352 | 2,429 | 2,429
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0 | 0
Provision (benefit) | 3,441 | (189) | 2,948 | 653 | 923
Ending balance | 8,581 | 3,082 | 8,581 | 3,082 | 3,352
Multifamily | Commercial real estate | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 2,281 |  |
Ending balance |  |  |  |  | 2,281
Farmland | Commercial real estate |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 713 | 468 | 668 | 403 | 403
Charge-offs | 0 | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0 | 0
Provision (benefit) | 755 | 153 | 215 | 218 | 265
Ending balance | 1,468 | 621 | 1,468 | 621 | 668
Farmland | Commercial real estate | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 585 |  |
Ending balance |  |  |  |  | 585
SFR 1-4 1st DT Liens | Consumer |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 5,650 | 2,500 | 2,306 | 2,676 | 2,676
Charge-offs | (11) | (2) | (11) | (2) | (2)
Recoveries | 2 | 3 | 412 | 5 | 54
Provision (benefit) | 2,374 | 75 | 2,633 | (103) | (422)
Ending balance | 8,015 | 2,576 | 8,015 | 2,576 | 2,306
SFR 1-4 1st DT Liens | Consumer | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 2,675 |  |
Ending balance |  |  |  |  | 2,675
SFR HELOCs and junior liens | Consumer |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 11,196 | 7,301 | 6,183 | 7,582 | 7,582
Charge-offs | (23) | 0 | (23) | 0 | (3)
Recoveries | 92 | 354 | 140 | 536 | 935
Provision (benefit) | 843 | (554) | 1,170 | (1,017) | (2,331)
Ending balance | 12,108 | 7,101 | 12,108 | 7,101 | 6,183
SFR HELOCs and junior liens | Consumer | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 4,638 |  |
Ending balance |  |  |  |  | 4,638
Other | Consumer |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance | 2,746 | 1,040 | 1,595 | 793 | 793
Charge-offs | (243) | (153) | (373) | (360) | (765)
Recoveries | 72 | 108 | 167 | 183 | 321
Provision (benefit) | 467 | 456 | 682 | 835 | 1,246
Ending balance | $ 3,042 | $ 1,451 | 3,042 | $ 1,451 | 1,595
Other | Consumer | Impact of CECL Adoption |  |  |  |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |  |  |  |
Beginning balance |  |  | $ 971 |  |
Ending balance |  |  |  |  | $ 971

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