Fair Value - Additional Information (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Fair Value Disclosures [Abstract] | |||
| Outstanding balances in impaired loans | $ 41,200 | $ 55,800 | |
| Impaired loans, related allowance | 5,500 | 6,400 | |
| Foreclosed assets re-measured after initial recognition | 15,000 | 19,200 | |
| Write-downs of allowance for foreclosed assets after initial recognition | 2,400 | 873 | |
| Noninterest gain (loss) Mortgage banking, net for changes in fair value of LHFS | 1,500 | 1,400 | $ 3,000 |
| Interest earned on LHFS included in Interest and fees on LHFS and LHFI | 5,900 | 4,900 | $ 4,900 |
| GNMA optional repurchase loans | $ 57,062 | $ 61,564 | |