Goodwill and Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands |
Mar. 31, 2021 |
Dec. 31, 2020 |
|---|---|---|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 49,710 | $ 49,710 |
| Accumulated Amortization | (33,015) | (31,508) |
| Net Carrying Amount | 16,695 | 18,202 |
| Indefinite-lived trade name intangible | 7,040 | 7,040 |
| Core deposit intangible | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 41,745 | 41,745 |
| Accumulated Amortization | (27,628) | (26,440) |
| Net Carrying Amount | 14,117 | 15,305 |
| Customer relationship intangible | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 5,265 | 5,265 |
| Accumulated Amortization | (2,920) | (2,630) |
| Net Carrying Amount | 2,345 | 2,635 |
| Other | ||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 2,700 | 2,700 |
| Accumulated Amortization | (2,467) | (2,438) |
| Net Carrying Amount | $ 233 | $ 262 |