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Acquisition Activities - Intangible Assets (Details) - USD ($) $ in Thousands |  |  |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 03, 2023 | Oct. 01, 2022 | Sep. 01, 2022 | Apr. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2022
Acquisition Activities |  |  |  |  |  |
Amortization period for intangible assets |  |  |  |  | 9 years 9 months 18 days |
Core deposit intangible |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Amortization period |  |  |  |  | 10 years |
Small Business Administration ("SBA") servicing rights |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Acquired through acquisition |  |  |  |  |  | $ 3,126
Internally developed technology |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Amortization period |  |  |  |  | 5 years |
Cambr |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Acquired through acquisition |  |  |  | $ 18,000 |  |
Cambr | Core deposit intangible |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Acquired through acquisition | $ 1,700,000 |  |  |  |  |
Cambr | Other intangible assets |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Acquired through acquisition | $ 18,000 |  |  |  |  |
Amortization period for intangible assets | 9 years 4 months 24 days |  |  |  |  |
Rock Canyon Bank | Core deposit intangible |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Acquired through acquisition |  |  | $ 13,300 |  |  |
Amortization period |  |  | 10 years |  |  |
Rock Canyon Bank | Small Business Administration ("SBA") servicing rights |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Acquired through acquisition |  |  | $ 3,100 |  |  |
Bank of Jackson Hole |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Amount transferred from available-for-sale securities to held-to-maturity |  | $ 75,300 |  |  |  |
Amortization period |  | 10 years |  |  |  |
Bank of Jackson Hole | Core deposit intangible |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Acquired through acquisition |  | $ 29,400 |  |  |  |
Bank of Jackson Hole | Wealth management intangibles |  |  |  |  |  |
Acquisition Activities |  |  |  |  |  |
Acquired through acquisition |  | $ 1,300 |  |  |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 350 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(3) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482665/350-30-50-1 + Details
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