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Acquisition and Divestiture Activity - Additional Information (Details) - USD ($) $ in Thousands |  | 3 Months Ended
--- | --- | ---
Apr. 01, 2024 | Mar. 31, 2025 | Mar. 31, 2024
Business Acquisition [Line Items] |  |  |
Purchase price of loans at acquisition | $ 610,691 |  |
Par value of acquired loans at acquisition | 679,302 |  |
Allowance for credit losses at acquisition | 26,725 |  |
CapStar Financial Holdings, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Other intangible assets | $ 46,125 |  |
Transaction costs, expensed |  | $ 400 | $ 700
CapStar Financial Holdings, Inc. | Core deposit |  |  |
Business Acquisition [Line Items] |  |  |
Estimated useful lives | 10 years |  |

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- Definition Amount of allowance for credit loss at acquisition date of financing receivable purchased with credit deterioration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 19 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-19 + Details
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