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v3.23.3

Acquisition and Divestiture Activity (Details) $ / shares in Units, $ in Thousands |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Oct. 26, 2023 USD ($) $ / shares | Nov. 18, 2022 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Business Acquisition [Line Items] |  |  |  |  |
Assets |  |  | $ 49,059,448 |  | $ 46,763,372
Total loans |  |  | 32,577,834 |  | 31,123,641
Deposits |  |  | 37,252,676 |  | $ 35,000,830
Deposits, health savings accounts |  | $ 382,000 |  |  |
Gain on sale of health savings accounts business |  | $ 90,700 |  |  |
First Midwest |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Transaction costs, expensed |  |  | 23,200 | $ 100,600 |
CapStar Financial Holdings, Inc. | Subsequent Event |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Shares exchange ratio | 1.155 |  |  |  |
Value of issuance common stock shares | $ 344,400 |  |  |  |
Share price (in dollars per share) | $ / shares | $ 16.64 |  |  |  |
Weighted average closing stock price | 30 days |  |  |  |
CapStar Financial Holdings, Inc. | CapStar Financial Holdings, Inc. |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Assets |  |  | 3,300,000 |  |
Total loans |  |  | 2,300,000 |  |
Deposits |  |  | $ 2,800,000 |  |

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