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Premises and Equipment - Additional Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Feb. 15, 2022
Property, Plant and Equipment [Abstract] |  |  |  |  |
Depreciation | $ 9,200 | $ 6,500 | $ 26,893 | $ 20,585 |
First Midwest |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |
Premises and equipment |  |  |  |  | $ 111,867

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