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Other Liabilities Held for Sale (Details) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($) | Mar. 12, 2021 branch
Business Acquisition [Line Items] |  |  |
Gain on sale of business | $ 5,900,000 | $ 8,100,000 |
Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |
Business Acquisition [Line Items] |  |  |
Other liabilities held-for-sale | 0 |  |
Disposal Group, Held-for-sale, Not Discontinued Operations | Illinois Branches |  |  |
Business Acquisition [Line Items] |  |  |
Number of branches sold | branch |  |  | 4
Gain on sale of business | $ 5,300,000 |  |

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