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Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands |  | 1 Months Ended | 3 Months Ended |
--- | --- | --- | --- | ---
Jan. 04, 2021 | May 31, 2021 | Mar. 31, 2022 | Mar. 31, 2021 | Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Proceeds from sale of non-controlling interest in BMT |  |  | $ 0 | $ 23,125 |
Special dividend (shares) |  |  |  | 0.15389 |
Deposits held |  |  | 16,415,560 |  | $ 16,777,924
Discontinued Operations | BankMobile Technologies, Inc. |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Proceeds from sale of non-controlling interest in BMT | $ 23,100 |  |  |  |
Additional consideration from sale of non-controlling interest in BMT |  | $ 3,700 |  |  |
Share consideration, shares | 4,876,387 |  |  |  |
Special dividend (shares) | 0.15389 |  |  |  |
Share consideration related to severance, shares | 1,348,748 |  |  |  |
Percentage of common stock | 52.00% |  |  |  |
Expenses under the deposit servicing agreement |  |  | 17,800 | $ 13,700 |
Deposits held |  |  | $ 2,200,000 |  | $ 1,800,000
Discontinued Operations | BankMobile Technologies, Inc. | Minimum |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Transition services agreement, term | 1 year |  |  |  |
Discontinued Operations | BankMobile Technologies, Inc. | Maximum |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |
Transition services agreement, term | 10 years |  |  |  |

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