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Summary of Significant Accounting Policies - Transfer of Financial Assets (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Accounting Policies [Abstract] |  |  |
Gain (loss) on sale of financial assets | $ 0 | $ 0 | $ 0

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- References No definition available. + Details
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- Definition Amount of gain (loss) on sale or disposal of assets utilized in financial service operations. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
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