Guarantees - Indemnification, Representations and Warranties related to loans sold - Additional Information (Details) - USD ($)	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Securitization \| Guarantee on loans sold or serviced with representation and warranties
Guarantor Obligations
Repurchased Loans	$ 0	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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