v3.21.2

Investment in Loans (Schedule of Consumer Loans: Delinquency Status) (Details) - Consumer loans | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Financing Receivable, Past Due [Line Items] |  |
Percent past due | 100.00% | 100.00%
Financial Asset, 1 to 29 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Percent past due | 96.70% | 90.40%
30 to 59 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Percent past due | 1.40% | 3.40%
60 to 89 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Percent past due | 1.00% | 3.30%
90-119 Days or More Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Percent past due | 0.90% | 2.80%
Financing Receivables, Equal to Greater than 120 Days Past Due [Member] |  |
Financing Receivable, Past Due [Line Items] |  |
Percent past due | 0.00% | 0.10%

X
- Definition Percentage of financing receivable balance that is past due. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition 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. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
Data Type: | na
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- Details
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- Details
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- Details
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Data Type: | na
Balance Type: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |