Investment in Loans (Schedule of Consumer Loans: Delinquency Status) (Details) - Consumer loans	Dec. 31, 2023	Dec. 31, 2022
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	81.00%	90.30%
30 to 59 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Percent past due	7.90%	4.20%
60 to 89 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Percent past due	6.60%	2.30%
90-119 Days or More Past Due [Member]
Financing Receivable, Past Due [Line Items]
Percent past due	4.00%	3.10%
Financing Receivables, Equal to Greater than 120 Days Past Due [Member]
Financing Receivable, Past Due [Line Items]
Percent past due	0.50%	0.10%