XML 67 R53.htm IDEA: XBRL DOCUMENT v3.8.0.1
Fair Values of Assets and Liabilities, Other Relevant Data (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Nov. 30, 2005
May 31, 2005
Structured Financing Notes Payable [Member]        
Schedule of Fair Value Assets And Liabilities [Line Items]        
Aggregate unpaid principal balance of notes payable $ 101,314 $ 102,035    
Aggregate fair value of notes payable 9,240 12,276    
Loans and Fees Receivable, at Fair Value [Member]        
Schedule of Fair Value Assets And Liabilities [Line Items]        
Aggregate unpaid principal balance within loans and fees receivable that are reported at fair value 4,416 6,251    
Aggregate fair value of loans and fees receivable that are reported at fair value 1,869 3,484    
Aggregate fair value of receivables carried at fair value that are 90 days or more past due (which also coincides with finance charge and fee non-accrual policies) 5 6    
Aggregate excess of balance of unpaid principal receivables within loans and fees receivable that are reported at fair value and are 90 days or more past due (which also coincides with finance charge and fee non-accrual policies) over the fair value of such loans and fees receivable 107 204    
Loans and Fees Receivable Pledged as Collateral under Structured Financings, at Fair Value [Member]        
Schedule of Fair Value Assets And Liabilities [Line Items]        
Aggregate unpaid principal balance within loans and fees receivable that are reported at fair value 11,349 16,614    
Aggregate fair value of loans and fees receivable that are reported at fair value 9,240 12,164    
Aggregate fair value of receivables carried at fair value that are 90 days or more past due (which also coincides with finance charge and fee non-accrual policies) 17 22    
Aggregate excess of balance of unpaid principal receivables within loans and fees receivable that are reported at fair value and are 90 days or more past due (which also coincides with finance charge and fee non-accrual policies) over the fair value of such loans and fees receivable $ 369 $ 562    
5.875% Convertible Senior Notes Due 2035 [Member]        
Schedule of Fair Value Assets And Liabilities [Line Items]        
Interest rate on notes     5.875% 5.875%