Quarterly report pursuant to Section 13 or 15(d)

Description of Business (Narrative) (Details)

v3.10.0.1
Description of Business (Narrative) (Details) - USD ($)
Dec. 31, 2018
Sep. 14, 2018
Secured Senior Term Notes, Series 2018-1, Class A | Senior Subordinated Notes    
Debt Instrument [Line Items]    
Debt instrument, face amount   $ 72,000,000
Stated interest rate (in percentage)   4.98%
Secured Senior Term Notes, Series 2018-1, Class B | Senior Subordinated Notes    
Debt Instrument [Line Items]    
Debt instrument, face amount   $ 28,000,000
Stated interest rate (in percentage)   5.98%
Notes Receivable    
Debt Instrument [Line Items]    
Financing receivable $ 10,000,000 $ 10,000,000