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(4) Debt (Tables)
9 Months Ended
Sep. 30, 2020
Debt Disclosure [Abstract]  
Schedule of debt outstanding
 

         Amount Outstanding at 
          September   December 31, 
          2020   2019 
          (In thousands) 
Description  Interest Rate  Maturity         
Warehouse lines of credit  5.50% over one month Libor (Minimum 6.50%)   February 2021   $11,539   $40,558 
                   
   3.00% over one month Libor (Minimum 3.75%)   November 2020    20,559    96,225 
                   
   4.00% over a commercial paper rate (Minimum 5.00%)   December 2021         
                   
Residual interest financing  8.60%   January 2026    32,243    40,000 
                   
Subordinated renewable notes  Weighted average rate of 10.24% and 9.75% at September 30, 2020 and December 31, 2019 , respectively   Weighted average maturity of December 2022 and April 2022 at September 30, 2020 and December 31, 2019, respectively    20,242    17,534 
           $84,583   $194,317