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4. Debt (Tables)
9 Months Ended
Sep. 30, 2016
Debt Disclosure [Abstract]  
Debt Outstanding
         Amount Outstanding at 
         September 30,   December 31, 
         2016   2015 
         (In thousands) 
Description  Interest Rate  Maturity        
               
Warehouse lines of credit  5.50% over one month Libor (Minimum 6.50%)  April 2019  $56,197   $91,504 
                 
   5.50% over one month Libor (Minimum 6.25%)  August 2019   14,539    73,940 
                 
   6.75% over a commercial paper rate (Minimum 7.75%)  November 2019   13,000    31,017 
                 
Residual interest financing  11.75% over one month Libor  April 2018   6,856    9,042 
                 
                 
Subordinated renewable notes  Weighted average rate of 8.01% and 9.04% at September 30, 2016 and December 31, 2015 , respectively  Weighted average maturity of July 2018 and October 2017 at September 30, 2016 and December 31, 2015, respectively   14,353    15,138 
                 
         $104,945   $220,641