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5. Interest Income and Interest Expense (Tables)
6 Months Ended
Jun. 30, 2017
Interest Income And Interest Expense Tables  
Interest income
    Three Months Ended     Six Months Ended
    June 30,     June 30,
      2017       2016       2017     2016
      (In thousands)     (In thousands)
             
Interest on finance receivables   $ 107,344     $ 101,624     $ 211,840     $198,252
Other interest income     141       85       220     120
Interest income   $ 107,485     $ 101,709     $ 212,060     $198,372
Interest expense
    Three Months Ended     Six Months Ended  
    June 30,     June 30,  
      2017       2016       2017       2016  
      (In thousands)     (In thousands)  
               
Securitization trust debt   $ 20,537     $ 16,875     $ 40,617     $ 31,639  
Warehouse lines of credit     2,379       2,244       4,087       4,666  
Residual interest financing     –        245             516  
Subordinated renewable notes     320       363       620       727  
Interest expense   $ 23,236     $ 19,727     $ 45,324     $ 37,548