LOANS HELD FOR SALE (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
product
Dec. 31, 2015
USD ($)
Loans held for sale      
Consumer loans held for sale period   21 days  
Carried at fair value      
Origination of consumer loans held for sale, at fair value   $ 45,274  
Proceeds from the sale of consumer loans held for sale   (43,410)  
Net gain on sale of consumer loans held for sale   334  
Balance, end of period   2,198  
Carried at lower of cost or fair value      
Balance, beginning of period $ 514 514  
Origination of consumer loans held for sale   334,792 $ 137,551
Proceeds from the sale of consumer loans held for sale   (336,497) (138,015)
Net gain on sale of consumer loans held for sale   2,501 978
Balance, end of period   $ 1,310 514
Short term installment loan      
Loans held for sale      
Percentage of loan receivable held for sale (as a percent) 100.00%    
Consumer loans held for sale period 21 days    
Short term line of credit and credit card      
Loans held for sale      
Percentage of loan receivable held for sale (as a percent)   90.00%  
Number Of Consumer Loans Held For Sale Products | product   2  
Consumer loans held for sale period   2 days  
Interest retained (as a percent)   10.00%  
Carried at fair value      
Balance, beginning of period $ 7,000 $ 7,000  
Balance, end of period   $ 20,000 $ 7,000