REVENUE FROM CONTRACTS WITH CUSTOMERS Disaggregation of revenues from contracts with customer by revenue type (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Service fee and commission income	$ 11,186	$ 9,815
Extended Warranty | IWS | Vehicle service agreement fees
Disaggregation of Revenue [Line Items]
Service fee and commission income	7,707	5,366
Extended Warranty | IWS | GAP commissions
Disaggregation of Revenue [Line Items]
Service fee and commission income	269	265
Extended Warranty | Trinity | Maintenance support service fees
Disaggregation of Revenue [Line Items]
Service fee and commission income	554	1,968
Extended Warranty | Trinity | Warranty product commissions
Disaggregation of Revenue [Line Items]
Service fee and commission income	861	582
Extended Warranty | PWSC | Homebuilder warranty service fees
Disaggregation of Revenue [Line Items]
Service fee and commission income	1,437	1,423
Extended Warranty | PWSC | Homebuilder warranty commissions
Disaggregation of Revenue [Line Items]
Service fee and commission income	$ 358	$ 211