SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) segment	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
SEGMENT INFORMATION
Number of reportable segments | segment									1
Revenue	$ 78,341	$ 69,804	$ 55,136	$ 50,935	$ 43,864	$ 41,306	$ 42,144	$ 40,036	$ 254,216	$ 167,350	$ 139,240
Mortgage Products [Member]
SEGMENT INFORMATION
Revenue									165,272	134,137	123,091
Non-mortgage Products [Member]
SEGMENT INFORMATION
Revenue									$ 88,944	$ 33,213	$ 16,149