GOODWILL AND INTANGIBLE ASSETS, NET - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Changes in goodwill
Balance at the beginning of the period	$ 90,851	$ 99,414
Acquisition of Mortgage Builder		9,135
Goodwill impairment	(55,740)	(37,473)
Acquisition of Owners		19,775
Acquisition of CastleLine	28,125
Acquisition of Acquired RentRange and Investability Businesses	19,565
Balance at the end of the period	82,801	90,851	$ 99,414
Mortgage Services
Changes in goodwill
Balance at the beginning of the period	32,733	12,958
Acquisition of Mortgage Builder		0
Goodwill impairment	0	0
Acquisition of Owners		19,775
Acquisition of CastleLine	28,125
Acquisition of Acquired RentRange and Investability Businesses	19,565
Balance at the end of the period	80,423	32,733	12,958
Financial Services
Changes in goodwill
Balance at the beginning of the period	2,378	2,378
Acquisition of Mortgage Builder		0
Goodwill impairment	0	0
Acquisition of Owners		0
Acquisition of CastleLine	0
Acquisition of Acquired RentRange and Investability Businesses	0
Balance at the end of the period	2,378	2,378	2,378
Technology Services
Changes in goodwill
Balance at the beginning of the period	55,740	84,078
Acquisition of Mortgage Builder		9,135
Goodwill impairment	(55,740)	(37,473)	0
Acquisition of Owners		0
Acquisition of CastleLine	0
Acquisition of Acquired RentRange and Investability Businesses	0
Balance at the end of the period	$ 0	$ 55,740	$ 84,078