GOODWILL AND INTANGIBLE ASSETS, NET - Goodwill (Details) - USD ($)		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Changes in goodwill
Balance at the beginning of the period		$ 82,801,000	$ 90,851,000
Goodwill impairment		0	(55,740,000)	$ (37,500,000)
Balance at the end of the period		86,283,000	82,801,000	90,851,000
Change in the fair value of Equator Earn Out		0	(7,591,000)	(37,924,000)
Mortgage Services
Changes in goodwill
Balance at the beginning of the period		80,423,000	32,733,000
Goodwill impairment			0
Balance at the end of the period		83,905,000	80,423,000	32,733,000
Financial Services
Changes in goodwill
Balance at the beginning of the period		2,378,000	2,378,000
Goodwill impairment			0
Balance at the end of the period		2,378,000	2,378,000	2,378,000
Technology Services
Changes in goodwill
Balance at the beginning of the period		0	55,740,000
Goodwill impairment			(55,740,000)	(37,500,000)
Balance at the end of the period		0	0	$ 55,740,000
CastleLine
Changes in goodwill
Goodwill, acquired during the period			28,125,000
Goodwill, purchase price allocation adjustment	[1]	(1,395,000)
CastleLine | Mortgage Services
Changes in goodwill
Goodwill, acquired during the period			28,125,000
Goodwill, purchase price allocation adjustment	[1]	(1,395,000)
CastleLine | Financial Services
Changes in goodwill
Goodwill, acquired during the period			0
Goodwill, purchase price allocation adjustment	[1]	0
CastleLine | Technology Services
Changes in goodwill
Goodwill, acquired during the period			0
Goodwill, purchase price allocation adjustment	[1]	0
RentRange, Investability and Onit Solutions
Changes in goodwill
Goodwill, acquired during the period			19,565,000
Goodwill, purchase price allocation adjustment	[2]	50,000
RentRange, Investability and Onit Solutions | Mortgage Services
Changes in goodwill
Goodwill, acquired during the period			19,565,000
Goodwill, purchase price allocation adjustment	[2]	50,000
RentRange, Investability and Onit Solutions | Financial Services
Changes in goodwill
Goodwill, acquired during the period			0
Goodwill, purchase price allocation adjustment	[2]	0
RentRange, Investability and Onit Solutions | Technology Services
Changes in goodwill
Goodwill, acquired during the period			$ 0
Goodwill, purchase price allocation adjustment	[2]	0
Granite
Changes in goodwill
Goodwill, acquired during the period		4,827,000
Granite | Mortgage Services
Changes in goodwill
Goodwill, acquired during the period		4,827,000
Granite | Financial Services
Changes in goodwill
Goodwill, acquired during the period		0
Granite | Technology Services
Changes in goodwill
Goodwill, acquired during the period		$ 0

[1] During the second quarter of 2016, goodwill was revised to reflect a purchase accounting measurement period adjustment related to the CastleLine acquisition. See Note 5.

[2] During the third quarter of 2016, goodwill was revised to reflect a purchase accounting measurement period adjustment related to the RentRange and Investability acquisition. See Note 5.