ACQUISITIONS - RentRange, Investability and Onit Solutions (Details) - USD ($) shares in Thousands, $ in Thousands	Oct. 09, 2015	Jun. 30, 2016	Dec. 31, 2015
Acquisitions
Goodwill		$ 81,406	$ 82,801
RentRange, Investability and Onit Solutions
Acquisitions
Business combination, consideration transferred	$ 24,800
Cash payment to acquire business	$ 17,500
Number of shares exchanged for acquisition (in thousands)	247
Value of common stock paid at acquisition	$ 7,300
Contingent consideration arrangements, payment period	4 years
Cash	$ 3
Accounts receivable, net	245
Premises and equipment, net	1,206
Other assets	199
Software	1,265
Trademarks and trade names	1,205
Databases/other	910
Non-compete agreements	330
Customer relationships	255
Goodwill	19,565
Total assets	25,183
Accounts payable and accrued expenses	(391)
Purchase price	$ 24,792