SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013 segment	Dec. 31, 2012	Dec. 31, 2011
SEGMENT REPORTING
Number of reportable segments									3
SEGMENT REPORTING
Revenue									$ 768,357	$ 568,360	$ 423,687
Cost of revenue									492,480	366,201	275,849
Gross profit	78,300	76,574	69,138	51,865	53,685	49,701	51,467	47,306	275,877	202,159	147,838
Selling, general and administrative expenses									113,810	74,712	62,131
Income from operations									162,067	127,447	85,707
Other income (expense), net									(19,734)	(2,798)	203
Income before income taxes and non-controlling interests	38,556	38,614	34,485	30,678	31,599	30,982	32,128	29,940	142,333	124,649	85,910
Total Assets:
Total Assets	724,838				429,226				724,838	429,226
Operating Segment | Mortgage Services
SEGMENT REPORTING
Revenue									596,152	452,796	311,921
Cost of revenue									374,713	285,586	202,035
Gross profit									221,439	167,210	109,886
Selling, general and administrative expenses									46,515	25,099	15,278
Income from operations									174,924	142,111	94,608
Other income (expense), net									(136)	(1,713)	248
Income before income taxes and non-controlling interests									174,788	140,398	94,856
Total Assets:
Total Assets	308,214				132,924				308,214	132,924
Operating Segment | Financial Services
SEGMENT REPORTING
Revenue									92,958	64,522	71,181
Cost of revenue									55,328	46,737	51,096
Gross profit									37,630	17,785	20,085
Selling, general and administrative expenses									15,571	13,415	15,634
Income from operations									22,059	4,370	4,451
Other income (expense), net									(10)	(27)	(34)
Income before income taxes and non-controlling interests									22,049	4,343	4,417
Total Assets:
Total Assets	55,930				37,782				55,930	37,782
Operating Segment | Technology Services
SEGMENT REPORTING
Revenue									103,891	74,189	56,094
Cost of revenue									84,538	54,634	36,874
Gross profit									19,353	19,555	19,220
Selling, general and administrative expenses									12,442	8,888	4,867
Income from operations									6,911	10,667	14,353
Other income (expense), net									7	(25)	(49)
Income before income taxes and non-controlling interests									6,918	10,642	14,304
Total Assets:
Total Assets	274,766				64,570				274,766	64,570
Corporate Items and Eliminations
SEGMENT REPORTING
Revenue									(24,644)	(23,147)	(15,509)
Cost of revenue									(22,099)	(20,756)	(14,156)
Gross profit									(2,545)	(2,391)	(1,353)
Selling, general and administrative expenses									39,282	27,310	26,352
Income from operations									(41,827)	(29,701)	(27,705)
Other income (expense), net									(19,595)	(1,033)	38
Income before income taxes and non-controlling interests									(61,422)	(30,734)	(27,667)
Total Assets:
Total Assets	$ 85,928				$ 193,950				$ 85,928	$ 193,950