SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012 item	Dec. 31, 2011	Dec. 31, 2010
SEGMENT REPORTING
Number of reportable segments									3
SEGMENT REPORTING
Revenue	$ 141,101	$ 143,988	$ 144,205	$ 139,066	$ 131,956	$ 109,793	$ 93,268	$ 88,670	$ 568,360	$ 423,687	$ 301,378
Cost of revenue									366,201	275,849	189,059
Gross profit	53,685	49,701	51,467	47,306	47,492	36,454	30,171	33,721	202,159	147,838	112,319
Selling, general and administrative expenses									74,712	62,131	57,352
Income from operations									127,447	85,707	54,967
Other (expense) income, net									(2,798)	203	804
Income before income taxes and non-controlling interests	31,599	30,982	32,128	29,940	30,757	20,805	16,537	17,811	124,649	85,910	55,771
Total Assets:
Total Assets	429,226				224,159				429,226	224,159
Mortgage Services
SEGMENT REPORTING
Revenue									452,796	311,921	187,133
Cost of revenue									285,586	202,035	117,691
Gross profit									167,210	109,886	69,442
Selling, general and administrative expenses									25,099	15,278	13,718
Income from operations									142,111	94,608	55,724
Other (expense) income, net									(1,713)	248	781
Income before income taxes and non-controlling interests									140,398	94,856	56,505
Total Assets:
Total Assets	132,924				112,780				132,924	112,780
Financial Services
SEGMENT REPORTING
Revenue									64,522	71,181	77,617
Cost of revenue									46,737	51,096	56,575
Gross profit									17,785	20,085	21,042
Selling, general and administrative expenses									13,415	15,634	20,739
Income from operations									4,370	4,451	303
Other (expense) income, net									(27)	(34)	(50)
Income before income taxes and non-controlling interests									4,343	4,417	253
Total Assets:
Total Assets	37,782				41,276				37,782	41,276
Technology Services
SEGMENT REPORTING
Revenue									74,189	56,094	52,013
Cost of revenue									54,634	36,874	28,909
Gross profit									19,555	19,220	23,104
Selling, general and administrative expenses									8,888	4,867	4,985
Income from operations									10,667	14,353	18,119
Other (expense) income, net									(25)	(49)	(60)
Income before income taxes and non-controlling interests									10,642	14,304	18,059
Total Assets:
Total Assets	64,570				32,279				64,570	32,279
Corporate Items and Eliminations
SEGMENT REPORTING
Revenue									(23,147)	(15,509)	(15,385)
Cost of revenue									(20,756)	(14,156)	(14,116)
Gross profit									(2,391)	(1,353)	(1,269)
Selling, general and administrative expenses									27,310	26,352	17,910
Income from operations									(29,701)	(27,705)	(19,179)
Other (expense) income, net									(1,033)	38	133
Income before income taxes and non-controlling interests									(30,734)	(27,667)	(19,046)
Total Assets:
Total Assets	$ 193,950				$ 37,824				$ 193,950	$ 37,824