SEGMENT REPORTING (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting [Abstract]
Number of reporting segments | segment			2
SEGMENT REPORTING
Revenue	$ 218,556	$ 250,685	$ 415,994	$ 491,168
Cost of revenue	163,206	185,393	310,400	363,346
Gross profit (loss)	55,350	65,292	105,594	127,822
Selling, general and administrative expenses	42,924	52,470	86,048	100,171
Income (loss) from operations	12,426	12,822	19,546	27,651
Total other income (expense), net	(9,355)	(662)	(21,447)	(5,745)
Income (loss) before income taxes and non-controlling interests	3,071	12,160	(1,901)	21,906
Total assets:
Total assets	809,896		809,896		$ 865,164
Operating Segment | Mortgage Market
SEGMENT REPORTING
Revenue	178,662	210,195	346,000	414,918
Cost of revenue	115,329	144,326	226,402	284,476
Gross profit (loss)	63,333	65,869	119,598	130,442
Selling, general and administrative expenses	20,604	29,805	43,978	58,487
Income (loss) from operations	42,729	36,064	75,620	71,955
Total other income (expense), net	(4)	102	12	112
Income (loss) before income taxes and non-controlling interests	42,725	36,166	75,632	72,067
Total assets:
Total assets	265,463		265,463		304,346
Operating Segment | Real Estate Market
SEGMENT REPORTING
Revenue	24,145	25,130	39,425	45,193
Cost of revenue	28,191	26,844	46,745	48,987
Gross profit (loss)	(4,046)	(1,714)	(7,320)	(3,794)
Selling, general and administrative expenses	5,180	5,551	9,298	9,876
Income (loss) from operations	(9,226)	(7,265)	(16,618)	(13,670)
Total other income (expense), net	12	0	14	0
Income (loss) before income taxes and non-controlling interests	(9,214)	(7,265)	(16,604)	(13,670)
Total assets:
Total assets	85,080		85,080		64,624
Other Businesses, Corporate and Eliminations
SEGMENT REPORTING
Revenue	15,749	15,360	30,569	31,057
Cost of revenue	19,686	14,223	37,253	29,883
Gross profit (loss)	(3,937)	1,137	(6,684)	1,174
Selling, general and administrative expenses	17,140	17,114	32,772	31,808
Income (loss) from operations	(21,077)	(15,977)	(39,456)	(30,634)
Total other income (expense), net	(9,363)	(764)	(21,473)	(5,857)
Income (loss) before income taxes and non-controlling interests	(30,440)	$ (16,741)	(60,929)	$ (36,491)
Total assets:
Total assets	$ 459,353		$ 459,353		$ 496,194