SEGMENT REPORTING (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) segment	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)
Segment Reporting [Abstract]
Number of reporting segments | segment	2
SEGMENT REPORTING
Revenue	$ 197,438	$ 240,483
Cost of revenue	147,194	177,953
Gross profit (loss)	50,244	62,530
Selling, general and administrative expenses	43,124	47,701
Income (loss) from operations	7,120	14,829
Total other income (expense), net	(12,092)	(5,083)
Income (loss) before income taxes and non-controlling interests	(4,972)	9,746
Total assets:
Total assets	831,773		$ 865,164
Operating Segment | Mortgage Market
SEGMENT REPORTING
Revenue	167,338	204,723
Cost of revenue	111,073	140,150
Gross profit (loss)	56,265	64,573
Selling, general and administrative expenses	23,374	28,682
Income (loss) from operations	32,891	35,891
Total other income (expense), net	16	10
Income (loss) before income taxes and non-controlling interests	32,907	35,901
Total assets:
Total assets	285,989		304,346
Operating Segment | Real Estate Market
SEGMENT REPORTING
Revenue	15,280	20,063
Cost of revenue	18,554	22,143
Gross profit (loss)	(3,274)	(2,080)
Selling, general and administrative expenses	4,118	4,325
Income (loss) from operations	(7,392)	(6,405)
Total other income (expense), net	2	0
Income (loss) before income taxes and non-controlling interests	(7,390)	(6,405)
Total assets:
Total assets	82,574		64,624
Other Businesses, Corporate and Eliminations
SEGMENT REPORTING
Revenue	14,820	15,697
Cost of revenue	17,567	15,660
Gross profit (loss)	(2,747)	37
Selling, general and administrative expenses	15,632	14,694
Income (loss) from operations	(18,379)	(14,657)
Total other income (expense), net	(12,110)	(5,093)
Income (loss) before income taxes and non-controlling interests	(30,489)	$ (19,750)
Total assets:
Total assets	$ 463,210		$ 496,194