DISCONTINUED OPERATIONS (Details 10) (Lending Tree Loans, Discontinued operations, Loan loss obligations, USD $)	Dec. 31, 2013 loan
Loss Contingencies [Line Items]
Number of loans sold	235,900
Original principal balance	$ 39,400,000,000
Number of loans with losses	499
Original principal balance of loans with losses	68,400,000
Amount of aggregate losses	29,200,000
2013
Loss Contingencies [Line Items]
Number of loans sold	0
Original principal balance	0
Number of loans with losses	0
Original principal balance of loans with losses	0
Amount of aggregate losses	0
2012
Loss Contingencies [Line Items]
Number of loans sold	9,200
Original principal balance	1,900,000,000
Number of loans with losses	0
Original principal balance of loans with losses	0
Amount of aggregate losses	0
2011
Loss Contingencies [Line Items]
Number of loans sold	12,500
Original principal balance	2,700,000,000
Number of loans with losses	1
Original principal balance of loans with losses	300,000
Amount of aggregate losses	100,000
2010
Loss Contingencies [Line Items]
Number of loans sold	12,400
Original principal balance	2,800,000,000
Number of loans with losses	4
Original principal balance of loans with losses	1,100,000
Amount of aggregate losses	100,000
2009
Loss Contingencies [Line Items]
Number of loans sold	12,800
Original principal balance	2,800,000,000
Number of loans with losses	5
Original principal balance of loans with losses	1,200,000
Amount of aggregate losses	200,000
2008
Loss Contingencies [Line Items]
Number of loans sold	11,000
Original principal balance	2,200,000,000
Number of loans with losses	33
Original principal balance of loans with losses	6,900,000
Amount of aggregate losses	2,200,000
2007
Loss Contingencies [Line Items]
Number of loans sold	36,300
Original principal balance	6,100,000,000
Number of loans with losses	160
Original principal balance of loans with losses	22,100,000
Amount of aggregate losses	8,200,000
2006
Loss Contingencies [Line Items]
Number of loans sold	55,000
Original principal balance	7,900,000,000
Number of loans with losses	207
Original principal balance of loans with losses	24,500,000
Amount of aggregate losses	13,400,000
2005 and prior years
Loss Contingencies [Line Items]
Number of loans sold	86,700
Original principal balance	13,000,000,000
Number of loans with losses	89
Original principal balance of loans with losses	12,300,000
Amount of aggregate losses	$ 5,000,000