DISCONTINUED OPERATIONS (Details 2) (Lending Tree Loans, USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Sep. 30, 2013 goal	Dec. 31, 2012
Fair Value Measurements
Net liabilities			$ (31,859,000)	$ (30,528,000)
Loans held for sale | Discontinued operations
Changes in assets that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Total net gains (losses) included in earnings (realized and unrealized)	(380,000)	(147,000)
Fair value on a recurring basis | Discontinued operations
Fair Value Measurements
Net liabilities			0	0
Interest Rate Lock Commitments | Discontinued operations
Fair Value Measurements
Number of goals to be achieved by modifying valuation calculation			2
Notional value outstanding			0	0
Changes in assets and liabilities that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Total net gains (losses) included in earnings (realized and unrealized)	0	73,378,000
Forward delivery contracts | Discontinued operations
Changes in assets and liabilities that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Total net gains (losses) included in earnings (realized and unrealized)	0	846,000
Fair Value, Inputs, Level 3 | Loans held for sale | Discontinued operations
Changes in assets that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period	167,000	295,000
Transfers into Level 3	124,000	564,000
Total net gains (losses) included in earnings (realized and unrealized)	(380,000)	(147,000)
Purchases, sales, and settlements
Sales	90,000	(491,000)
Settlements	(1,000)	(221,000)
Balance at the ending of the period	0	0
Fair Value, Inputs, Level 3 | Interest Rate Lock Commitments | Discontinued operations
Changes in assets and liabilities that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period	0	9,122,000
Total net gains (losses) included in earnings (realized and unrealized)	0	73,378,000
Purchases, sales, and settlements
Sales	0	(5,640,000)
Settlements	0	(3,401,000)
Transfers of IRLCs to closed loans	0	(73,459,000)
Balance at the ending of the period	0	0
Fair Value, Inputs, Level 3 | Forward delivery contracts | Discontinued operations
Changes in assets and liabilities that are measured at fair value on a recurring basis using significant unobservable inputs (Level 3)
Balance at the beginning of the period	0	19,000
Transfers out of Level 3	0	(845,000)
Total net gains (losses) included in earnings (realized and unrealized)	0	846,000
Purchases, sales, and settlements
Sales	0	(20,000)
Balance at the ending of the period	$ 0	$ 0