ORGANIZATION (Details 2) (USD $)	3 Months Ended		6 Months Ended		1 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Sep. 30, 2011 RealEstate.com Internet domain names and trademarks	Jun. 30, 2013 Lending Tree Loans Discover Bank	Jun. 30, 2013 Lending Tree Loans Discover Bank	Feb. 07, 2012 Lending Tree Loans Discover Bank
Organization- Discontinued Operations
Proceeds from sale of assets					$ 8,300,000
Gain on sale of internet domain names and trademarks					7,800,000
Amount of proceeds for sale of assets								55,900,000
Amount received from sale of assets prior to closing								8,000,000
Amount received from sale of assets on the closing								37,900,000
Amount receivable for sale of assets								10,000,000
Gain from sale of discontinued operations, net of tax	$ 10,003,000	$ 24,313,000	$ 10,101,000	$ 24,313,000		$ 10,000,000
Period for which marketing related services are to be provided							17 months