DISCONTINUED OPERATIONS (Details 9) (Discontinued operations, USD $) In Millions, unless otherwise specified	0 Months Ended		3 Months Ended						3 Months Ended		3 Months Ended
	Jul. 21, 2012 Warehouse lines of credit Lending Tree Loans item	Mar. 31, 2013 First warehouse line	Mar. 31, 2013 First warehouse line Loans being sold to lender	Mar. 31, 2013 First warehouse line Loans not being sold to lender	Mar. 31, 2013 First warehouse line Minimum Loans being sold to lender	Mar. 31, 2013 First warehouse line Maximum Loans being sold to lender	Mar. 31, 2013 Uncommitted line of credit facility Loans being sold to lender	Mar. 31, 2013 Uncommitted line of credit facility Loans not being sold to lender	Mar. 31, 2013 Second warehouse line	Mar. 31, 2013 Third warehouse line	Mar. 31, 2013 Third warehouse line Minimum	Mar. 31, 2013 Third warehouse line Maximum
Warehouse Lines of Credit
Number of lines of credit expired	3
Borrowing capacity	$ 325.0	$ 125.0							$ 100.0	$ 100.0
Variable interest rate basis			30-day Adjusted LIBOR	30-day Adjusted LIBOR					30-day LIBOR
Alternate interest rate (as a percent)							2.00%	2.00%
Margin add to variable interest rate (as a percent)					1.50%	1.75%		1.50%	3.25%
Interest rate (a a percent)											3.25%	3.75%