DISCONTINUED OPERATIONS (Details 11) (Discontinued operations, USD $) In Millions, unless otherwise specified	0 Months Ended			12 Months Ended		12 Months Ended								12 Months Ended				12 Months Ended			12 Months Ended
	Jul. 21, 2012 Warehouse lines of credit Lending Tree Loans item	Dec. 31, 2011 Warehouse lines of credit Lending Tree Loans	Dec. 31, 2011 Committed warehouse lines of credit	Dec. 31, 2012 First warehouse line	Jan. 30, 2012 First warehouse line	Dec. 31, 2012 Uncommitted line of credit facility	Oct. 30, 2011 Uncommitted line of credit facility	Dec. 31, 2012 Uncommitted line of credit facility Loans being sold to lender	Dec. 31, 2012 Uncommitted line of credit facility Loans not being sold to lender	Dec. 31, 2011 Uncommitted line of credit facility Lending Tree Loans	Oct. 31, 2011 Uncommitted line of credit facility Lending Tree Loans	Dec. 31, 2012 Second warehouse line	Oct. 28, 2011 Second warehouse line	Dec. 31, 2012 Second warehouse line Loans being sold to lender	Dec. 31, 2012 Second warehouse line Loans not being sold to lender	Dec. 31, 2012 Second warehouse line Minimum	Dec. 31, 2012 Second warehouse line Maximum	Dec. 31, 2012 Third warehouse line	Dec. 13, 2011 Third warehouse line	Dec. 31, 2012 Fourth warehouse line of credit facility	Dec. 31, 2012 Fourth warehouse line of credit facility Minimum	Dec. 31, 2012 Fourth warehouse line of credit facility Maximum	Jan. 09, 2012 Fourth warehouse line of credit facility Lending Tree Loans
Warehouse Lines of Credit
Outstanding borrowings		$ 197.7
Number of lines of credit expired	3
Borrowing capacity			275.0		50.0	125.0	25.0			325.0	25.0	125.0	100.0						100.0	100.0			100.0
Maximum borrowing capacity under the credit agreement before amendment												$ 100.0
Variable interest rate basis				30-day LIBOR		30-day LIBOR								30-day Adjusted LIBOR	30-day Adjusted LIBOR			30-day LIBOR
Minimum LIBOR interest rate (as a percent)				2.00%				2.00%	2.00%
Margin add to variable interest rate (as a percent)				2.25%		1.50%			1.50%							1.50%	1.75%	3.25%
Interest rate (a a percent)																					3.25%	3.75%