DISCONTINUED OPERATIONS (Details 12) (Warehouse lines of credit, LendingTree Loans, Discontinued operations, USD $) In Millions, unless otherwise specified	0 Months Ended
Jul. 21, 2012 item	Sep. 30, 2012	Dec. 31, 2011
Warehouse lines of credit \| LendingTree Loans \| Discontinued operations
Warehouse Lines of Credit
Outstanding borrowings		$ 0	$ 197.7
Number of lines of credit expired	3

Amount borrowed under the credit facility as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

Name:	us-gaap_LineOfCreditFacilityAmountOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant