ORGANIZATION (Details 2) (USD $) In Millions, except Per Share data, unless otherwise specified	0 Months Ended
Dec. 26, 2012	Dec. 31, 2012
Common Stock Special Dividend Per Share Paid	$ 1.00
Chairman and CEO \| Errors Related to Release of Awards
Common stock special dividend overpaid	$ 0.4
Over Accrual of Dividend for Unvested Shares		$ 0.2

Represents the carrying value as of the balance sheet date of over accrual of dividends for unvested shares.

No definition available.

Name:	tree_OverAccrualOfDividendForUnvestedShares
Namespace Prefix:	tree_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant