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DISCONTINUED OPERATIONS (Details - LTL Loan Loss Obligations) (USD $) | 12 Months Ended | 1 Months Ended | 0 Months Ended | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | May 31, 2013 | Jun. 07, 2012 | Dec. 31, 2014 | Jun. 30, 2012 buyer | Jun. 30, 2014 | Jun. 06, 2012 loan | Dec. 31, 2015
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Restricted cash and cash equivalents | $ 18,716,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue | $ 26,017,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue |  |  |  | $ 18,716,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue |  |  |  |
Increase (Decrease) in Restricted Cash | (7,300,000)us-gaap_IncreaseDecreaseInRestrictedCash | (3,397,000)us-gaap_IncreaseDecreaseInRestrictedCash | 1,085,000 us-gaap_IncreaseDecreaseInRestrictedCash |  |  |  |  |  |  |
Cash and Cash Equivalents, Period Increase (Decrease) | (5,455,000)us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 11,477,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease | 34,649,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease |  |  |  |  |  |  |
Provision adjustments | 14,100,000 us-gaap_LossContingencyAccrualProvision |  |  |  |  |  |  |  |  |
Lending Tree Loans | Discover Bank |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Payment for settlement with buyers of previously purchased loans |  |  |  | 1,300,000 tree_LossContingencySettlementValue / us-gaap_CounterpartyNameAxis = tree_DiscoverBankMember / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember |  |  |  |  |  |
Lending Tree Loans | Discontinued operations |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Guarantee Obligations, Number of Investors to whom Loans Guaranteed | 2 tree_GuaranteeObligationsNumberOfInvestorsToWhomLoansGuaranteed / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |  |  |  |  |  |
Loan loss obligations | Lending Tree Loans |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Loss Contingencies, Number of Loans Sold with Losses |  |  |  |  |  |  |  |  | 234,000 tree_LossContingenciesNumberOfLoansSoldWithLosses / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember |
Loss Contingencies, Original Principal Balance |  |  |  |  |  |  |  |  | 38,900,000,000 tree_LossContingenciesOriginalPrincipalBalance / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember |
Payment for settlement with buyers of previously purchased loans | 14,100,000 tree_LossContingencySettlementValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember |  |  |  |  | 5,400,000 tree_LossContingencySettlementValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember |  |  |  |
Loss Contingencies, Number of Loans Sold to one investor |  |  |  |  | 40.00%tree_LossContingenciesNumberofLoansSoldtooneinvestor / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember |  |  |  |  |
Loan loss obligations | Lending Tree Loans | Discontinued operations |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Number of buyers of previously purchased limited documentation loans |  |  |  |  |  |  | 2 tree_LossContingenciesSettlementNumberOfBuyersOfPreviouslyPurchasedLimitedDocumentationLoans / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |
Range of possible loss, minimum | 6,300,000 us-gaap_LossContingencyRangeOfPossibleLossMinimum / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |  | 6,300,000 us-gaap_LossContingencyRangeOfPossibleLossMinimum / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |
Range of possible loss, maximum | 11,200,000 us-gaap_LossContingencyRangeOfPossibleLossMaximum / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |  | 11,200,000 us-gaap_LossContingencyRangeOfPossibleLossMaximum / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |
Amount of reserve for contingencies | 8,750,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 28,543,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 27,182,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  | 8,750,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |
Loan loss reserve, beginning of period | 28,543,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 27,182,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 31,512,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |  |  |  |
Provision adjustments | (14,144,000)us-gaap_LossContingencyAccrualProvision / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 1,531,000 us-gaap_LossContingencyAccrualProvision / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 6,977,000 us-gaap_LossContingencyAccrualProvision / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |  |  |  |
Change in estimate | 0 tree_LossContingencyAccrualCarryingValueIncreaseDecreaseDueToChangeInEstimate / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 0 tree_LossContingencyAccrualCarryingValueIncreaseDecreaseDueToChangeInEstimate / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 6,493,000 tree_LossContingencyAccrualCarryingValueIncreaseDecreaseDueToChangeInEstimate / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |  |  |  |
Charge-offs to reserves | 5,649,000 tree_LossContingencyAccrualCarryingValueChargeOffs / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 170,000 tree_LossContingencyAccrualCarryingValueChargeOffs / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 4,814,000 tree_LossContingencyAccrualCarryingValueChargeOffs / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |  |  |  |
Loan loss reserve, end of period | 8,750,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 28,543,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember | 27,182,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  | 8,750,000 us-gaap_LossContingencyAccrualAtCarryingValue / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |  |
Loan loss obligations | Lending Tree Loans | Discontinued operations | Buyer One [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Payment for settlement with buyers of previously purchased loans |  |  |  |  |  |  | 500,000 tree_LossContingencySettlementValue / us-gaap_CounterpartyNameAxis = tree_BuyerOneMember / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |
Loan loss obligations | Lending Tree Loans | Discontinued operations | Buyer Two [Member] |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Payment for settlement with buyers of previously purchased loans |  |  |  |  |  |  | 3,300,000 tree_LossContingencySettlementValue / us-gaap_CounterpartyNameAxis = tree_BuyerTwoMember / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_LossContingenciesByNatureOfContingencyAxis = us-gaap_ObligationToRepurchaseReceivablesSoldMember / us-gaap_StatementOperatingActivitiesSegmentAxis = us-gaap_SegmentDiscontinuedOperationsMember |  |  |
Cash in escrow from sale of LendingTree Loans | Lending Tree Loans | Discover Bank |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Restricted cash and cash equivalents | 16,106,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / us-gaap_CounterpartyNameAxis = tree_DiscoverBankMember / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForSaleOfLTLMember | 18,117,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / us-gaap_CounterpartyNameAxis = tree_DiscoverBankMember / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForSaleOfLTLMember |  |  |  | 16,106,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / us-gaap_CounterpartyNameAxis = tree_DiscoverBankMember / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForSaleOfLTLMember |  |  |  |
Increase (Decrease) in Restricted Cash |  |  |  |  |  |  |  | 2,000,000 us-gaap_IncreaseDecreaseInRestrictedCash / us-gaap_CounterpartyNameAxis = tree_DiscoverBankMember / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForSaleOfLTLMember |  |
Cash restricted for loan loss obligations (d) |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Restricted cash and cash equivalents | 0 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForLoanLossObligationsMember | 3,051,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForLoanLossObligationsMember |  |  |  | 0 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForLoanLossObligationsMember |  |  |  |
Increase (Decrease) in Restricted Cash |  |  |  |  |  | 3,100,000 us-gaap_IncreaseDecreaseInRestrictedCash / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForLoanLossObligationsMember |  |  |  |
Cash and Cash Equivalents, Period Increase (Decrease) |  |  |  |  |  | 2,300,000 us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForLoanLossObligationsMember |  |  |  |
Scenario, Forecast [Member] | Cash in escrow from sale of LendingTree Loans | Lending Tree Loans | Discover Bank |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |
Restricted cash and cash equivalents |  |  |  |  |  |  |  |  |  | $ 12,100,000 us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue / us-gaap_CounterpartyNameAxis = tree_DiscoverBankMember / us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis = tree_LendingTreeLoansMember / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tree_EscrowDepositForSaleOfLTLMember / us-gaap_StatementScenarioAxis = us-gaap_ScenarioForecastMember

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- Definition The charge-offs made in the period which reduced loss contingency liabilities. + References No definition available. + Details
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- Definition Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3521-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 230 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450594&loc=d3e33268-110906 + Details
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- Definition The net cash inflow or outflow for the increase (decrease) associated with funds that are not available for withdrawal or use (such as funds held in escrow) and are associated with underlying transactions that are classified as investing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3213-108585 + Details
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