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SEGMENT INFORMATION (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 segment | Dec. 31, 2013 | Dec. 31, 2012
SEGMENT INFORMATION |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments |  |  |  |  |  |  |  |  | 1 us-gaap_NumberOfReportableSegments |  |
Revenue | $ 43,864 us-gaap_Revenues | $ 41,306 us-gaap_Revenues | $ 42,144 us-gaap_Revenues | $ 40,036 us-gaap_Revenues | $ 36,411 us-gaap_Revenues | $ 37,343 us-gaap_Revenues | $ 37,406 us-gaap_Revenues | $ 28,080 us-gaap_Revenues | $ 167,350 us-gaap_Revenues | $ 139,240 us-gaap_Revenues | $ 77,443 us-gaap_Revenues
Cost of revenue (exclusive of depreciation shown separately below) |  |  |  |  |  |  |  |  | 7,903 us-gaap_CostOfRevenue | 6,542 us-gaap_CostOfRevenue | 4,295 us-gaap_CostOfRevenue
Selling and marketing expense |  |  |  |  |  |  |  |  | 112,704 us-gaap_SellingAndMarketingExpense | 91,121 us-gaap_SellingAndMarketingExpense | 48,934 us-gaap_SellingAndMarketingExpense
General and administrative expense |  |  |  |  |  |  |  |  | 25,883 us-gaap_GeneralAndAdministrativeExpense | 24,658 us-gaap_GeneralAndAdministrativeExpense | 22,231 us-gaap_GeneralAndAdministrativeExpense
Product development |  |  |  |  |  |  |  |  | 7,457 us-gaap_ResearchAndDevelopmentExpense | 5,264 us-gaap_ResearchAndDevelopmentExpense | 3,529 us-gaap_ResearchAndDevelopmentExpense
Depreciation |  |  |  |  |  |  |  |  | 3,245 us-gaap_DepreciationDepletionAndAmortization | 3,501 us-gaap_DepreciationDepletionAndAmortization | 4,105 us-gaap_DepreciationDepletionAndAmortization
Amortization of intangibles |  |  |  |  |  |  |  |  | 136 us-gaap_AmortizationOfIntangibleAssets | 147 us-gaap_AmortizationOfIntangibleAssets | 358 us-gaap_AmortizationOfIntangibleAssets
Restructuring and severance |  |  |  |  |  |  |  |  | 373 us-gaap_RestructuringCharges | 159 us-gaap_RestructuringCharges | (57)us-gaap_RestructuringCharges
Litigation settlements and contingencies |  |  |  |  |  |  |  |  | 10,618 us-gaap_LitigationSettlementExpense | 8,955 us-gaap_LitigationSettlementExpense | (3,101)us-gaap_LitigationSettlementExpense
Total costs and expenses |  |  |  |  |  |  |  |  | 168,319 us-gaap_CostsAndExpenses | 140,347 us-gaap_CostsAndExpenses | 80,294 us-gaap_CostsAndExpenses
Operating income (loss) | 1,712 us-gaap_OperatingIncomeLoss | 554 us-gaap_OperatingIncomeLoss | 2,600 us-gaap_OperatingIncomeLoss | (5,835)us-gaap_OperatingIncomeLoss | 962 us-gaap_OperatingIncomeLoss | 222 us-gaap_OperatingIncomeLoss | (2,045)us-gaap_OperatingIncomeLoss | (246)us-gaap_OperatingIncomeLoss | (969)us-gaap_OperatingIncomeLoss | (1,107)us-gaap_OperatingIncomeLoss | (2,851)us-gaap_OperatingIncomeLoss
Adjustments to reconcile to Adjusted EBITDA: |  |  |  |  |  |  |  |  |  |  |
Amortization of intangibles |  |  |  |  |  |  |  |  | 136 us-gaap_AmortizationOfIntangibleAssets | 147 us-gaap_AmortizationOfIntangibleAssets | 358 us-gaap_AmortizationOfIntangibleAssets
Depreciation |  |  |  |  |  |  |  |  | 3,245 us-gaap_DepreciationDepletionAndAmortization | 3,501 us-gaap_DepreciationDepletionAndAmortization | 4,105 us-gaap_DepreciationDepletionAndAmortization
Restructuring and severance |  |  |  |  |  |  |  |  | 373 us-gaap_RestructuringCharges | 159 us-gaap_RestructuringCharges | (57)us-gaap_RestructuringCharges
Loss on disposal of assets |  |  |  |  |  |  |  |  | 282 us-gaap_GainLossOnDispositionOfAssets | 165 us-gaap_GainLossOnDispositionOfAssets | 738 us-gaap_GainLossOnDispositionOfAssets
Impairment of long-lived assets |  |  |  |  |  |  |  |  | 805 us-gaap_ImpairmentOfLongLivedAssetsHeldForUse | 0 us-gaap_ImpairmentOfLongLivedAssetsHeldForUse | 0 us-gaap_ImpairmentOfLongLivedAssetsHeldForUse
Non-cash compensation |  |  |  |  |  |  |  |  | 7,277 tree_Noncashcompensation | 5,627 tree_Noncashcompensation | 4,587 tree_Noncashcompensation
Special Options Bonus |  |  |  |  |  |  |  |  |  | 920 tree_SpecialOptionsBonus |
Acquisition expense |  |  |  |  |  |  |  |  | 60 tree_TrustContributions | 350 tree_TrustContributions |
Litigation settlements and contingencies |  |  |  |  |  |  |  |  | 10,618 us-gaap_LitigationSettlementExpense | 8,955 us-gaap_LitigationSettlementExpense | (3,101)us-gaap_LitigationSettlementExpense
Adjusted EBITDA |  |  |  |  |  |  |  |  | 21,827 tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization | 18,717 tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization | 3,779 tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization
Adjustments to reconcile to Income/loss before Taxes: |  |  |  |  |  |  |  |  |  |  |
Operating loss | 1,712 us-gaap_OperatingIncomeLoss | 554 us-gaap_OperatingIncomeLoss | 2,600 us-gaap_OperatingIncomeLoss | (5,835)us-gaap_OperatingIncomeLoss | 962 us-gaap_OperatingIncomeLoss | 222 us-gaap_OperatingIncomeLoss | (2,045)us-gaap_OperatingIncomeLoss | (246)us-gaap_OperatingIncomeLoss | (969)us-gaap_OperatingIncomeLoss | (1,107)us-gaap_OperatingIncomeLoss | (2,851)us-gaap_OperatingIncomeLoss
Interest expense |  |  |  |  |  |  |  |  | (2)us-gaap_InterestExpense | (19)us-gaap_InterestExpense | (881)us-gaap_InterestExpense
Loss before income taxes |  |  |  |  |  |  |  |  | (971)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | (1,126)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments | (3,732)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest |  |  |  |  |  |  |  |  | (971)us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |  |
Lending |  |  |  |  |  |  |  |  |  |  |
SEGMENT INFORMATION |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 154,504 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 127,985 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 61,176 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Cost of revenue (exclusive of depreciation shown separately below) |  |  |  |  |  |  |  |  | 7,399 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 5,469 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 3,238 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Selling and marketing expense |  |  |  |  |  |  |  |  | 104,388 us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 83,694 us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 35,250 us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
General and administrative expense |  |  |  |  |  |  |  |  | 4,898 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 3,629 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 3,470 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Product development |  |  |  |  |  |  |  |  | 6,345 us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 4,302 us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 2,277 us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Depreciation |  |  |  |  |  |  |  |  | 1,596 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 1,453 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 1,536 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Amortization of intangibles |  |  |  |  |  |  |  |  | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Restructuring and severance |  |  |  |  |  |  |  |  | 268 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 78 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 20 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Litigation settlements and contingencies |  |  |  |  |  |  |  |  | 0 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Total costs and expenses |  |  |  |  |  |  |  |  | 124,894 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 98,625 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 45,791 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Operating income (loss) |  |  |  |  |  |  |  |  | 29,610 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 29,360 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 15,385 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Adjustments to reconcile to Adjusted EBITDA: |  |  |  |  |  |  |  |  |  |  |
Amortization of intangibles |  |  |  |  |  |  |  |  | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Depreciation |  |  |  |  |  |  |  |  | 1,596 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 1,453 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 1,536 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Restructuring and severance |  |  |  |  |  |  |  |  | 268 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 78 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 20 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Loss on disposal of assets |  |  |  |  |  |  |  |  | 45 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 388 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Impairment of long-lived assets |  |  |  |  |  |  |  |  | 0 us-gaap_ImpairmentOfLongLivedAssetsHeldForUse / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember |  |
Non-cash compensation |  |  |  |  |  |  |  |  | 2,404 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 1,681 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 987 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Special Options Bonus |  |  |  |  |  |  |  |  |  | 0 tree_SpecialOptionsBonus / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember |
Acquisition expense |  |  |  |  |  |  |  |  | 0 tree_TrustContributions / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember |  |
Litigation settlements and contingencies |  |  |  |  |  |  |  |  | 0 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 0 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Adjusted EBITDA |  |  |  |  |  |  |  |  | 33,923 tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 32,572 tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 18,316 tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Adjustments to reconcile to Income/loss before Taxes: |  |  |  |  |  |  |  |  |  |  |
Operating loss |  |  |  |  |  |  |  |  | 29,610 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 29,360 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 15,385 us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Other |  |  |  |  |  |  |  |  |  |  |
SEGMENT INFORMATION |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 12,846 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 10,632 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 14,620 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Cost of revenue (exclusive of depreciation shown separately below) |  |  |  |  |  |  |  |  | 504 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 613 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 536 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Selling and marketing expense |  |  |  |  |  |  |  |  | 8,316 us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 7,449 us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 13,677 us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
General and administrative expense |  |  |  |  |  |  |  |  | 3,979 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 2,245 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 2,888 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Product development |  |  |  |  |  |  |  |  | 1,088 us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 962 us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 1,258 us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Depreciation |  |  |  |  |  |  |  |  | 1,284 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 1,642 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 1,991 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Amortization of intangibles |  |  |  |  |  |  |  |  | 136 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 147 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 358 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Restructuring and severance |  |  |  |  |  |  |  |  | 12 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 46 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 11 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Litigation settlements and contingencies |  |  |  |  |  |  |  |  | 2 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 31 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 0 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Total costs and expenses |  |  |  |  |  |  |  |  | 15,321 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 13,135 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 20,719 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Operating income (loss) |  |  |  |  |  |  |  |  | (2,475)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | (2,503)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | (6,099)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Adjustments to reconcile to Adjusted EBITDA: |  |  |  |  |  |  |  |  |  |  |
Amortization of intangibles |  |  |  |  |  |  |  |  | 136 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 147 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 358 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Depreciation |  |  |  |  |  |  |  |  | 1,284 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 1,642 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 1,991 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Restructuring and severance |  |  |  |  |  |  |  |  | 12 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 46 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 11 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Loss on disposal of assets |  |  |  |  |  |  |  |  | 220 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 0 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 345 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Impairment of long-lived assets |  |  |  |  |  |  |  |  | 805 us-gaap_ImpairmentOfLongLivedAssetsHeldForUse / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember |  |
Non-cash compensation |  |  |  |  |  |  |  |  | 1,043 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 689 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 507 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Special Options Bonus |  |  |  |  |  |  |  |  |  | 0 tree_SpecialOptionsBonus / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember |
Acquisition expense |  |  |  |  |  |  |  |  | 60 tree_TrustContributions / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 0 tree_TrustContributions / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember |
Litigation settlements and contingencies |  |  |  |  |  |  |  |  | 2 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 31 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 0 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Adjusted EBITDA |  |  |  |  |  |  |  |  | 1,087 tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | 52 tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | (2,887)tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Adjustments to reconcile to Income/loss before Taxes: |  |  |  |  |  |  |  |  |  |  |
Operating loss |  |  |  |  |  |  |  |  | (2,475)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | (2,503)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember | (6,099)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = tree_NonMortgageMember
Corporate |  |  |  |  |  |  |  |  |  |  |
SEGMENT INFORMATION |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 0 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 623 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 1,647 us-gaap_Revenues / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Cost of revenue (exclusive of depreciation shown separately below) |  |  |  |  |  |  |  |  | 0 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 460 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 521 us-gaap_CostOfRevenue / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Selling and marketing expense |  |  |  |  |  |  |  |  | 0 us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (22)us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 7 us-gaap_SellingAndMarketingExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
General and administrative expense |  |  |  |  |  |  |  |  | 17,006 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 18,784 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 15,873 us-gaap_GeneralAndAdministrativeExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Product development |  |  |  |  |  |  |  |  | 24 us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 0 us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (6)us-gaap_ResearchAndDevelopmentExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Depreciation |  |  |  |  |  |  |  |  | 365 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 406 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 578 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Amortization of intangibles |  |  |  |  |  |  |  |  | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Restructuring and severance |  |  |  |  |  |  |  |  | 93 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 35 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (88)us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Litigation settlements and contingencies |  |  |  |  |  |  |  |  | 10,616 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 8,924 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (3,101)us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Total costs and expenses |  |  |  |  |  |  |  |  | 28,104 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 28,587 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 13,784 us-gaap_CostsAndExpenses / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Operating income (loss) |  |  |  |  |  |  |  |  | (28,104)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (27,964)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (12,137)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Adjustments to reconcile to Adjusted EBITDA: |  |  |  |  |  |  |  |  |  |  |
Amortization of intangibles |  |  |  |  |  |  |  |  | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 0 us-gaap_AmortizationOfIntangibleAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Depreciation |  |  |  |  |  |  |  |  | 365 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 406 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 578 us-gaap_DepreciationDepletionAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Restructuring and severance |  |  |  |  |  |  |  |  | 93 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 35 us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (88)us-gaap_RestructuringCharges / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Loss on disposal of assets |  |  |  |  |  |  |  |  | 17 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 165 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 5 us-gaap_GainLossOnDispositionOfAssets / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Impairment of long-lived assets |  |  |  |  |  |  |  |  | 0 us-gaap_ImpairmentOfLongLivedAssetsHeldForUse / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |  |
Non-cash compensation |  |  |  |  |  |  |  |  | 3,830 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 3,257 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 3,093 tree_Noncashcompensation / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Special Options Bonus |  |  |  |  |  |  |  |  |  | 920 tree_SpecialOptionsBonus / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |
Acquisition expense |  |  |  |  |  |  |  |  | 0 tree_TrustContributions / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 350 tree_TrustContributions / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember |
Litigation settlements and contingencies |  |  |  |  |  |  |  |  | 10,616 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | 8,924 us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (3,101)us-gaap_LitigationSettlementExpense / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Adjusted EBITDA |  |  |  |  |  |  |  |  | (13,183)tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (13,907)tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (11,650)tree_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Adjustments to reconcile to Income/loss before Taxes: |  |  |  |  |  |  |  |  |  |  |
Operating loss |  |  |  |  |  |  |  |  | (28,104)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (27,964)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember | (12,137)us-gaap_OperatingIncomeLoss / us-gaap_StatementBusinessSegmentsAxis = us-gaap_CorporateMember
Mortgage Products [Member] | Lending |  |  |  |  |  |  |  |  |  |  |
SEGMENT INFORMATION |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 134,137 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_MortgageProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 123,091 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_MortgageProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 59,362 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_MortgageProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Non-mortgage Products [Member] | Lending |  |  |  |  |  |  |  |  |  |  |
SEGMENT INFORMATION |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 20,367 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_NonmortgageProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 4,894 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_NonmortgageProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | 1,814 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_NonmortgageProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember
Lending Products [Member] | Lending |  |  |  |  |  |  |  |  |  |  |
SEGMENT INFORMATION |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | $ 154,504 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_LendingProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | $ 127,985 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_LendingProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember | $ 61,176 us-gaap_Revenues / us-gaap_ProductOrServiceAxis = tree_LendingProductsMember / us-gaap_StatementBusinessSegmentsAxis = tree_MortgageMember

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 985 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 730 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420194&loc=d3e21568-108373 + Details
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