2.4.0.8 Html 54 222 1 false 16 0 false 6 false false R1.htm 100000 - Document - Document and Entity Information Sheet http://www.inteliquent.com/20140930/taxonomy/role/DocumentDocumentAndEntityInformation Document and Entity Information true false R2.htm 100010 - Statement - Condensed Consolidated Balance Sheets Sheet http://www.inteliquent.com/20140930/taxonomy/role/StatementCondensedConsolidatedBalanceSheets Condensed Consolidated Balance Sheets false false R3.htm 100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Sheet http://www.inteliquent.com/20140930/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical Condensed Consolidated Balance Sheets (Parenthetical) false false R4.htm 100030 - Statement - Condensed Consolidated Statements of Income Sheet http://www.inteliquent.com/20140930/taxonomy/role/StatementCondensedConsolidatedStatementsOfIncome Condensed Consolidated Statements of Income false false R5.htm 100040 - Statement - Condensed Consolidated Statements of Comprehensive Income Sheet http://www.inteliquent.com/20140930/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncome Condensed Consolidated Statements of Comprehensive Income false false R6.htm 100050 - Statement - Condensed Consolidated Statements of Cash Flows Sheet http://www.inteliquent.com/20140930/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlows Condensed Consolidated Statements of Cash Flows false false R7.htm 100060 - Disclosure - DESCRIPTION OF THE BUSINESS Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureDESCRIPTIONOFTHEBUSINESS DESCRIPTION OF THE BUSINESS false false R8.htm 100070 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES false false R9.htm 100080 - Disclosure - LEGAL PROCEEDINGS Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureLEGALPROCEEDINGS LEGAL PROCEEDINGS false false R10.htm 100090 - Disclosure - INCOME TAXES Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureINCOMETAXES INCOME TAXES false false R11.htm 100100 - Disclosure - STOCK OPTIONS AND NON-VESTED SHARES Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSTOCKOPTIONSANDNONVESTEDSHARES STOCK OPTIONS AND NON-VESTED SHARES false false R12.htm 100110 - Disclosure - FAIR VALUE MEASUREMENT Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureFAIRVALUEMEASUREMENT FAIR VALUE MEASUREMENT false false R13.htm 100120 - Disclosure - CREDIT FACILITY Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureCREDITFACILITY CREDIT FACILITY false false R14.htm 100130 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSS ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) false false R15.htm 100140 - Disclosure - BUSINESS DISPOSITION Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureBUSINESSDISPOSITION BUSINESS DISPOSITION false false R16.htm 100150 - Disclosure - SEGMENT AND GEOGRAPHIC INFORMATION Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSEGMENTANDGEOGRAPHICINFORMATION SEGMENT AND GEOGRAPHIC INFORMATION false false R17.htm 100160 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) false false R18.htm 100170 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESTables SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) false false R19.htm 100180 - Disclosure - STOCK OPTIONS AND NON-VESTED SHARES (Tables) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSTOCKOPTIONSANDNONVESTEDSHARESTables STOCK OPTIONS AND NON-VESTED SHARES (Tables) false false R20.htm 100190 - Disclosure - FAIR VALUE MEASUREMENT (Tables) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureFAIRVALUEMEASUREMENTTables FAIR VALUE MEASUREMENT (Tables) false false R21.htm 100200 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureACCUMULATEDOTHERCOMPREHENSIVEINCOMELOSSTables ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Tables) false false R22.htm 100210 - Disclosure - BUSINESS DISPOSITION (Tables) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureBUSINESSDISPOSITIONTables BUSINESS DISPOSITION (Tables) false false R23.htm 100220 - Disclosure - Description of the Business - Additional Information (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureDescriptionOfBusinessAdditionalInformationDetail Description of the Business - Additional Information (Detail) false false R24.htm 100230 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail Summary of Significant Accounting Policies - Additional Information (Detail) false false R25.htm 100240 - Disclosure - Earnings Per Share (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureEarningsPerShareDetail Earnings Per Share (Detail) false false R26.htm 100250 - Disclosure - Income Taxes - Additional Information (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetail Income Taxes - Additional Information (Detail) false false R27.htm 100260 - Disclosure - Stock Options and Non-Vested Shares - Additional Information (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureStockOptionsAndNonVestedSharesAdditionalInformationDetail Stock Options and Non-Vested Shares - Additional Information (Detail) false false R28.htm 100270 - Disclosure - Estimated Fair Value of Options (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureEstimatedFairValueOfOptionsDetail Estimated Fair Value of Options (Detail) false false R29.htm 100280 - Disclosure - Stock Option Plan Activity (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureStockOptionPlanActivityDetail Stock Option Plan Activity (Detail) false false R30.htm 100290 - Disclosure - Non-Vested Share Activity (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureNonVestedShareActivityDetail Non-Vested Share Activity (Detail) false false R31.htm 100300 - Disclosure - Fair Value of Company's Financial Assets by Level in Fair Value Hierarchy (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureFairValueOfCompanySFinancialAssetsByLevelInFairValueHierarchyDetail Fair Value of Company's Financial Assets by Level in Fair Value Hierarchy (Detail) false false R32.htm 100310 - Disclosure - Credit Facility - Additional Information (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureCreditFacilityAdditionalInformationDetail Credit Facility - Additional Information (Detail) false false R33.htm 100320 - Disclosure - Accumulated Other Comprehensive Loss - Additional Information (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureAccumulatedOtherComprehensiveLossAdditionalInformationDetail Accumulated Other Comprehensive Loss - Additional Information (Detail) false false R34.htm 100330 - Disclosure - Changes in Accumulated Other Comprehensive Loss (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureChangesInAccumulatedOtherComprehensiveLossDetail Changes in Accumulated Other Comprehensive Loss (Detail) false false R35.htm 100340 - Disclosure - Business Disposition - Additional Information (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureBusinessDispositionAdditionalInformationDetail Business Disposition - Additional Information (Detail) false false R36.htm 100350 - Disclosure - Summarized Activity in Consolidated Statements of Income for Discontinued Operations (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSummarizedActivityInConsolidatedStatementsOfIncomeForDiscontinuedOperationsDetail Summarized Activity in Consolidated Statements of Income for Discontinued Operations (Detail) false false R37.htm 100360 - Disclosure - Segment and Geographic Information - Additional Information (Detail) Sheet http://www.inteliquent.com/20140930/taxonomy/role/DisclosureSegmentAndGeographicInformationAdditionalInformationDetail Segment and Geographic Information - Additional Information (Detail) false false All Reports Book All Reports Element us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal had a mix of decimals attribute values: -5 -3. Element us-gaap_IncreaseDecreaseInOtherCurrentAssets had a mix of decimals attribute values: -5 -3. Element us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod had a mix of decimals attribute values: -5 0. 'Monetary' elements on report '100220 - Disclosure - Description of the Business - Additional Information (Detail)' had a mix of different decimal attribute values. 'Shares' elements on report '100260 - Disclosure - Stock Options and Non-Vested Shares - Additional Information (Detail)' had a mix of different decimal attribute values. 'Shares' elements on report '100290 - Disclosure - Non-Vested Share Activity (Detail)' had a mix of different decimal attribute values. 'Monetary' elements on report '100340 - Disclosure - Business Disposition - Additional Information (Detail)' had a mix of different decimal attribute values. Process Flow-Through: 100010 - Statement - Condensed Consolidated Balance Sheets Process Flow-Through: Removing column 'Sep. 30, 2013' Process Flow-Through: Removing column 'Dec. 31, 2012' Process Flow-Through: 100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) Process Flow-Through: 100030 - Statement - Condensed Consolidated Statements of Income Process Flow-Through: Removing column '0 Months Ended Apr. 30, 2013' Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2013' Process Flow-Through: Removing column '8 Months Ended Dec. 31, 2013' Process Flow-Through: 100040 - Statement - Condensed Consolidated Statements of Comprehensive Income Process Flow-Through: 100050 - Statement - Condensed Consolidated Statements of Cash Flows iqnt-20140930.xml iqnt-20140930.xsd iqnt-20140930_cal.xml iqnt-20140930_def.xml iqnt-20140930_lab.xml iqnt-20140930_pre.xml true true