| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<FilingSummary> |
| <Version> 3.20.4 </Version> |
| <ProcessingTime/> |
| <ReportFormat> html </ReportFormat> |
| <ContextCount> 289 </ContextCount> |
| <ElementCount> 433 </ElementCount> |
| <EntityCount> 1 </EntityCount> |
| <FootnotesReported> false </FootnotesReported> |
| <SegmentCount> 66 </SegmentCount> |
| <ScenarioCount> 0 </ScenarioCount> |
| <TuplesReported> false </TuplesReported> |
| <UnitCount> 9 </UnitCount> |
| <MyReports> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R1.htm </HtmlFileName> |
| | | <LongName> 100000 - Document - Document and Entity Information </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DocumentDocumentAndEntityInformation </Role> |
| | | <ShortName> Document and Entity Information </ShortName> |
| | | <MenuCategory> Cover </MenuCategory> |
| | | <Position> 1 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R2.htm </HtmlFileName> |
| | | <LongName> 100010 - Statement - Condensed Consolidated Balance Sheets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/StatementCondensedConsolidatedBalanceSheets </Role> |
| | | <ShortName> Condensed Consolidated Balance Sheets </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 2 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R3.htm </HtmlFileName> |
| | | <LongName> 100020 - Statement - Condensed Consolidated Balance Sheets (Parenthetical) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/StatementCondensedConsolidatedBalanceSheetsParenthetical </Role> |
| | | <ShortName> Condensed Consolidated Balance Sheets (Parenthetical) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 3 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R4.htm </HtmlFileName> |
| | | <LongName> 100030 - Statement - Condensed Consolidated Statements of Comprehensive Income </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/StatementCondensedConsolidatedStatementsOfComprehensiveIncome </Role> |
| | | <ShortName> Condensed Consolidated Statements of Comprehensive Income </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 4 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R5.htm </HtmlFileName> |
| | | <LongName> 100040 - Statement - Condensed Consolidated Statements of Changes in Equity </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/StatementCondensedConsolidatedStatementsOfChangesInEquity </Role> |
| | | <ShortName> Condensed Consolidated Statements of Changes in Equity </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 5 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R6.htm </HtmlFileName> |
| | | <LongName> 100050 - Statement - Condensed Consolidated Statements of Cash Flows </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/StatementCondensedConsolidatedStatementsOfCashFlows </Role> |
| | | <ShortName> Condensed Consolidated Statements of Cash Flows </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 6 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R7.htm </HtmlFileName> |
| | | <LongName> 100060 - Disclosure - The Company and Basis of Presentation </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureTheCompanyAndBasisOfPresentation </Role> |
| | | <ShortName> The Company and Basis of Presentation </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 7 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R8.htm </HtmlFileName> |
| | | <LongName> 100070 - Disclosure - Recent Accounting Guidance </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureRecentAccountingGuidance </Role> |
| | | <ShortName> Recent Accounting Guidance </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 8 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R9.htm </HtmlFileName> |
| | | <LongName> 100080 - Disclosure - Summary of Significant Accounting Policies </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies </Role> |
| | | <ShortName> Summary of Significant Accounting Policies </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 9 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R10.htm </HtmlFileName> |
| | | <LongName> 100090 - Disclosure - Earnings Per Share </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureEarningsPerShare </Role> |
| | | <ShortName> Earnings Per Share </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 10 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R11.htm </HtmlFileName> |
| | | <LongName> 100100 - Disclosure - Leases </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureLeases </Role> |
| | | <ShortName> Leases </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 11 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R12.htm </HtmlFileName> |
| | | <LongName> 100110 - Disclosure - Property, Technology, and Equipment </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosurePropertyTechnologyAndEquipment </Role> |
| | | <ShortName> Property, Technology, and Equipment </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 12 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R13.htm </HtmlFileName> |
| | | <LongName> 100120 - Disclosure - Goodwill and Intangible Assets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureGoodwillAndIntangibleAssets </Role> |
| | | <ShortName> Goodwill and Intangible Assets </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 13 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R14.htm </HtmlFileName> |
| | | <LongName> 100130 - Disclosure - Notes Payable </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureNotesPayable </Role> |
| | | <ShortName> Notes Payable </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 14 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R15.htm </HtmlFileName> |
| | | <LongName> 100140 - Disclosure - Derivatives </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureDerivatives </Role> |
| | | <ShortName> Derivatives </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 15 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R16.htm </HtmlFileName> |
| | | <LongName> 100150 - Disclosure - Stockholders' Equity </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureStockholdersEquity </Role> |
| | | <ShortName> Stockholders' Equity </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 16 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R17.htm </HtmlFileName> |
| | | <LongName> 100160 - Disclosure - Variable Interest Entity and Related Party Transactions </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureVariableInterestEntityAndRelatedPartyTransactions </Role> |
| | | <ShortName> Variable Interest Entity and Related Party Transactions </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 17 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R18.htm </HtmlFileName> |
| | | <LongName> 100170 - Disclosure - Fair Value Measurements </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureFairValueMeasurements </Role> |
| | | <ShortName> Fair Value Measurements </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 18 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R19.htm </HtmlFileName> |
| | | <LongName> 100180 - Disclosure - Income Taxes </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureIncomeTaxes </Role> |
| | | <ShortName> Income Taxes </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 19 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R20.htm </HtmlFileName> |
| | | <LongName> 100190 - Disclosure - Share-Based Compensation </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureShareBasedCompensation </Role> |
| | | <ShortName> Share-Based Compensation </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 20 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R21.htm </HtmlFileName> |
| | | <LongName> 100200 - Disclosure - Commitments and Contingencies </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureCommitmentsAndContingencies </Role> |
| | | <ShortName> Commitments and Contingencies </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 21 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R22.htm </HtmlFileName> |
| | | <LongName> 100210 - Disclosure - Operating and Geographic Segment Information </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureOperatingAndGeographicSegmentInformation </Role> |
| | | <ShortName> Operating and Geographic Segment Information </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 22 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R23.htm </HtmlFileName> |
| | | <LongName> 100220 - Disclosure - Summary of Significant Accounting Policies (Policies) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies </Role> |
| | | <ShortName> Summary of Significant Accounting Policies (Policies) </ShortName> |
| | | <MenuCategory> Policies </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureRecentAccountingGuidance </ParentRole> |
| | | <Position> 23 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R24.htm </HtmlFileName> |
| | | <LongName> 100230 - Disclosure - Summary of Significant Accounting Policies (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesTables </Role> |
| | | <ShortName> Summary of Significant Accounting Policies (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPolicies </ParentRole> |
| | | <Position> 24 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R25.htm </HtmlFileName> |
| | | <LongName> 100240 - Disclosure - Earnings Per Share (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureEarningsPerShareTables </Role> |
| | | <ShortName> Earnings Per Share (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureEarningsPerShare </ParentRole> |
| | | <Position> 25 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R26.htm </HtmlFileName> |
| | | <LongName> 100250 - Disclosure - Leases (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureLeasesTables </Role> |
| | | <ShortName> Leases (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureLeases </ParentRole> |
| | | <Position> 26 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R27.htm </HtmlFileName> |
| | | <LongName> 100260 - Disclosure - Property, Technology, and Equipment (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosurePropertyTechnologyAndEquipmentTables </Role> |
| | | <ShortName> Property, Technology, and Equipment (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosurePropertyTechnologyAndEquipment </ParentRole> |
| | | <Position> 27 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R28.htm </HtmlFileName> |
| | | <LongName> 100270 - Disclosure - Goodwill and Intangible Assets (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsTables </Role> |
| | | <ShortName> Goodwill and Intangible Assets (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureGoodwillAndIntangibleAssets </ParentRole> |
| | | <Position> 28 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R29.htm </HtmlFileName> |
| | | <LongName> 100280 - Disclosure - Notes Payable (Tables) </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureNotesPayableTables </Role> |
| | | <ShortName> Notes Payable (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureNotesPayable </ParentRole> |
| | | <Position> 29 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R30.htm </HtmlFileName> |
| | | <LongName> 100290 - Disclosure - Fair Value Measurements (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureFairValueMeasurementsTables </Role> |
| | | <ShortName> Fair Value Measurements (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureFairValueMeasurements </ParentRole> |
| | | <Position> 30 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R31.htm </HtmlFileName> |
| | | <LongName> 100300 - Disclosure - Income Taxes (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureIncomeTaxesTables </Role> |
| | | <ShortName> Income Taxes (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureIncomeTaxes </ParentRole> |
| | | <Position> 31 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R32.htm </HtmlFileName> |
| | | <LongName> 100310 - Disclosure - Share-Based Compensation (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureShareBasedCompensationTables </Role> |
| | | <ShortName> Share-Based Compensation (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureShareBasedCompensation </ParentRole> |
| | | <Position> 32 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R33.htm </HtmlFileName> |
| | | <LongName> 100320 - Disclosure - Commitments and Contingencies (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureCommitmentsAndContingenciesTables </Role> |
| | | <ShortName> Commitments and Contingencies (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureCommitmentsAndContingencies </ParentRole> |
| | | <Position> 33 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R34.htm </HtmlFileName> |
| | | <LongName> 100330 - Disclosure - Operating and Geographic Segment Information (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureOperatingAndGeographicSegmentInformationTables </Role> |
| | | <ShortName> Operating and Geographic Segment Information (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureOperatingAndGeographicSegmentInformation </ParentRole> |
| | | <Position> 34 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R35.htm </HtmlFileName> |
| | | <LongName> 100340 - Disclosure - The Company and Basis of Presentation - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureTheCompanyAndBasisOfPresentationAdditionalInformationDetail </Role> |
| | | <ShortName> The Company and Basis of Presentation - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 35 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R36.htm </HtmlFileName> |
| | | <LongName> 100350 - Disclosure - Recent Accounting Guidance - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureRecentAccountingGuidanceAdditionalInformationDetail </Role> |
| | | <ShortName> Recent Accounting Guidance - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 36 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R37.htm </HtmlFileName> |
| | | <LongName> 100360 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesAdditionalInformationDetail </Role> |
| | | <ShortName> Summary of Significant Accounting Policies - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 37 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R38.htm </HtmlFileName> |
| | | <LongName> 100370 - Disclosure - Summary of Significant Accounting Policies - Disaggregation of Gross Revenues by Major Service Lines and Geographic Markets and Timing of Revenue Recognition (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureSummaryOfSignificantAccountingPoliciesDisaggregationOfGrossRevenuesByMajorServiceLinesAndGeographicMarketsAndTimingOfRevenueRecognitionDetail </Role> |
| | | <ShortName> Summary of Significant Accounting Policies - Disaggregation of Gross Revenues by Major Service Lines and Geographic Markets and Timing of Revenue Recognition (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 38 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R39.htm </HtmlFileName> |
| | | <LongName> 100380 - Disclosure - Earnings Per Share - Computations of the Numerator and Denominator of Basic and Diluted Income Per Share (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureEarningsPerShareComputationsOfNumeratorAndDenominatorOfBasicAndDilutedIncomePerShareDetail </Role> |
| | | <ShortName> Earnings Per Share - Computations of the Numerator and Denominator of Basic and Diluted Income Per Share (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 39 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R40.htm </HtmlFileName> |
| | | <LongName> 100390 - Disclosure - Leases - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureLeasesAdditionalInformationDetail </Role> |
| | | <ShortName> Leases - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 40 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R41.htm </HtmlFileName> |
| | | <LongName> 100400 - Disclosure - Leases - Components of Lease Expense (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureLeasesComponentsOfLeaseExpenseDetail </Role> |
| | | <ShortName> Leases - Components of Lease Expense (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 41 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R42.htm </HtmlFileName> |
| | | <LongName> 100410 - Disclosure - Leases - Supplemental Cash Flow Information Related to Leases (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureLeasesSupplementalCashFlowInformationRelatedToLeasesDetail </Role> |
| | | <ShortName> Leases - Supplemental Cash Flow Information Related to Leases (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 42 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R43.htm </HtmlFileName> |
| | | <LongName> 100420 - Disclosure - Leases - Supplemental Balance Sheet Information Related to Leases (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureLeasesSupplementalBalanceSheetInformationRelatedToLeasesDetail </Role> |
| | | <ShortName> Leases - Supplemental Balance Sheet Information Related to Leases (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 43 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R44.htm </HtmlFileName> |
| | | <LongName> 100430 - Disclosure - Leases - Maturities of Lease Liabilities (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureLeasesMaturitiesOfLeaseLiabilitiesDetail </Role> |
| | | <ShortName> Leases - Maturities of Lease Liabilities (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 44 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R45.htm </HtmlFileName> |
| | | <LongName> 100450 - Disclosure - Property, Technology, and Equipment - Schedule of Property, Technology, and Equipment (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosurePropertyTechnologyAndEquipmentScheduleOfPropertyTechnologyAndEquipmentDetail </Role> |
| | | <ShortName> Property, Technology, and Equipment - Schedule of Property, Technology, and Equipment (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 45 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R46.htm </HtmlFileName> |
| | | <LongName> 100460 - Disclosure - Property, Technology, and Equipment - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosurePropertyTechnologyAndEquipmentAdditionalInformationDetail </Role> |
| | | <ShortName> Property, Technology, and Equipment - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 46 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R47.htm </HtmlFileName> |
| | | <LongName> 100470 - Disclosure - Goodwill and Intangible Assets - Schedule of Changes in Goodwill (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfChangesInGoodwillDetail </Role> |
| | | <ShortName> Goodwill and Intangible Assets - Schedule of Changes in Goodwill (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 47 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R48.htm </HtmlFileName> |
| | | <LongName> 100480 - Disclosure - Goodwill and Intangible Assets - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsAdditionalInformationDetail </Role> |
| | | <ShortName> Goodwill and Intangible Assets - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 48 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R49.htm </HtmlFileName> |
| | | <LongName> 100490 - Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsDetail </Role> |
| | | <ShortName> Goodwill and Intangible Assets - Schedule of Intangible Assets (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 49 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R50.htm </HtmlFileName> |
| | | <LongName> 100500 - Disclosure - Goodwill and Intangible Assets - Schedule of Future Amortization Expense (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureGoodwillAndIntangibleAssetsScheduleOfFutureAmortizationExpenseDetail </Role> |
| | | <ShortName> Goodwill and Intangible Assets - Schedule of Future Amortization Expense (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 50 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R51.htm </HtmlFileName> |
| | | <LongName> 100510 - Disclosure - Notes Payable - Schedule of Notes Payable (Detail) </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureNotesPayableScheduleOfNotesPayableDetail </Role> |
| | | <ShortName> Notes Payable - Schedule of Notes Payable (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 51 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R52.htm </HtmlFileName> |
| | | <LongName> 100530 - Disclosure - Notes Payable - Schedule of Maturities of Notes Payable (Detail) </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureNotesPayableScheduleOfMaturitiesOfNotesPayableDetail </Role> |
| | | <ShortName> Notes Payable - Schedule of Maturities of Notes Payable (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 52 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R53.htm </HtmlFileName> |
| | | <LongName> 100540 - Disclosure - Notes Payable - Additional Information (Detail) </LongName> |
| | | <ReportType> Notes </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureNotesPayableAdditionalInformationDetail </Role> |
| | | <ShortName> Notes Payable - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 53 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R54.htm </HtmlFileName> |
| | | <LongName> 100550 - Disclosure - Derivatives - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureDerivativesAdditionalInformationDetail </Role> |
| | | <ShortName> Derivatives - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 54 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R55.htm </HtmlFileName> |
| | | <LongName> 100560 - Disclosure - Stockholders' Equity - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureStockholdersEquityAdditionalInformationDetail </Role> |
| | | <ShortName> Stockholders' Equity - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 55 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R56.htm </HtmlFileName> |
| | | <LongName> 100570 - Disclosure - Variable Interest Entity and Related Party Transactions - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureVariableInterestEntityAndRelatedPartyTransactionsAdditionalInformationDetail </Role> |
| | | <ShortName> Variable Interest Entity and Related Party Transactions - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 56 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R57.htm </HtmlFileName> |
| | | <LongName> 100580 - Disclosure - Fair Value Measurements - Schedule of Financial Assets (Liabilities) Measured at Fair Value on Recurring Basis (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureFairValueMeasurementsScheduleOfFinancialAssetsLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail </Role> |
| | | <ShortName> Fair Value Measurements - Schedule of Financial Assets (Liabilities) Measured at Fair Value on Recurring Basis (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 57 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R58.htm </HtmlFileName> |
| | | <LongName> 100590 - Disclosure - Fair Value Measurements - Fair Value Assets (Liabilities) Measured on Recurring Basis Unobservable Input Reconciliation (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureFairValueMeasurementsFairValueAssetsLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationDetail </Role> |
| | | <ShortName> Fair Value Measurements - Fair Value Assets (Liabilities) Measured on Recurring Basis Unobservable Input Reconciliation (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 58 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R59.htm </HtmlFileName> |
| | | <LongName> 100600 - Disclosure - Fair Value Measurements - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureFairValueMeasurementsAdditionalInformationDetail </Role> |
| | | <ShortName> Fair Value Measurements - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 59 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R60.htm </HtmlFileName> |
| | | <LongName> 100610 - Disclosure - Fair Value Measurements - Summary of Quantitative Information about Significant Unobservable Inputs Used in Fair Value Measurement of Contingent Consideration (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfQuantitativeInformationAboutSignificantUnobservableInputsUsedInFairValueMeasurementOfContingentConsiderationDetail </Role> |
| | | <ShortName> Fair Value Measurements - Summary of Quantitative Information about Significant Unobservable Inputs Used in Fair Value Measurement of Contingent Consideration (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 60 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R61.htm </HtmlFileName> |
| | | <LongName> 100620 - Disclosure - Fair Value Measurements - Summary of Quantitative Information about Significant Unobservable Inputs Used in Fair Value Measurement of Contingent Consideration (Parenthetical) (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureFairValueMeasurementsSummaryOfQuantitativeInformationAboutSignificantUnobservableInputsUsedInFairValueMeasurementOfContingentConsiderationParentheticalDetail </Role> |
| | | <ShortName> Fair Value Measurements - Summary of Quantitative Information about Significant Unobservable Inputs Used in Fair Value Measurement of Contingent Consideration (Parenthetical) (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 61 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R62.htm </HtmlFileName> |
| | | <LongName> 100630 - Disclosure - Income Taxes - Schedule of Components of Income Tax Expense (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureIncomeTaxesScheduleOfComponentsOfIncomeTaxExpenseDetail </Role> |
| | | <ShortName> Income Taxes - Schedule of Components of Income Tax Expense (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 62 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R63.htm </HtmlFileName> |
| | | <LongName> 100640 - Disclosure - Income Taxes - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureIncomeTaxesAdditionalInformationDetail </Role> |
| | | <ShortName> Income Taxes - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 63 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R64.htm </HtmlFileName> |
| | | <LongName> 100650 - Disclosure - Share-Based Compensation - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureShareBasedCompensationAdditionalInformationDetail </Role> |
| | | <ShortName> Share-Based Compensation - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 64 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R65.htm </HtmlFileName> |
| | | <LongName> 100660 - Disclosure - Share-Based Compensation - Schedule of Share Based Compensation Restricted Stock Activity (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureShareBasedCompensationScheduleOfShareBasedCompensationRestrictedStockActivityDetail </Role> |
| | | <ShortName> Share-Based Compensation - Schedule of Share Based Compensation Restricted Stock Activity (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 65 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R66.htm </HtmlFileName> |
| | | <LongName> 100670 - Disclosure - Share-Based Compensation - Schedule of Share-Based Compensation Stock Options Activity (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureShareBasedCompensationScheduleOfShareBasedCompensationStockOptionsActivityDetail </Role> |
| | | <ShortName> Share-Based Compensation - Schedule of Share-Based Compensation Stock Options Activity (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 66 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R67.htm </HtmlFileName> |
| | | <LongName> 100680 - Disclosure - Commitments and Contingencies - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureCommitmentsAndContingenciesAdditionalInformationDetail </Role> |
| | | <ShortName> Commitments and Contingencies - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 67 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R68.htm </HtmlFileName> |
| | | <LongName> 100690 - Disclosure - Commitments and Contingencies - Schedule of Potential Earn-Out Payments (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureCommitmentsAndContingenciesScheduleOfPotentialEarnOutPaymentsDetail </Role> |
| | | <ShortName> Commitments and Contingencies - Schedule of Potential Earn-Out Payments (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 68 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R69.htm </HtmlFileName> |
| | | <LongName> 100700 - Disclosure - Operating and Geographic Segment Information - Additional Information (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureOperatingAndGeographicSegmentInformationAdditionalInformationDetail </Role> |
| | | <ShortName> Operating and Geographic Segment Information - Additional Information (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 69 </Position> |
| | | </Report> |
| | <Report instance="rlgt-10q_20201231.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R70.htm </HtmlFileName> |
| | | <LongName> 100710 - Disclosure - Operating and Geographic Segment Information - Segment Reporting (Detail) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.radiantdelivers.com/20201231/taxonomy/role/DisclosureOperatingAndGeographicSegmentInformationSegmentReportingDetail </Role> |
| | | <ShortName> Operating and Geographic Segment Information - Segment Reporting (Detail) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 70 </Position> |
| | | </Report> |
| | <Report> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <LongName> All Reports </LongName> |
| | | <ReportType> Book </ReportType> |
| | | <ShortName> All Reports </ShortName> |
| | | </Report> |
| | </MyReports> |
| <InputFiles> |
| | <File doctype="10-Q" original="rlgt-10q_20201231.htm"> rlgt-10q_20201231.htm </File> |
| | <File> rlgt-20201231.xsd </File> |
| | <File> rlgt-20201231_cal.xml </File> |
| | <File> rlgt-20201231_def.xml </File> |
| | <File> rlgt-20201231_lab.xml </File> |
| | <File> rlgt-20201231_pre.xml </File> |
| | <File> rlgt-ex311_7.htm </File> |
| | <File> rlgt-ex312_6.htm </File> |
| | <File> rlgt-ex321_8.htm </File> |
| | </InputFiles> |
| <SupplementalFiles/> |
| <BaseTaxonomies> |
| | <BaseTaxonomy> http://xbrl.sec.gov/country/2020-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://fasb.org/srt/2020-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://xbrl.sec.gov/stpr/2018-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://fasb.org/us-gaap/2020-01-31 </BaseTaxonomy> |
| | <BaseTaxonomy> http://xbrl.sec.gov/dei/2019-01-31 </BaseTaxonomy> |
| | </BaseTaxonomies> |
| <HasPresentationLinkbase> true </HasPresentationLinkbase> |
| <HasCalculationLinkbase> true </HasCalculationLinkbase> |
| </FilingSummary> |