| | | | | | | | | | | | | | | | | | | | | |
<?xml version="1.0" encoding="windows-1252"?> |
<FilingSummary> |
| <Version> 3.22.2 </Version> |
| <ProcessingTime/> |
| <ReportFormat> html </ReportFormat> |
| <ContextCount> 280 </ContextCount> |
| <ElementCount> 342 </ElementCount> |
| <EntityCount> 1 </EntityCount> |
| <FootnotesReported> false </FootnotesReported> |
| <SegmentCount> 61 </SegmentCount> |
| <ScenarioCount> 0 </ScenarioCount> |
| <TuplesReported> false </TuplesReported> |
| <UnitCount> 7 </UnitCount> |
| <MyReports> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R1.htm </HtmlFileName> |
| | | <LongName> 0001001 - Document - Cover Page </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CoverPage </Role> |
| | | <ShortName> Cover Page </ShortName> |
| | | <MenuCategory> Cover </MenuCategory> |
| | | <Position> 1 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R2.htm </HtmlFileName> |
| | | <LongName> 1001002 - Statement - Condensed Consolidated Balance Sheets (Unaudited) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CondensedConsolidatedBalanceSheetsUnaudited </Role> |
| | | <ShortName> Condensed Consolidated Balance Sheets (Unaudited) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 2 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R3.htm </HtmlFileName> |
| | | <LongName> 1002003 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CondensedConsolidatedStatementsofOperationsandComprehensiveIncomeUnaudited </Role> |
| | | <ShortName> Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 3 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R4.htm </HtmlFileName> |
| | | <LongName> 1003004 - Statement - Condensed Consolidated Cash Flow Statements (Unaudited) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CondensedConsolidatedCashFlowStatementsUnaudited </Role> |
| | | <ShortName> Condensed Consolidated Cash Flow Statements (Unaudited) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 4 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R5.htm </HtmlFileName> |
| | | <LongName> 1004005 - Statement - Condensed Consolidated Stockholders' Equity Statements (Unaudited) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CondensedConsolidatedStockholdersEquityStatementsUnaudited </Role> |
| | | <ShortName> Condensed Consolidated Stockholders' Equity Statements (Unaudited) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 5 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R6.htm </HtmlFileName> |
| | | <LongName> 1005006 - Statement - Condensed Consolidated Stockholders' Equity Statements (Unaudited) (Parenthetical) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CondensedConsolidatedStockholdersEquityStatementsUnauditedParenthetical </Role> |
| | | <ShortName> Condensed Consolidated Stockholders' Equity Statements (Unaudited) (Parenthetical) </ShortName> |
| | | <MenuCategory> Statements </MenuCategory> |
| | | <Position> 6 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R7.htm </HtmlFileName> |
| | | <LongName> 2101101 - Disclosure - Summary of Significant Accounting Policies </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/SummaryofSignificantAccountingPolicies </Role> |
| | | <ShortName> Summary of Significant Accounting Policies </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 7 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R8.htm </HtmlFileName> |
| | | <LongName> 2104102 - Disclosure - Revenues </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/Revenues </Role> |
| | | <ShortName> Revenues </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 8 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R9.htm </HtmlFileName> |
| | | <LongName> 2112103 - Disclosure - Acquisitions </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/Acquisitions </Role> |
| | | <ShortName> Acquisitions </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 9 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R10.htm </HtmlFileName> |
| | | <LongName> 2117104 - Disclosure - Disposals </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/Disposals </Role> |
| | | <ShortName> Disposals </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 10 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R11.htm </HtmlFileName> |
| | | <LongName> 2119105 - Disclosure - Discontinued Operations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/DiscontinuedOperations </Role> |
| | | <ShortName> Discontinued Operations </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 11 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R12.htm </HtmlFileName> |
| | | <LongName> 2124106 - Disclosure - Reportable Segments </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ReportableSegments </Role> |
| | | <ShortName> Reportable Segments </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 12 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R13.htm </HtmlFileName> |
| | | <LongName> 2129107 - Disclosure - Income (loss) per Share </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/IncomelossperShare </Role> |
| | | <ShortName> Income (loss) per Share </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 13 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R14.htm </HtmlFileName> |
| | | <LongName> 2133108 - Disclosure - Credit Losses </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CreditLosses </Role> |
| | | <ShortName> Credit Losses </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 14 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R15.htm </HtmlFileName> |
| | | <LongName> 2136109 - Disclosure - Inventories </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/Inventories </Role> |
| | | <ShortName> Inventories </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 15 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R16.htm </HtmlFileName> |
| | | <LongName> 2139110 - Disclosure - Leases </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/Leases </Role> |
| | | <ShortName> Leases </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 16 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R17.htm </HtmlFileName> |
| | | <LongName> 2147111 - Disclosure - Long-Lived Assets </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LongLivedAssets </Role> |
| | | <ShortName> Long-Lived Assets </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 17 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R18.htm </HtmlFileName> |
| | | <LongName> 2149112 - Disclosure - Severance, Restructuring, and Acquisition Integration Activities </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/SeveranceRestructuringandAcquisitionIntegrationActivities </Role> |
| | | <ShortName> Severance, Restructuring, and Acquisition Integration Activities </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 18 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R19.htm </HtmlFileName> |
| | | <LongName> 2153113 - Disclosure - Long-Term Debt and Other Borrowing Arrangements </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangements </Role> |
| | | <ShortName> Long-Term Debt and Other Borrowing Arrangements </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 19 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R20.htm </HtmlFileName> |
| | | <LongName> 2157114 - Disclosure - Net Investment Hedge </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/NetInvestmentHedge </Role> |
| | | <ShortName> Net Investment Hedge </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 20 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R21.htm </HtmlFileName> |
| | | <LongName> 2159115 - Disclosure - Income Taxes </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/IncomeTaxes </Role> |
| | | <ShortName> Income Taxes </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 21 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R22.htm </HtmlFileName> |
| | | <LongName> 2161116 - Disclosure - Pension and Other Postretirement Obligations </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/PensionandOtherPostretirementObligations </Role> |
| | | <ShortName> Pension and Other Postretirement Obligations </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 22 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R23.htm </HtmlFileName> |
| | | <LongName> 2164117 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLoss </Role> |
| | | <ShortName> Comprehensive Income and Accumulated Other Comprehensive Income (Loss) </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 23 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R24.htm </HtmlFileName> |
| | | <LongName> 2169118 - Disclosure - Share Repurchase </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ShareRepurchase </Role> |
| | | <ShortName> Share Repurchase </ShortName> |
| | | <MenuCategory> Notes </MenuCategory> |
| | | <Position> 24 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R25.htm </HtmlFileName> |
| | | <LongName> 2202201 - Disclosure - Summary of Significant Accounting Policies (Policies) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/SummaryofSignificantAccountingPoliciesPolicies </Role> |
| | | <ShortName> Summary of Significant Accounting Policies (Policies) </ShortName> |
| | | <MenuCategory> Policies </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/SummaryofSignificantAccountingPolicies </ParentRole> |
| | | <Position> 25 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R26.htm </HtmlFileName> |
| | | <LongName> 2305301 - Disclosure - Revenues (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/RevenuesTables </Role> |
| | | <ShortName> Revenues (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/Revenues </ParentRole> |
| | | <Position> 26 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R27.htm </HtmlFileName> |
| | | <LongName> 2313302 - Disclosure - Acquisitions (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/AcquisitionsTables </Role> |
| | | <ShortName> Acquisitions (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/Acquisitions </ParentRole> |
| | | <Position> 27 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R28.htm </HtmlFileName> |
| | | <LongName> 2320303 - Disclosure - Discontinued Operations (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/DiscontinuedOperationsTables </Role> |
| | | <ShortName> Discontinued Operations (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/DiscontinuedOperations </ParentRole> |
| | | <Position> 28 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R29.htm </HtmlFileName> |
| | | <LongName> 2325304 - Disclosure - Reportable Segments (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ReportableSegmentsTables </Role> |
| | | <ShortName> Reportable Segments (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/ReportableSegments </ParentRole> |
| | | <Position> 29 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R30.htm </HtmlFileName> |
| | | <LongName> 2330305 - Disclosure - Income (loss) per Share (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/IncomelossperShareTables </Role> |
| | | <ShortName> Income (loss) per Share (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/IncomelossperShare </ParentRole> |
| | | <Position> 30 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R31.htm </HtmlFileName> |
| | | <LongName> 2334306 - Disclosure - Credit Losses (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CreditLossesTables </Role> |
| | | <ShortName> Credit Losses (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/CreditLosses </ParentRole> |
| | | <Position> 31 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R32.htm </HtmlFileName> |
| | | <LongName> 2337307 - Disclosure - Inventories (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/InventoriesTables </Role> |
| | | <ShortName> Inventories (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/Inventories </ParentRole> |
| | | <Position> 32 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R33.htm </HtmlFileName> |
| | | <LongName> 2340308 - Disclosure - Leases (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LeasesTables </Role> |
| | | <ShortName> Leases (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/Leases </ParentRole> |
| | | <Position> 33 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R34.htm </HtmlFileName> |
| | | <LongName> 2350309 - Disclosure - Severance, Restructuring, and Acquisition Integration Activities (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/SeveranceRestructuringandAcquisitionIntegrationActivitiesTables </Role> |
| | | <ShortName> Severance, Restructuring, and Acquisition Integration Activities (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/SeveranceRestructuringandAcquisitionIntegrationActivities </ParentRole> |
| | | <Position> 34 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R35.htm </HtmlFileName> |
| | | <LongName> 2354310 - Disclosure - Long-Term Debt and Other Borrowing Arrangements (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangementsTables </Role> |
| | | <ShortName> Long-Term Debt and Other Borrowing Arrangements (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangements </ParentRole> |
| | | <Position> 35 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R36.htm </HtmlFileName> |
| | | <LongName> 2362311 - Disclosure - Pension and Other Postretirement Obligations (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/PensionandOtherPostretirementObligationsTables </Role> |
| | | <ShortName> Pension and Other Postretirement Obligations (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/PensionandOtherPostretirementObligations </ParentRole> |
| | | <Position> 36 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R37.htm </HtmlFileName> |
| | | <LongName> 2365312 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) (Tables) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables </Role> |
| | | <ShortName> Comprehensive Income and Accumulated Other Comprehensive Income (Loss) (Tables) </ShortName> |
| | | <MenuCategory> Tables </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLoss </ParentRole> |
| | | <Position> 37 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R38.htm </HtmlFileName> |
| | | <LongName> 2403401 - Disclosure - Summary of Significant Accounting Policies - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/SummaryofSignificantAccountingPoliciesAdditionalInformationDetails </Role> |
| | | <ShortName> Summary of Significant Accounting Policies - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 38 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R39.htm </HtmlFileName> |
| | | <LongName> 2406402 - Disclosure - Revenues - Major Product Category (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/RevenuesMajorProductCategoryDetails </Role> |
| | | <ShortName> Revenues - Major Product Category (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 39 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R40.htm </HtmlFileName> |
| | | <LongName> 2407403 - Disclosure - Revenues - Location of Customer (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/RevenuesLocationofCustomerDetails </Role> |
| | | <ShortName> Revenues - Location of Customer (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 40 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R41.htm </HtmlFileName> |
| | | <LongName> 2408404 - Disclosure - Revenues - Estimated and Accrued Variable Consideration (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/RevenuesEstimatedandAccruedVariableConsiderationDetails </Role> |
| | | <ShortName> Revenues - Estimated and Accrued Variable Consideration (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 41 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R42.htm </HtmlFileName> |
| | | <LongName> 2409405 - Disclosure - Revenues - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/RevenuesNarrativeDetails </Role> |
| | | <ShortName> Revenues - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 42 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R43.htm </HtmlFileName> |
| | | <LongName> 2410406 - Disclosure - Revenues - Deferred Revenue (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/RevenuesDeferredRevenueDetails </Role> |
| | | <ShortName> Revenues - Deferred Revenue (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 43 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R44.htm </HtmlFileName> |
| | | <LongName> 2411407 - Disclosure - Revenues - Sales Commissions (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/RevenuesSalesCommissionsDetails </Role> |
| | | <ShortName> Revenues - Sales Commissions (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 44 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R45.htm </HtmlFileName> |
| | | <LongName> 2414408 - Disclosure - Acquisitions - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/AcquisitionsAdditionalInformationDetails </Role> |
| | | <ShortName> Acquisitions - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 45 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R46.htm </HtmlFileName> |
| | | <LongName> 2415409 - Disclosure - Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/AcquisitionsScheduleofRecognizedIdentifiedAssetsAcquiredandLiabilitiesAssumedDetails </Role> |
| | | <ShortName> Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 46 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R47.htm </HtmlFileName> |
| | | <LongName> 2416410 - Disclosure - Acquisitions - Schedule of Acquired Intangible Assets (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/AcquisitionsScheduleofAcquiredIntangibleAssetsDetails </Role> |
| | | <ShortName> Acquisitions - Schedule of Acquired Intangible Assets (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 47 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R48.htm </HtmlFileName> |
| | | <LongName> 2418411 - Disclosure - Disposals (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/DisposalsDetails </Role> |
| | | <ShortName> Disposals (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/Disposals </ParentRole> |
| | | <Position> 48 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R49.htm </HtmlFileName> |
| | | <LongName> 2421412 - Disclosure - Discontinued Operations - Narrative (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/DiscontinuedOperationsNarrativeDetails </Role> |
| | | <ShortName> Discontinued Operations - Narrative (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 49 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R50.htm </HtmlFileName> |
| | | <LongName> 2422413 - Disclosure - Discontinued Operations - Operating Results of the Disposal Group (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/DiscontinuedOperationsOperatingResultsoftheDisposalGroupDetails </Role> |
| | | <ShortName> Discontinued Operations - Operating Results of the Disposal Group (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 50 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R51.htm </HtmlFileName> |
| | | <LongName> 2423414 - Disclosure - Discontinued Operations - Assets and Liabilities of the Disposal Group (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/DiscontinuedOperationsAssetsandLiabilitiesoftheDisposalGroupDetails </Role> |
| | | <ShortName> Discontinued Operations - Assets and Liabilities of the Disposal Group (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 51 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R52.htm </HtmlFileName> |
| | | <LongName> 2426415 - Disclosure - Reportable Segments - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ReportableSegmentsAdditionalInformationDetails </Role> |
| | | <ShortName> Reportable Segments - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 52 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R53.htm </HtmlFileName> |
| | | <LongName> 2427416 - Disclosure - Reportable Segments - Operating Segment Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ReportableSegmentsOperatingSegmentInformationDetails </Role> |
| | | <ShortName> Reportable Segments - Operating Segment Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 53 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R54.htm </HtmlFileName> |
| | | <LongName> 2428417 - Disclosure - Reportable Segments - Reconciliation of Total Reportable Segments' Revenues and EBITDA to Consolidated Revenues and Consolidated Income Before Taxes (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ReportableSegmentsReconciliationofTotalReportableSegmentsRevenuesandEBITDAtoConsolidatedRevenuesandConsolidatedIncomeBeforeTaxesDetails </Role> |
| | | <ShortName> Reportable Segments - Reconciliation of Total Reportable Segments' Revenues and EBITDA to Consolidated Revenues and Consolidated Income Before Taxes (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 54 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R55.htm </HtmlFileName> |
| | | <LongName> 2431418 - Disclosure - Income (loss) per Share - Basis for Income Per Share Computations (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/IncomelossperShareBasisforIncomePerShareComputationsDetails </Role> |
| | | <ShortName> Income (loss) per Share - Basis for Income Per Share Computations (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/IncomelossperShareTables </ParentRole> |
| | | <Position> 55 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R56.htm </HtmlFileName> |
| | | <LongName> 2432419 - Disclosure - Income (loss) per Share - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/IncomelossperShareAdditionalInformationDetails </Role> |
| | | <ShortName> Income (loss) per Share - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/IncomelossperShareTables </ParentRole> |
| | | <Position> 56 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R57.htm </HtmlFileName> |
| | | <LongName> 2435420 - Disclosure - Credit Losses (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/CreditLossesDetails </Role> |
| | | <ShortName> Credit Losses (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/CreditLossesTables </ParentRole> |
| | | <Position> 57 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R58.htm </HtmlFileName> |
| | | <LongName> 2438421 - Disclosure - Inventories - Major Classes of Inventories (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/InventoriesMajorClassesofInventoriesDetails </Role> |
| | | <ShortName> Inventories - Major Classes of Inventories (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 58 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R59.htm </HtmlFileName> |
| | | <LongName> 2441422 - Disclosure - Leases - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LeasesAdditionalInformationDetails </Role> |
| | | <ShortName> Leases - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 59 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R60.htm </HtmlFileName> |
| | | <LongName> 2442423 - Disclosure - Leases - Components of Lease Expense (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LeasesComponentsofLeaseExpenseDetails </Role> |
| | | <ShortName> Leases - Components of Lease Expense (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 60 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R61.htm </HtmlFileName> |
| | | <LongName> 2443424 - Disclosure - Leases - Supplemental Cash Flow Information Related To Leases (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LeasesSupplementalCashFlowInformationRelatedToLeasesDetails </Role> |
| | | <ShortName> Leases - Supplemental Cash Flow Information Related To Leases (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 61 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R62.htm </HtmlFileName> |
| | | <LongName> 2444425 - Disclosure - Leases - Supplemental Balance Sheet Information Related To Leases (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LeasesSupplementalBalanceSheetInformationRelatedToLeasesDetails </Role> |
| | | <ShortName> Leases - Supplemental Balance Sheet Information Related To Leases (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 62 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R63.htm </HtmlFileName> |
| | | <LongName> 2445426 - Disclosure - Leases - Supplemental Other Information Related To Leases (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LeasesSupplementalOtherInformationRelatedToLeasesDetails </Role> |
| | | <ShortName> Leases - Supplemental Other Information Related To Leases (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 63 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R64.htm </HtmlFileName> |
| | | <LongName> 2446427 - Disclosure - Leases - Maturities of Lease Liabilities (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LeasesMaturitiesofLeaseLiabilitiesDetails </Role> |
| | | <ShortName> Leases - Maturities of Lease Liabilities (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 64 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R65.htm </HtmlFileName> |
| | | <LongName> 2448428 - Disclosure - Long-Lived Assets - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LongLivedAssetsAdditionalInformationDetails </Role> |
| | | <ShortName> Long-Lived Assets - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 65 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R66.htm </HtmlFileName> |
| | | <LongName> 2451429 - Disclosure - Severance, Restructuring, and Acquisition Integration Activities - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/SeveranceRestructuringandAcquisitionIntegrationActivitiesAdditionalInformationDetails </Role> |
| | | <ShortName> Severance, Restructuring, and Acquisition Integration Activities - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 66 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R67.htm </HtmlFileName> |
| | | <LongName> 2452430 - Disclosure - Severance, Restructuring, and Acquisition Integration Activities - Costs of Various Programs (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/SeveranceRestructuringandAcquisitionIntegrationActivitiesCostsofVariousProgramsDetails </Role> |
| | | <ShortName> Severance, Restructuring, and Acquisition Integration Activities - Costs of Various Programs (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 67 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R68.htm </HtmlFileName> |
| | | <LongName> 2455431 - Disclosure - Long-Term Debt and Other Borrowing Arrangements - Carrying Values of Long-Term Debt and Other Borrowing Arrangements (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangementsCarryingValuesofLongTermDebtandOtherBorrowingArrangementsDetails </Role> |
| | | <ShortName> Long-Term Debt and Other Borrowing Arrangements - Carrying Values of Long-Term Debt and Other Borrowing Arrangements (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 68 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R69.htm </HtmlFileName> |
| | | <LongName> 2456432 - Disclosure - Long-Term Debt and Other Borrowing Arrangements - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/LongTermDebtandOtherBorrowingArrangementsAdditionalInformationDetails </Role> |
| | | <ShortName> Long-Term Debt and Other Borrowing Arrangements - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 69 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R70.htm </HtmlFileName> |
| | | <LongName> 2458433 - Disclosure - Net Investment Hedge (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/NetInvestmentHedgeDetails </Role> |
| | | <ShortName> Net Investment Hedge (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/NetInvestmentHedge </ParentRole> |
| | | <Position> 70 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R71.htm </HtmlFileName> |
| | | <LongName> 2460434 - Disclosure - Income Taxes - Additional Information (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/IncomeTaxesAdditionalInformationDetails </Role> |
| | | <ShortName> Income Taxes - Additional Information (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 71 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R72.htm </HtmlFileName> |
| | | <LongName> 2463435 - Disclosure - Pension and Other Postretirement Obligations - Components of Net Periodic Benefit Costs (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/PensionandOtherPostretirementObligationsComponentsofNetPeriodicBenefitCostsDetails </Role> |
| | | <ShortName> Pension and Other Postretirement Obligations - Components of Net Periodic Benefit Costs (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <Position> 72 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R73.htm </HtmlFileName> |
| | | <LongName> 2466436 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Total Comprehensive Income (Loss) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTotalComprehensiveIncomeLossDetails </Role> |
| | | <ShortName> Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Total Comprehensive Income (Loss) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables </ParentRole> |
| | | <Position> 73 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R74.htm </HtmlFileName> |
| | | <LongName> 2467437 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss), Net of Tax (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossComponentsofOtherComprehensiveIncomeLossNetofTaxDetails </Role> |
| | | <ShortName> Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss), Net of Tax (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables </ParentRole> |
| | | <Position> 74 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R75.htm </HtmlFileName> |
| | | <LongName> 2468438 - Disclosure - Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Summary of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossSummaryofEffectsofReclassificationsfromAccumulatedOtherComprehensiveIncomeLossDetails </Role> |
| | | <ShortName> Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Summary of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/ComprehensiveIncomeandAccumulatedOtherComprehensiveIncomeLossTables </ParentRole> |
| | | <Position> 75 </Position> |
| | | </Report> |
| | <Report instance="bdc-20220703.htm"> |
| | | <IsDefault> false </IsDefault> |
| | | <HasEmbeddedReports> false </HasEmbeddedReports> |
| | | <HtmlFileName> R76.htm </HtmlFileName> |
| | | <LongName> 2470439 - Disclosure - Share Repurchase (Details) </LongName> |
| | | <ReportType> Sheet </ReportType> |
| | | <Role> http://www.belden.com/role/ShareRepurchaseDetails </Role> |
| | | <ShortName> Share Repurchase (Details) </ShortName> |
| | | <MenuCategory> Details </MenuCategory> |
| | | <ParentRole> http://www.belden.com/role/ShareRepurchase </ParentRole> |
| | | <Position> 76 </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="bdc-20220703.htm"> bdc-20220703.htm </File> |
| | <File> bdc-20220703.xsd </File> |
| | <File> bdc-20220703_cal.xml </File> |
| | <File> bdc-20220703_def.xml </File> |
| | <File> bdc-20220703_lab.xml </File> |
| | <File> bdc-20220703_pre.xml </File> |
| | <File> ex311q22022.htm </File> |
| | <File> ex312q22022.htm </File> |
| | <File> ex321q22022.htm </File> |
| | <File> ex322q22022.htm </File> |
| | <File> stretchachievementstockawa.htm </File> |
| | </InputFiles> |
| <SupplementalFiles/> |
| <BaseTaxonomies> |
| | <BaseTaxonomy items="1097"> http://fasb.org/us-gaap/2022 </BaseTaxonomy> |
| | <BaseTaxonomy items="30"> http://xbrl.sec.gov/dei/2022 </BaseTaxonomy> |
| | </BaseTaxonomies> |
| <HasPresentationLinkbase> true </HasPresentationLinkbase> |
| <HasCalculationLinkbase> true </HasCalculationLinkbase> |
| </FilingSummary> |