Summary of Significant Accounting Policies	3 Months Ended
Summary of Significant Accounting Policies	Mar. 31, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies Basis of Presentation The accompanying Condensed Consolidated Financial Statements include Belden Inc. and all of its subsidiaries (the Company, us, we, or our). We eliminate all significant affiliate accounts and transactions in consolidation. The accompanying Condensed Consolidated Financial Statements presented as of any date other than December 31, 2023: •Are prepared from the books and records without audit, and •Are prepared in accordance with the instructions for Form 10-Q and do not include all of the information required by accounting principles generally accepted in the United States for complete statements, but •Include all adjustments, consisting only of normal recurring adjustments, necessary for a fair presentation of the financial statements. These Condensed Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Supplementary Data contained in our 2023 Annual Report on Form 10-K. Business Description We are a leading global supplier of network infrastructure and digitization solutions built around two global businesses - Enterprise Solutions and Industrial Automation Solutions. Our mission is to build the foundation for a digital world that makes the digital journey simpler, smarter and secure. Reporting Periods Our fiscal year and fiscal fourth quarter both end on December 31. Our fiscal first quarter ends on the Sunday falling closest to 91 days after December 31, which was March 31, 2024, the 91st day of our fiscal year 2024. Our fiscal second and third quarters each have 91 days. The three months ended April 2, 2023 included 92 days. Fair Value Measurement Accounting guidance for fair value measurements specifies a hierarchy of valuation techniques based upon whether the inputs to those valuation techniques reflect assumptions other market participants would use based upon market data obtained from independent sources or reflect our own assumptions of market participant valuation. The hierarchy is broken down into three levels based on the reliability of the inputs as follows: •Level 1 – Quoted prices in active markets that are unadjusted and accessible at the measurement date for identical, unrestricted assets or liabilities; •Level 2 – Quoted prices for identical assets and liabilities in markets that are not active, quoted prices for similar assets and liabilities in active markets, or financial instruments for which significant inputs are observable, either directly or indirectly; and •Level 3 – Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable. As of and during the three months ended March 31, 2024 and April 2, 2023, we utilized Level 1 inputs to determine the fair value of cash equivalents. We did not have any transfers between Level 1 and Level 2 fair value measurements during the three months ended March 31, 2024 and April 2, 2023. Cash and Cash Equivalents We classify cash on hand and deposits in banks, including commercial paper, money market accounts, and other investments with an original maturity of three months or less, that we hold from time to time, as cash and cash equivalents. We periodically have cash equivalents consisting of short-term money market funds and other investments. As of March 31, 2024, we did not have any such cash equivalents on hand. The primary objective of our investment activities is to preserve our capital for the purpose of funding operations. We do not enter into investments for trading or speculative purposes. Contingent Liabilities We have established liabilities for environmental and legal contingencies that are probable of occurrence and reasonably estimable, the amounts of which are currently not material. We accrue environmental remediation costs based on estimates of known environmental remediation exposures developed in consultation with our environmental consultants and legal counsel. We are, from time to time, subject to routine litigation incidental to our business. Historically, these lawsuits have primarily involved claims for damages arising out of the use of our products, allegations of patent or trademark infringement, and litigation and administrative proceedings involving employment matters and commercial disputes. Based on facts currently available, we believe the disposition of the claims that are pending or asserted will not have a material adverse effect on our financial position, results of operations, or cash flow. As of March 31, 2024, we were party to standby letters of credit, surety bonds, and bank guaranties totaling $7.5 million, $5.4 million, and $4.6 million, respectively. Revenue Recognition We recognize revenue consistent with the principles as outlined in the following five step model: (1) identify the contract with the customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when (or as) each performance obligation is satisfied. See Note 2. Subsequent Events We evaluated subsequent events after the balance sheet date through the financial statement issuance date for appropriate accounting and disclosure. See Note 15. Noncontrolling Interest A Belden subsidiary includes a noncontrolling interest as of and for the periods ended March 31, 2024 and April 2, 2023. The results attributable to the noncontrolling interest holders are not material to our condensed consolidated financial statements, and are presented as net income attributable to noncontrolling interests in the Condensed Consolidated Statements of Operations. Current Year Adoption of Accounting Pronouncements None of the accounting pronouncements that became effective during 2024 had a material impact to our condensed consolidated financial statements or disclosures. Pending Adoption of Recent Accounting Pronouncements The Financial Accounting Standards Board (FASB) amended the guidance in Accounting Standards Codification (ASC) 280, Segment Reporting, to require public companies disclose significant segment expenses and other segment items on an annual and interim basis and to provide in interim periods all disclosures about a reportable segment’s profit or loss and assets that are currently required annually. The guidance is effective for public entities for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted. The guidance is applied retrospectively to all periods presented in the financial statements, unless it is impracticable. We did not early adopt this pronouncement, and we expect the amended guidance to have a minimal impact on our disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) Improvements to Income Tax Disclosures (ASU 2023-09) enhancing the transparency and decision usefulness of income tax disclosures. ASU 2023-09 addresses investor requests for more transparency about income tax information through improvements to income tax disclosures primarily related to the rate reconciliation and income taxes paid information. ASU 2023-09 is effective for annual periods beginning after December 15, 2024, with early adoption permitted. The amendments in ASU 2023-09 are applied on a prospective basis, though retrospective application is permitted. We did not early adopt this pronouncement and are in the process of evaluating its impact on our consolidated financial statements and related disclosures. In March 2024, the SEC issued a final rule that requires registrants to disclose climate-related information in their annual reports and in registration statements. For calendar year companies, the ruling requires certain disclosures in annual reports for the year ending December 31, 2025. We are currently evaluating the impact of the guidance on our consolidated financial statements and disclosures.