Belden (BDC) 10-Q 2 May 24 2024 Q1 Quarterly report Financial data

Cover

Cover - shares	3 Months Ended
	Mar. 31, 2024	Apr. 26, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2024
Document Transition Report	false
Entity File Number	001-12561
Entity Registrant Name	BELDEN INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-3601505
Entity Address, Address Line One	1 North Brentwood Boulevard,
Entity Address, Address Line Two	15th Floor,
Entity Address, City or Town	St. Louis
Entity Address, State or Province	MO
Entity Address, Postal Zip Code	63105
City Area Code	314
Local Phone Number	854-8000
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity File Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging growth company	false
Entity Shell Company	false
Title of 12(b) Security	Common stock, $0.01 par value
Trading Symbol	BDC
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		40,678,243
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Entity Central Index Key	0000913142
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 506,830	$ 597,044
Receivables, net	356,401	413,806
Inventories, net	374,419	366,987
Other current assets	76,739	79,142
Total current assets	1,314,389	1,456,979
Property, plant and equipment, less accumulated depreciation	453,988	451,069
Operating lease right-of-use assets	124,690	89,686
Goodwill	901,924	907,331
Intangible assets, less accumulated amortization	256,905	269,144
Deferred income taxes	16,575	15,739
Other long-lived assets	50,842	50,243
Total assets	3,119,313	3,240,191
Current liabilities:
Accounts payable	263,627	343,215
Accrued liabilities	250,903	290,289
Total current liabilities	514,530	633,504
Long-term debt	1,180,125	1,204,211
Postretirement benefits	71,839	74,573
Deferred income taxes	50,634	49,472
Long-term operating lease liabilities	108,174	74,941
Other long-term liabilities	38,125	37,188
Stockholders’ equity:
Common stock	503	503
Additional paid-in capital	814,704	818,663
Retained earnings	1,021,061	985,807
Accumulated other comprehensive loss	(32,131)	(41,279)
Treasury stock	(648,292)	(597,437)
Total Belden stockholders’ equity	1,155,845	1,166,257
Noncontrolling interests	41	45
Total stockholders’ equity	1,155,886	1,166,302
Total liabilities and stockholders' equity	$ 3,119,313	$ 3,240,191

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Income Statement [Abstract]
Revenues	$ 535,675	$ 641,789
Cost of sales	(334,079)	(395,684)
Gross profit	201,596	246,105
Selling, general and administrative expenses	(110,768)	(121,574)
Research and development expenses	(26,999)	(29,384)
Amortization of intangibles	(10,809)	(9,610)
Operating income	53,020	85,537
Interest expense, net	(7,582)	(8,201)
Non-operating pension benefit	231	488
Income before taxes	45,669	77,824
Income tax expense	(8,360)	(14,879)
Net income	37,309	62,945
Less: Net loss attributable to noncontrolling interest	(4)	(247)
Net income attributable to Belden stockholders	$ 37,313	$ 63,192
Weighted average number of common shares and equivalents:
Basic (in shares)	40,986	42,827
Diluted (in shares)	41,491	43,669
Basic income per share attributable to Belden stockholders (in dollars per share)	$ 0.91	$ 1.48
Diluted income per share attributable to Belden stockholders (in dollars per share)	$ 0.90	$ 1.45
Comprehensive income attributable to Belden	$ 46,461	$ 45,892
Common stock dividends declared per share (in usd per share)	$ 0.05	$ 0.05

CONDENSED CONSOLIDATED CASH FLO

CONDENSED CONSOLIDATED CASH FLOW STATEMENTS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Cash flows from operating activities:
Net income	$ 37,309	$ 62,945
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	26,987	23,416
Share-based compensation	6,397	6,253
Changes in operating assets and liabilities, net of the effects of currency exchange rate changes, acquired businesses and disposals:
Receivables	54,472	13,928
Inventories	(9,657)	(28,152)
Accounts payable	(76,904)	(56,056)
Accrued liabilities	(45,868)	(54,551)
Income taxes	9,470	2,701
Other assets	(1,353)	(4,111)
Other liabilities	1,868	1,755
Net cash provided by (used for) operating activities	2,721	(31,872)
Cash flows from investing activities:
Capital expenditures	(24,250)	(13,844)
Proceeds from disposal of tangible assets	60	1
Proceeds from disposal of businesses, net of cash sold	0	10,000
Net cash used for investing activities	(24,190)	(3,843)
Cash flows from financing activities:
Payments under share repurchase program	(57,865)	(50,000)
Withholding tax payments for share-based payment awards	(7,921)	(13,292)
Cash dividends paid	(2,075)	(2,146)
Payments under financing lease obligations	(227)	(38)
Proceeds from issuance of common stock	3,152	1,679
Net cash used for financing activities	(64,936)	(63,797)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(3,809)	881
Decrease in cash and cash equivalents	(90,214)	(98,631)
Cash and cash equivalents, beginning of period	597,044	687,676
Cash and cash equivalents, end of period	$ 506,830	$ 589,045

CONDENSED CONSOLIDATED STOCKHOL

CONDENSED CONSOLIDATED STOCKHOLDERS’ EQUITY STATEMENTS - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Non-controlling Interests
Beginning balance (in shares) at Dec. 31, 2022		50,335
Beginning balance at Dec. 31, 2022	$ 1,143,950	$ 503	$ 825,669	$ 751,522	$ (428,812)	$ (5,871)	$ 939
Beginning balance (in shares) at Dec. 31, 2022					(7,502)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	62,945			63,192			(247)
Other comprehensive income (loss), net of tax	(17,298)					(17,300)	2
Common stock issuance	1,679		(420)		$ 2,099
Common stock issuance (in shares)					37
Retirement Savings Plan stock contributions	2,396		638		$ 1,758
Retirement Savings Plan stock contributions (in shares)					28
Exercise of stock options, net of tax withholding forfeitures	(2,596)		(4,547)		$ 1,951
Exercise of stock options, net of tax withholding forfeitures (in shares)					47
Conversion of restricted stock units into common stock, net of tax withholding forfeitures	(10,696)		(17,997)		$ 7,301
Conversion of restricted stock units into common stock, net of tax withholding forfeitures (in shares)					196
Share repurchase program, net of excise tax (in shares)					(594)
Share repurchase program, net of excise tax	(50,266)				$ (50,266)
Share-based compensation	6,253		6,253
Common stock dividends	(2,150)			(2,150)
Ending balance (in shares) at Apr. 02, 2023		50,335
Ending balance at Apr. 02, 2023	1,134,217	$ 503	809,596	812,564	$ (465,969)	(23,171)	694
Ending balance (in shares) at Apr. 02, 2023					(7,788)
Beginning balance (in shares) at Dec. 31, 2023		50,335
Beginning balance at Dec. 31, 2023	1,166,302	$ 503	818,663	985,807	$ (597,437)	(41,279)	45
Beginning balance (in shares) at Dec. 31, 2023					(9,208)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	37,309			37,313			(4)
Other comprehensive income (loss), net of tax	9,148					9,148
Common stock issuance	3,152		477		$ 2,675
Common stock issuance (in shares)					48
Retirement Savings Plan stock contributions	1,828		641		$ 1,187
Retirement Savings Plan stock contributions (in shares)					22
Exercise of stock options, net of tax withholding forfeitures	(384)		(483)		$ 99
Exercise of stock options, net of tax withholding forfeitures (in shares)					8
Conversion of restricted stock units into common stock, net of tax withholding forfeitures	(7,537)		(10,991)		$ 3,454
Conversion of restricted stock units into common stock, net of tax withholding forfeitures (in shares)					138
Share repurchase program, net of excise tax (in shares)					(675)
Share repurchase program, net of excise tax	(58,270)				$ (58,270)
Share-based compensation	6,397		6,397
Common stock dividends	(2,059)			(2,059)
Ending balance (in shares) at Mar. 31, 2024		50,335
Ending balance at Mar. 31, 2024	$ 1,155,886	$ 503	$ 814,704	$ 1,021,061	$ (648,292)	$ (32,131)	$ 41
Ending balance (in shares) at Mar. 31, 2024					(9,667)

CONDENSED CONSOLIDATED STOCKH_2

CONDENSED CONSOLIDATED STOCKHOLDERS’ EQUITY STATEMENTS (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Statement of Stockholders' Equity [Abstract]
Common stock dividends declared per share (in usd per share)	$ 0.05	$ 0.05

Summary of Significant Accounti

Summary of Significant Accounting Policies	3 Months Ended
	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.

Revenues

Revenues	3 Months Ended
	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Revenues	Revenues Revenues are recognized when control of the promised goods or services is transferred to our customers and in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services. Taxes collected from customers and remitted to governmental authorities are not included in our revenues. The following tables present our revenues disaggregated by major product category. Broadband Industrial Automation Solutions Smart Buildings Solutions Total Three Months Ended March 31, 2024 (In thousands) Enterprise Solutions $ 112,100 $ — $ 121,989 $ 234,089 Industrial Automation Solutions — 301,586 — 301,586 Total $ 112,100 $ 301,586 $ 121,989 $ 535,675 Three Months Ended April 2, 2023 Enterprise Solutions $ 131,555 $ — $ 143,788 $ 275,343 Industrial Automation Solutions — 366,446 — 366,446 Total $ 131,555 $ 366,446 $ 143,788 $ 641,789 The following tables present our revenues disaggregated by geography, based on the location of the customer purchasing the product. Americas EMEA APAC Total Revenues Three Months Ended March 31, 2024 (In thousands) Enterprise Solutions $ 166,329 $ 45,688 $ 22,072 $ 234,089 Industrial Automation Solutions 182,890 77,856 40,840 301,586 Total $ 349,219 $ 123,544 $ 62,912 $ 535,675 Three Months Ended April 2, 2023 Enterprise Solutions $ 213,887 $ 37,448 $ 24,008 $ 275,343 Industrial Automation Solutions 215,213 101,921 49,312 366,446 Total $ 429,100 $ 139,369 $ 73,320 $ 641,789 We generate revenues primarily by selling products that support communication, infrastructure, and delivery solutions that make the digital journey simpler, smarter, and secure. We also generate revenues from providing support and professional services. We sell our products to distributors, end-users, installers, and directly to original equipment manufacturers. At times, we enter into arrangements that involve the delivery of multiple performance obligations. For these arrangements, revenue is allocated to each performance obligation based on its relative standalone selling price and recognized when or as each performance obligation is satisfied. Generally, we determine relative standalone selling price using the prices charged separately to customers on a standalone basis. Typically, payments are due after control transfers. Most of our performance obligations related to the sale of products are satisfied at a point in time when control of the product is transferred to the customer, which generally occurs when the product has been shipped or delivered from our facility to our customers, the customer has legal title to the product, and we have a present right to payment for the product. We also consider any customer acceptance clauses in determining when control has transferred to the customer and typically, these clauses are not substantive. The amount of consideration we receive and revenue we recognize varies due to rebates, returns, and price adjustments. We estimate the expected rebates, returns, and price adjustments based on an analysis of historical experience, anticipated sales demand, and trends in product pricing. For example, our estimate of price adjustments is based on our historical price adjustments as a percentage of revenues and the average time period between the original sale and the issuance of the price adjustment. We adjust our estimate of revenue for variable consideration at the earlier of when the most likely amount of consideration we expect to receive changes or when the consideration becomes fixed. We adjust other current assets and cost of sales for the estimated level of returns. Adjustments to revenue for performance obligations satisfied in prior periods were not significant during the three months ended March 31, 2024 and April 2, 2023 . The following table presents estimated and accrued variable consideration: March 31, 2024 December 31, 2023 (in thousands) Accrued rebates included in accrued liabilities $ 36,022 $ 49,255 Accrued returns included in accrued liabilities 14,718 15,570 Price adjustments recognized against gross accounts receivable 22,884 26,005 Depending on the terms of an arrangement, we may defer the recognition of a portion of the consideration received because we have to satisfy a future performance obligation. Consideration allocated to support services under a support and maintenance contract is typically paid in advance and recognized ratably over the term of the service. Consideration allocated to professional services is recognized wh en or as the services are performed depending on the terms of the arrangement. Our contract terms for support, maintenance, and professional services typically require payment within one year or less of when the services will be provided. As of March 31, 2024, total deferred revenue was $30.0 million, and of this amount, $22.4 million is expected to be recognized within the next twelve months, and the remaining $7.5 million is long- term and is expected to be recognized over a period greater than twelve months. The following table presents deferred revenue activity during the three months ended March 31, 2024 and April 2, 2023, respectively: 2024 2023 (In thousands) Beginning balance at January 1 $ 31,062 $ 33,243 New deferrals 6,280 4,359 Revenue recognized (7,392) (8,307) Balance at the end of Q1 $ 29,950 $ 29,295 Service-type warranties represent $10.6 million of the deferred revenue balance at March 31, 2024, and of this amount $5.5 million is expected to be recognized in the next twelve months, and the remaining $5.1 million is long-term and will be recognized over a period greater than twelve months. As of March 31, 2024 and December 31, 2023, we did not have any material contract assets recorded in the Condensed Consolidated Balance Sheets. We expense sales commissions as incurred when the duration of the related revenue arrangement is one year or less. We capitalize sales commissions when the original duration of the related revenue arrangement is longer than one year, and we amortize it over the related revenue arrangement period. We did not have any capitalized sales commissions as of March 31, 2024 and December 31, 2023. The following table presents sales commissions that are recorded within selling, general and administrative expenses: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Sales commissions $ 5,323 $ 5,773

Reportable Segments

Reportable Segments	3 Months Ended
	Mar. 31, 2024
Segment Reporting [Abstract]
Reportable Segments	Reportable Segments We are organized around two global businesses: Enterprise Solutions and Industrial Automation Solutions. Each of the global businesses represents a reportable segment. The key measures of segment profit or loss are Segment Revenues and Segment EBITDA. Segment Revenues represent non-affiliate revenues. Segment EBITDA excludes certain items, including depreciation expense; amortization of intangibles; asset impairment; severance, restructuring, and acquisition integration costs; adjustments related to acquisitions and divestitures; and other costs. We allocate corporate expenses to the segments for purposes of measuring Segment EBITDA. Corporate expenses are allocated on the basis of each segment’s relative EBITDA prior to the allocation. Our measure of segment assets does not include cash, goodwill, intangible assets, deferred tax assets, or corporate assets. All goodwill is allocated to reporting units of our segments for purposes of impairment testing. Inter-company revenues between our segments is not material. Enterprise Solutions Industrial Automation Solutions Total Segments (In thousands) As of and for the three months ended March 31, 2024 Segment Revenues $ 234,089 $ 301,586 $ 535,675 Segment EBITDA 25,788 58,745 84,533 Depreciation expense 6,305 7,160 13,465 Amortization of intangibles 5,719 5,090 10,809 Amortization of software development intangible assets — 2,713 2,713 Severance, restructuring, and acquisition integration costs 1,590 2,622 4,212 Adjustments related to acquisitions and divestitures — 298 298 Segment assets 610,106 754,732 1,364,838 As of and for the three months ended April 2, 2023 Segment Revenues $ 275,343 $ 366,446 $ 641,789 Segment EBITDA 37,205 73,787 110,992 Depreciation expense 5,954 6,400 12,354 Amortization of intangibles 4,495 5,115 9,610 Amortization of software development intangible assets — 1,452 1,452 Severance, restructuring, and acquisition integration costs 25 1,687 1,712 Adjustments related to acquisitions and divestitures — 298 298 Segment assets 597,426 660,300 1,257,726 The following table is a reconciliation of the total of the reportable segments’ Revenues and EBITDA to consolidated revenues and consolidated income before taxes, respectively. Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Total Segment and Consolidated Revenues $ 535,675 $ 641,789 Total Segment EBITDA $ 84,533 $ 110,992 Depreciation expense (13,465) (12,354) Amortization of intangibles (10,809) (9,610) Severance, restructuring, and acquisition integration costs (1) (4,212) (1,712) Amortization of software development intangible assets (2,713) (1,452) Adjustments related to acquisitions and divestitures (2) (298) (298) Eliminations (16) (29) Consolidated operating income 53,020 85,537 Interest expense, net (7,582) (8,201) Total non-operating pension benefit 231 488 Consolidated income before taxes $ 45,669 $ 77,824 (1) Includes restructuring and integration costs associated with acquisitions as well as costs associated with certain manufacturing footprint actions.

Income per Share

Income per Share	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Income per Share	Income per Share The following table presents the basis for the income per share computations: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Numerator: Net income $ 37,309 $ 62,945 Less: Net loss attributable to noncontrolling interest (4) (247) Net income attributable to Belden stockholders $ 37,313 $ 63,192 Denominator: Weighted average shares outstanding, basic 40,986 42,827 Effect of dilutive common stock equivalents 505 842 Weighted average shares outstanding, diluted 41,491 43,669 For the three months ended March 31, 2024 and April 2, 2023, diluted weighted average shares outstanding do not include outstanding equity awards of 0.1 million and 0.2 million, respectively, because they are anti-dilutive. In addition, for the three months ended March 31, 2024 and April 2, 2023, diluted weighted average shares outstanding do not include outstanding equity awards of 0.3 million and 0.1 million, respectively, because the related performance conditions have not been satisfied. For purposes of calculating basic earnings per share, unvested restricted stock units are not included in the calculation of basic weighted average shares outstanding until all necessary conditions have been satisfied and issuance of the shares underlying the restricted stock units is no longer contingent. Necessary conditions are not satisfied until the vesting date, at which time holders of our restricted stock units receive shares of our common stock. For purposes of calculating diluted earnings per share, unvested restricted stock units are included to the extent that they are dilutive. In determining whether unvested restricted stock units are dilutive, each issuance of restricted stock units is considered separately. Once a restricted stock unit has vested, it is included in the calculation of both basic and diluted weighted average shares outstanding.

Credit Losses

Credit Losses	3 Months Ended
	Mar. 31, 2024
Credit Loss [Abstract]
Credit Losses	Credit Losses We are exposed to credit losses primarily through sales of products and services. Our expected loss allowance methodology for accounts receivable is developed using historical collection experience, current and future economic and market conditions and a review of the current status of customers' trade accounts receivables. Due to the short-term nature of such receivables, the estimated amount of accounts receivable that may not be collected is based on aging of the accounts receivable balances and the financial condition of customers. Additionally, specific allowance amounts are established to record the appropriate provision for customers that have a higher probability of default. Our monitoring activities include timely account reconciliation, dispute resolution, payment confirmation, consideration of customers' financial condition and macroeconomic conditions. Balances are written off when determined to be uncollectible. Provisions and recoveries are included in selling, general and administrative expenses. The following table presents the activity in the trade receivables allowance for doubtful accounts for the three months ended March 31, 2024 and April 2, 2023, respectively: 2024 2023 (In thousands) Beginning balance at January 1 $ 23,114 $ 7,954 Current period provision 459 4,004 Recoveries collected (6) — Write-offs (96) (3) Fx impact (51) (25) Q1 ending balance $ 23,420 $ 11,930

Inventories

Inventories	3 Months Ended
	Mar. 31, 2024
Inventory Disclosure [Abstract]
Inventories	Inventories The following table presents the major classes of inventories as of March 31, 2024 and December 31, 2023 , respectively: March 31, 2024 December 31, 2023 (In thousands) Raw materials $ 175,110 $ 185,233 Work-in-process 43,674 41,197 Finished goods 223,663 208,425 Gross inventories 442,447 434,855 Excess and obsolete reserves (68,028) (67,868) Net inventories $ 374,419 $ 366,987

Leases

Leases	3 Months Ended
	Mar. 31, 2024
Leases [Abstract]
Leases	Leases We have operating and finance leases for properties, including manufacturing facilities, warehouses, and office space; as well as vehicles and equipment. We make certain judgments in determining whether a contract contains a lease in accordance with ASU 2016-02. Our leases have remaining lease terms within 1 to 20 years; some of which include extension and termination options. We do not assume renewals in our determination of the lease term unless the renewals are deemed to be reasonably certain as of the commencement date of the lease. We have a few short-term operating leases with terms less than twelve months - these leases are not recorded on our balance sheet and the overall rent expense is not material. We also have certain lease contracts that contain both lease and non-lease components. We have elected the practical expedient to account for these components together as a single, combined lease component. T he rate implicit in most of our leases is not readily determinable. As a result, we utilize the incremental borrowing rate to determine the present value of the lease payments, which is unique to each leased asset, and is based upon the term of the lease, commencement date of the lease, local currency of the leased asset, and the credit rating of the legal entity leasing the asset. Our lease agreements do not contain material residual value guarantees. Our variable lease expense was approximately $0.9 million and $0.8 million for the t hree months ended March 31, 2024 and April 2, 2023, respectively. The components of lease expense were as follows: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Operating lease cost $ 6,875 $ 5,517 Finance lease cost Amortization of right-of-use asset $ 194 $ 201 Interest on lease liabilities 109 80 Total finance lease cost $ 303 $ 281 Supplemental cash flow information related to leases was as follows: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6,727 $ 4,665 Operating cash flows from finance leases were not material during the three months ended March 31, 2024 and April 2, 2023 . Supplemental balance sheet information related to leases was as follows: March 31, 2024 December 31, 2023 (In thousands) Operating leases: Total operating lease right-of-use assets $ 124,690 $ 89,686 Accrued liabilities $ 18,753 $ 18,226 Long-term operating lease liabilities 108,174 74,941 Total operating lease liabilities $ 126,927 $ 93,167 Finance leases: Other long-lived assets, at cost $ 8,247 $ 6,560 Accumulated depreciation (1,555) (1,347) Other long-lived assets, net $ 6,692 $ 5,213 Accrued liabilities $ 1,022 $ 719 Other long-term liabilities 7,181 6,084 Total finance lease liabilities $ 8,203 $ 6,803 The increases in operating lease right-of-use assets and lease liabilities are primarily due to the initial recognition of a new lease during the three months ended March 31, 2024 that had balances of $34.2 million and $33.2 million, respectively. March 31, 2024 December 31, 2023 Weighted Average Remaining Lease Term Operating leases 10 years 6 years Finance leases 8 years 9 years Weighted Average Discount Rate Operating leases 5.7 % 5.0 % Finance leases 4.6 % 4.3 % In addition, we guaranteed the lease payments for certain Grass Valley property leases with expiration dates extending up to 2035. These lease guarantees were retained by Belden and not transferred to the buyer of Grass Valley. As of March 31, 2024, the fixed, remaining base rent payments were approximately $21 million. As of March 31, 2024 and April 2, 2023, we had a liability for expected, future payments of $11.0 million and $8.8 million, respectively. The liability is based on certain assumptions, such as receiving a level of sublease income, that we continually reassess on an ongoing basis. We will update the estimated liability balance for changes in assumptions as needed.
Leases	Leases We have operating and finance leases for properties, including manufacturing facilities, warehouses, and office space; as well as vehicles and equipment. We make certain judgments in determining whether a contract contains a lease in accordance with ASU 2016-02. Our leases have remaining lease terms within 1 to 20 years; some of which include extension and termination options. We do not assume renewals in our determination of the lease term unless the renewals are deemed to be reasonably certain as of the commencement date of the lease. We have a few short-term operating leases with terms less than twelve months - these leases are not recorded on our balance sheet and the overall rent expense is not material. We also have certain lease contracts that contain both lease and non-lease components. We have elected the practical expedient to account for these components together as a single, combined lease component. T he rate implicit in most of our leases is not readily determinable. As a result, we utilize the incremental borrowing rate to determine the present value of the lease payments, which is unique to each leased asset, and is based upon the term of the lease, commencement date of the lease, local currency of the leased asset, and the credit rating of the legal entity leasing the asset. Our lease agreements do not contain material residual value guarantees. Our variable lease expense was approximately $0.9 million and $0.8 million for the t hree months ended March 31, 2024 and April 2, 2023, respectively. The components of lease expense were as follows: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Operating lease cost $ 6,875 $ 5,517 Finance lease cost Amortization of right-of-use asset $ 194 $ 201 Interest on lease liabilities 109 80 Total finance lease cost $ 303 $ 281 Supplemental cash flow information related to leases was as follows: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6,727 $ 4,665 Operating cash flows from finance leases were not material during the three months ended March 31, 2024 and April 2, 2023 . Supplemental balance sheet information related to leases was as follows: March 31, 2024 December 31, 2023 (In thousands) Operating leases: Total operating lease right-of-use assets $ 124,690 $ 89,686 Accrued liabilities $ 18,753 $ 18,226 Long-term operating lease liabilities 108,174 74,941 Total operating lease liabilities $ 126,927 $ 93,167 Finance leases: Other long-lived assets, at cost $ 8,247 $ 6,560 Accumulated depreciation (1,555) (1,347) Other long-lived assets, net $ 6,692 $ 5,213 Accrued liabilities $ 1,022 $ 719 Other long-term liabilities 7,181 6,084 Total finance lease liabilities $ 8,203 $ 6,803 The increases in operating lease right-of-use assets and lease liabilities are primarily due to the initial recognition of a new lease during the three months ended March 31, 2024 that had balances of $34.2 million and $33.2 million, respectively. March 31, 2024 December 31, 2023 Weighted Average Remaining Lease Term Operating leases 10 years 6 years Finance leases 8 years 9 years Weighted Average Discount Rate Operating leases 5.7 % 5.0 % Finance leases 4.6 % 4.3 % In addition, we guaranteed the lease payments for certain Grass Valley property leases with expiration dates extending up to 2035. These lease guarantees were retained by Belden and not transferred to the buyer of Grass Valley. As of March 31, 2024, the fixed, remaining base rent payments were approximately $21 million. As of March 31, 2024 and April 2, 2023, we had a liability for expected, future payments of $11.0 million and $8.8 million, respectively. The liability is based on certain assumptions, such as receiving a level of sublease income, that we continually reassess on an ongoing basis. We will update the estimated liability balance for changes in assumptions as needed.

Long-Lived Assets

Long-Lived Assets	3 Months Ended
	Mar. 31, 2024
Property, Plant and Equipment [Abstract]
Long-Lived Assets	Long-Lived Assets Depreciation and Amortization Expense We recognized depreciation expense of $13.5 million and $12.4 million in the three months ended March 31, 2024 and April 2, 2023, respectively. We recognized amortization expense of $13.5 million and $11.1 million in the three months ended March 31, 2024 and April 2, 2023, respectively.

Long-Term Debt and Other Borrow

Long-Term Debt and Other Borrowing Arrangements	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Long-Term Debt and Other Borrowing Arrangements	Long-Term Debt and Other Borrowing Arrangements The carrying values of our long-term debt were as follows: March 31, 2024 December 31, 2023 (In thousands) Revolving credit agreement due 2026 $ — $ — Senior subordinated notes: 3.375% Senior subordinated notes due 2027 486,945 497,025 3.875% Senior subordinated notes due 2028 378,735 386,575 3.375% Senior subordinated notes due 2031 324,630 331,350 Total senior subordinated notes 1,190,310 1,214,950 Less unamortized debt issuance costs (10,185) (10,739) Long-term debt $ 1,180,125 $ 1,204,211 Revolving Credit Agreement due 2026 We have a $300.0 million multi-currency asset-based revolving credit facility (the Revolver). The maturity date of the Revolver is June 2, 2026. The borrowing base under the Revolver includes eligible accounts receivable; inventory; and property, plant and equipment of certain of our subsidiaries in the United States, Canada, Germany, the United Kingdom and the Netherlands. Interest on outstanding borrowings is variable, based upon SOFR or other similar indices in foreign jurisdictions, plus a spread that ranges from 1.25%-1.75%, depending upon our leverage position. Outstanding borrowings in the U.S. and Canada may also, at our election, be priced on a base rate plus a spread that ranges from 0.25% — 0.75%, depending on our leverage position. We pay a commitment fee on the total commitments of 0.25%. In the event that we borrow more than 90% of our combined borrowing base or our borrowing base availability is less than $20.0 million, we are subject to a fixed charge coverage ratio covenant. As of March 31, 2024, we had no borrowings outstanding on the Revolver, and our available borrowing capacity was $292.6 million. Senior Subordinated Notes We have outstanding €450.0 million aggregate principal amount of 3.375% senior subordinated notes due 2027 (the 2027 Notes). The carrying value of the 2027 Notes as of March 31, 2024 is $486.9 million. The 2027 Notes are guaranteed on a senior subordinated basis by our current and future domestic subsidiaries. The 2027 Notes rank equal in right of payment with our senior subordinated notes due 2031 and 2028 and with any future subordinated debt, and they are subordinated to all of our senior debt and the senior debt of our subsidiary guarantors, including our Revolver. Interest is payable semiannually on January 15 and July 15 of each year. We have outstanding €350.0 million aggregate principal amount of 3.875% senior subordinated notes due 2028 (the 2028 Notes). The carrying value of the 2028 Notes as of March 31, 2024 is $378.7 million. The 2028 Notes are guaranteed on a senior subordinated basis by our current and future domestic subsidiaries. The 2028 Notes rank equal in right of payment with our senior subordinated notes due 2031 and 2027 and with any future subordinated debt, and they are subordinated to all of our senior debt and the senior debt of our subsidiary guarantors, including our Revolver. Interest is payable semiannually on March 15 and September 15 of each year. We have outstanding €300.0 million aggregate principal amount of 3.375% senior subordinated notes due 2031 (the 2031 Notes). The carrying value of the 2031 Notes as of March 31, 2024 is $324.6 million. The 2031 Notes are guaranteed on a senior subordinated basis by our current and future domestic subsidiaries. The 2031 Notes rank equal in right of payment with our senior subordinated notes due 2028 and 2027 and with any future subordinated debt, and they are subordinated to all of our senior debt and the senior debt of our subsidiary guarantor s, including our Revolver. Interest is payable semiannually on January 15 and July 15 of each year. Fair Value of Long-Term Debt

Net Investment Hedge

Net Investment Hedge	3 Months Ended
	Mar. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Net Investment Hedge	Net Investment Hedge All of our euro denominated notes were issued by Belden Inc., a USD functional currency entity. As of March 31, 2024, €567.8 million o f our outstanding foreign denominated debt is designated as a net investment hedge on the foreign currency risk of our net investment

Income Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2024
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three months ended March 31, 2024, we recognized income tax expense of $8.4 million representing an effective tax rate of 18.3%. For the three months ended April 2, 2023 , we recognized income tax expense of $14.9 million representing an effective tax rates of 19.1%. The effective tax rates were primarily impacted by the effect of our foreign operations, including statutory tax rates differences and foreign tax credits.

Pension and Other Postretiremen

Pension and Other Postretirement Obligations	3 Months Ended
	Mar. 31, 2024
Retirement Benefits [Abstract]
Pension and Other Postretirement Obligations	Pension and Other Postretirement Obligations The following table provides the components of net periodic benefit costs for our pension and other postretirement benefit plans: Pension Obligations Other Postretirement Obligations March 31, 2024 April 2, 2023 March 31, 2024 April 2, 2023 (In thousands) Three Months Ended Service cost $ 748 $ 690 $ 10 $ 3 Interest cost 3,676 3,744 238 251 Expected return on plan assets (4,047) (4,109) — — Amortization of prior service cost 45 43 — — Actuarial gains (26) (226) (117) (191) Net periodic benefit cost $ 396 $ 142 $ 131 $ 63

Comprehensive Income and Accumu

Comprehensive Income and Accumulated Other Comprehensive Income (Loss)	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Comprehensive Income and Accumulated Other Comprehensive Income (Loss)	Comprehensive Income and Accumulated Other Comprehensive Income (Loss) The following table summarizes total comprehensive income: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Net income $ 37,309 $ 62,945 Foreign currency translation adjustments, net of tax 9,222 (17,018) Adjustments to pension and postretirement liability, net of tax (74) (280) Total comprehensive income 46,457 45,647 Less: Comprehensive loss attributable to noncontrolling interests (4) (245) Comprehensive income attributable to Belden $ 46,461 $ 45,892 The tax impacts of the foreign currency translation adjustments and pension liability adjustments in the table above are not material. The accumulated balances related to each component of other comprehensive loss, net of tax, are as follows: Foreign Pension and Accumulated Other (In thousands) Balance at December 31, 2023 $ (26,514) $ (14,765) $ (41,279) Other comprehensive income attributable to Belden before reclassifications 9,222 — 9,222 Amounts reclassified from accumulated other comprehensive loss — (74) (74) Net current period other comprehensive income (loss) attributable to Belden 9,222 (74) 9,148 Balance at March 31, 2024 $ (17,292) $ (14,839) $ (32,131) The following table summarizes the effects of reclassifications from accumulated other comprehensive loss for the three months ended March 31, 2024: Amounts Affected Line Item in the Consolidated Statements of Operations and Comprehensive Income (In thousands) Amortization of pension and other postretirement benefit plan items: Actuarial gains $ (143) (1) Prior service cost 45 (1) Total before tax (98) Tax expense 24 Total net of tax $ (74)

Share Repurchase

Share Repurchase	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Share Repurchase	Share Repurchase In 2018, our Board of Directors authorized a share repurchase program, which allows us to purchase up to $300.0 million of our common stock through open market repurchases, negotiated transactions, or other means, in accordance with applicable securities laws and other restrictions. In April 2023, our Board of Directors authorized an additional $300.0 million under the share repurchase program. This program is funded with cash on hand and cash flows from operating activities.

Subsequent Event

Subsequent Event	3 Months Ended
	Mar. 31, 2024
Subsequent Events [Abstract]
Subsequent Event	Subsequent Events On April 30, 2024, we entered into a definitive agreement to acquire Precision Optical Technologies, Inc. (“Precision Optical Technologies”) for approximately $290 million in cash. Precision Optical Technologies, based in New York, is a leading supplier of value-added optical transceivers with proprietary software, firmware configurations, and related components. The acquisition of Precision Optical Technologies is expected to close by the end of the second quarter of 2024 and

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Pay vs Performance Disclosure
Net Income (Loss)	$ 37,313	$ 63,192

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Mar. 31, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2024
Accounting Policies [Abstract]
Basis of Presentation	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	Business Description
Reporting Periods	Reporting Periods
Fair Value Measurement	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 •
Cash and Cash Equivalents	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.
Contingent Liabilities	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.
Revenue Recognition	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	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	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
Current Year Adoption of Accounting Pronouncements and Pending Adoption of Recent Accounting Pronouncements	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.

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2024
Revenue from Contract with Customer [Abstract]
Schedule of Disaggregation of Revenue	The following tables present our revenues disaggregated by major product category. Broadband Industrial Automation Solutions Smart Buildings Solutions Total Three Months Ended March 31, 2024 (In thousands) Enterprise Solutions $ 112,100 $ — $ 121,989 $ 234,089 Industrial Automation Solutions — 301,586 — 301,586 Total $ 112,100 $ 301,586 $ 121,989 $ 535,675 Three Months Ended April 2, 2023 Enterprise Solutions $ 131,555 $ — $ 143,788 $ 275,343 Industrial Automation Solutions — 366,446 — 366,446 Total $ 131,555 $ 366,446 $ 143,788 $ 641,789 The following tables present our revenues disaggregated by geography, based on the location of the customer purchasing the product. Americas EMEA APAC Total Revenues Three Months Ended March 31, 2024 (In thousands) Enterprise Solutions $ 166,329 $ 45,688 $ 22,072 $ 234,089 Industrial Automation Solutions 182,890 77,856 40,840 301,586 Total $ 349,219 $ 123,544 $ 62,912 $ 535,675 Three Months Ended April 2, 2023 Enterprise Solutions $ 213,887 $ 37,448 $ 24,008 $ 275,343 Industrial Automation Solutions 215,213 101,921 49,312 366,446 Total $ 429,100 $ 139,369 $ 73,320 $ 641,789
Schedule of Contract with Customer, Asset and Liability	The following table presents estimated and accrued variable consideration: March 31, 2024 December 31, 2023 (in thousands) Accrued rebates included in accrued liabilities $ 36,022 $ 49,255 Accrued returns included in accrued liabilities 14,718 15,570 Price adjustments recognized against gross accounts receivable 22,884 26,005 March 31, 2024 and April 2, 2023, respectively: 2024 2023 (In thousands) Beginning balance at January 1 $ 31,062 $ 33,243 New deferrals 6,280 4,359 Revenue recognized (7,392) (8,307) Balance at the end of Q1 $ 29,950 $ 29,295
Schedule of Sales Commissions	The following table presents sales commissions that are recorded within selling, general and administrative expenses: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Sales commissions $ 5,323 $ 5,773

Reportable Segments (Tables)

Reportable Segments (Tables)	3 Months Ended
	Mar. 31, 2024
Segment Reporting [Abstract]
Schedule of Operating Segment Information	Enterprise Solutions Industrial Automation Solutions Total Segments (In thousands) As of and for the three months ended March 31, 2024 Segment Revenues $ 234,089 $ 301,586 $ 535,675 Segment EBITDA 25,788 58,745 84,533 Depreciation expense 6,305 7,160 13,465 Amortization of intangibles 5,719 5,090 10,809 Amortization of software development intangible assets — 2,713 2,713 Severance, restructuring, and acquisition integration costs 1,590 2,622 4,212 Adjustments related to acquisitions and divestitures — 298 298 Segment assets 610,106 754,732 1,364,838 As of and for the three months ended April 2, 2023 Segment Revenues $ 275,343 $ 366,446 $ 641,789 Segment EBITDA 37,205 73,787 110,992 Depreciation expense 5,954 6,400 12,354 Amortization of intangibles 4,495 5,115 9,610 Amortization of software development intangible assets — 1,452 1,452 Severance, restructuring, and acquisition integration costs 25 1,687 1,712 Adjustments related to acquisitions and divestitures — 298 298 Segment assets 597,426 660,300 1,257,726
Schedule of Reconciliation of Total Reportable Segments' Revenues and EBITDA to Consolidated Revenues and Consolidated Income Before Taxes	The following table is a reconciliation of the total of the reportable segments’ Revenues and EBITDA to consolidated revenues and consolidated income before taxes, respectively. Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Total Segment and Consolidated Revenues $ 535,675 $ 641,789 Total Segment EBITDA $ 84,533 $ 110,992 Depreciation expense (13,465) (12,354) Amortization of intangibles (10,809) (9,610) Severance, restructuring, and acquisition integration costs (1) (4,212) (1,712) Amortization of software development intangible assets (2,713) (1,452) Adjustments related to acquisitions and divestitures (2) (298) (298) Eliminations (16) (29) Consolidated operating income 53,020 85,537 Interest expense, net (7,582) (8,201) Total non-operating pension benefit 231 488 Consolidated income before taxes $ 45,669 $ 77,824 (1) Includes restructuring and integration costs associated with acquisitions as well as costs associated with certain manufacturing footprint actions.

Income per Share (Tables)

Income per Share (Tables)	3 Months Ended
	Mar. 31, 2024
Earnings Per Share [Abstract]
Schedule of Basis for Income Per Share Computations	The following table presents the basis for the income per share computations: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Numerator: Net income $ 37,309 $ 62,945 Less: Net loss attributable to noncontrolling interest (4) (247) Net income attributable to Belden stockholders $ 37,313 $ 63,192 Denominator: Weighted average shares outstanding, basic 40,986 42,827 Effect of dilutive common stock equivalents 505 842 Weighted average shares outstanding, diluted 41,491 43,669

Credit Losses (Tables)

Credit Losses (Tables)	3 Months Ended
	Mar. 31, 2024
Credit Loss [Abstract]
Schedule of Accounts Receivable, Allowance for Credit Loss	The following table presents the activity in the trade receivables allowance for doubtful accounts for the three months ended March 31, 2024 and April 2, 2023, respectively: 2024 2023 (In thousands) Beginning balance at January 1 $ 23,114 $ 7,954 Current period provision 459 4,004 Recoveries collected (6) — Write-offs (96) (3) Fx impact (51) (25) Q1 ending balance $ 23,420 $ 11,930

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 31, 2024
Inventory Disclosure [Abstract]
Schedule of Major Classes of Inventories	The following table presents the major classes of inventories as of March 31, 2024 and December 31, 2023 , respectively: March 31, 2024 December 31, 2023 (In thousands) Raw materials $ 175,110 $ 185,233 Work-in-process 43,674 41,197 Finished goods 223,663 208,425 Gross inventories 442,447 434,855 Excess and obsolete reserves (68,028) (67,868) Net inventories $ 374,419 $ 366,987

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2024
Leases [Abstract]
Schedule of Components of Lease Expense	The components of lease expense were as follows: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Operating lease cost $ 6,875 $ 5,517 Finance lease cost Amortization of right-of-use asset $ 194 $ 201 Interest on lease liabilities 109 80 Total finance lease cost $ 303 $ 281
Supplemental Cash Flow Information Related To Leases	Supplemental cash flow information related to leases was as follows: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 6,727 $ 4,665
Supplemental Balance Sheet Information Related To Leases	Supplemental balance sheet information related to leases was as follows: March 31, 2024 December 31, 2023 (In thousands) Operating leases: Total operating lease right-of-use assets $ 124,690 $ 89,686 Accrued liabilities $ 18,753 $ 18,226 Long-term operating lease liabilities 108,174 74,941 Total operating lease liabilities $ 126,927 $ 93,167 Finance leases: Other long-lived assets, at cost $ 8,247 $ 6,560 Accumulated depreciation (1,555) (1,347) Other long-lived assets, net $ 6,692 $ 5,213 Accrued liabilities $ 1,022 $ 719 Other long-term liabilities 7,181 6,084 Total finance lease liabilities $ 8,203 $ 6,803
Supplemental Other Information Related To Leases	March 31, 2024 December 31, 2023 Weighted Average Remaining Lease Term Operating leases 10 years 6 years Finance leases 8 years 9 years Weighted Average Discount Rate Operating leases 5.7 % 5.0 % Finance leases 4.6 % 4.3 %

Long-Term Debt and Other Borr_2

Long-Term Debt and Other Borrowing Arrangements (Tables)	3 Months Ended
	Mar. 31, 2024
Debt Disclosure [Abstract]
Schedule of Carrying Values of Long-Term Debt and Other Borrowing Arrangements	The carrying values of our long-term debt were as follows: March 31, 2024 December 31, 2023 (In thousands) Revolving credit agreement due 2026 $ — $ — Senior subordinated notes: 3.375% Senior subordinated notes due 2027 486,945 497,025 3.875% Senior subordinated notes due 2028 378,735 386,575 3.375% Senior subordinated notes due 2031 324,630 331,350 Total senior subordinated notes 1,190,310 1,214,950 Less unamortized debt issuance costs (10,185) (10,739) Long-term debt $ 1,180,125 $ 1,204,211

Pension and Other Postretirem_2

Pension and Other Postretirement Obligations (Tables)	3 Months Ended
	Mar. 31, 2024
Retirement Benefits [Abstract]
Schedule of Components of Net Periodic Benefit Costs	The following table provides the components of net periodic benefit costs for our pension and other postretirement benefit plans: Pension Obligations Other Postretirement Obligations March 31, 2024 April 2, 2023 March 31, 2024 April 2, 2023 (In thousands) Three Months Ended Service cost $ 748 $ 690 $ 10 $ 3 Interest cost 3,676 3,744 238 251 Expected return on plan assets (4,047) (4,109) — — Amortization of prior service cost 45 43 — — Actuarial gains (26) (226) (117) (191) Net periodic benefit cost $ 396 $ 142 $ 131 $ 63

Comprehensive Income and Accu_2

Comprehensive Income and Accumulated Other Comprehensive Income (Loss) (Tables)	3 Months Ended
	Mar. 31, 2024
Equity [Abstract]
Schedule of Total Comprehensive Income (Loss)	The following table summarizes total comprehensive income: Three Months Ended March 31, 2024 April 2, 2023 (In thousands) Net income $ 37,309 $ 62,945 Foreign currency translation adjustments, net of tax 9,222 (17,018) Adjustments to pension and postretirement liability, net of tax (74) (280) Total comprehensive income 46,457 45,647 Less: Comprehensive loss attributable to noncontrolling interests (4) (245) Comprehensive income attributable to Belden $ 46,461 $ 45,892
Schedule of Components of Other Comprehensive Income (Loss), Net of Tax	The accumulated balances related to each component of other comprehensive loss, net of tax, are as follows: Foreign Pension and Accumulated Other (In thousands) Balance at December 31, 2023 $ (26,514) $ (14,765) $ (41,279) Other comprehensive income attributable to Belden before reclassifications 9,222 — 9,222 Amounts reclassified from accumulated other comprehensive loss — (74) (74) Net current period other comprehensive income (loss) attributable to Belden 9,222 (74) 9,148 Balance at March 31, 2024 $ (17,292) $ (14,839) $ (32,131)
Schedule of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss)	The following table summarizes the effects of reclassifications from accumulated other comprehensive loss for the three months ended March 31, 2024: Amounts Affected Line Item in the Consolidated Statements of Operations and Comprehensive Income (In thousands) Amortization of pension and other postretirement benefit plan items: Actuarial gains $ (143) (1) Prior service cost 45 (1) Total before tax (98) Tax expense 24 Total net of tax $ (74)

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($) segment
Significant Accounting Policies [Line Items]
Number of reportable segments | segment	2
Standby Letters of Credit
Significant Accounting Policies [Line Items]
Loss contingency, range of possible loss, portion not accrued	$ 7.5
Surety Bonds
Significant Accounting Policies [Line Items]
Loss contingency, range of possible loss, portion not accrued	5.4
Bank Guaranties
Significant Accounting Policies [Line Items]
Loss contingency, range of possible loss, portion not accrued	$ 4.6

Revenues - Major Product Catego

Revenues - Major Product Category (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 535,675	$ 641,789
Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	234,089	275,343
Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	301,586	366,446
Broadband Solutions
Disaggregation of Revenue [Line Items]
Revenues	112,100	131,555
Broadband Solutions | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	112,100	131,555
Broadband Solutions | Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	0	0
Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	301,586	366,446
Industrial Automation Solutions | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	0	0
Industrial Automation Solutions | Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	301,586	366,446
Smart Buildings Solutions
Disaggregation of Revenue [Line Items]
Revenues	121,989	143,788
Smart Buildings Solutions | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	121,989	143,788
Smart Buildings Solutions | Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0

Revenues - Location of Customer

Revenues - Location of Customer (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 535,675	$ 641,789
Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	234,089	275,343
Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	301,586	366,446
Americas
Disaggregation of Revenue [Line Items]
Revenues	349,219	429,100
Americas | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	166,329	213,887
Americas | Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	182,890	215,213
EMEA
Disaggregation of Revenue [Line Items]
Revenues	123,544	139,369
EMEA | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	45,688	37,448
EMEA | Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	77,856	101,921
APAC
Disaggregation of Revenue [Line Items]
Revenues	62,912	73,320
APAC | Enterprise Solutions
Disaggregation of Revenue [Line Items]
Revenues	22,072	24,008
APAC | Industrial Automation Solutions
Disaggregation of Revenue [Line Items]
Revenues	$ 40,840	$ 49,312

Revenues - Estimated and Accrue

Revenues - Estimated and Accrued Variable Consideration (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Accrued rebates included in accrued liabilities	$ 36,022	$ 49,255
Accrued returns included in accrued liabilities	14,718	15,570
Price adjustments recognized against gross accounts receivable	$ 22,884	$ 26,005

Revenues - Additional Informati

Revenues - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Apr. 02, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Contract with customer, deferred revenues	$ 29,950	$ 31,062	$ 29,295	$ 33,243
Contract with customer, deferred revenues, current	22,400
Contract with customer, deferred revenues, noncurrent	7,500
Service-Type Warranties
Disaggregation of Revenue [Line Items]
Contract with customer, deferred revenues	10,600
Contract with customer, deferred revenues, current	5,500
Contract with customer, deferred revenues, noncurrent	$ 5,100

Revenues - Deferred Revenue (De

Revenues - Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Change in Contract with Customer, Liability [Roll Forward]
Beginning balance	$ 31,062	$ 33,243
New deferrals	6,280	4,359
Revenue recognized	(7,392)	(8,307)
Ending balance	$ 29,950	$ 29,295

Revenues - Sales Commissions (D

Revenues - Sales Commissions (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Revenue from Contract with Customer [Abstract]
Sales commissions	$ 5,323	$ 5,773

Reportable Segments - Additiona

Reportable Segments - Additional Information (Details)	3 Months Ended
	Mar. 31, 2024 segment
Segment Reporting [Abstract]
Number of reportable segments	2

Reportable Segments - Operating

Reportable Segments - Operating Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023	Dec. 31, 2023
Segment Reporting Information [Line Items]
Segment Revenues	$ 535,675	$ 641,789
Depreciation expense	13,500	12,400
Amortization of intangibles	10,809	9,610
Segment assets	3,119,313		$ 3,240,191
Enterprise Solutions
Segment Reporting Information [Line Items]
Segment Revenues	234,089	275,343
Industrial Automation Solutions
Segment Reporting Information [Line Items]
Segment Revenues	301,586	366,446
Reportable Segment
Segment Reporting Information [Line Items]
Segment Revenues	535,675	641,789
Segment EBITDA	84,533	110,992
Depreciation expense	13,465	12,354
Amortization of intangibles	10,809	9,610
Amortization of software development intangible assets	2,713	1,452
Severance, restructuring, and acquisition integration costs	4,212	1,712
Adjustments related to acquisitions and divestitures	298	298
Segment assets	1,364,838	1,257,726
Reportable Segment | Software Development
Segment Reporting Information [Line Items]
Amortization of software development intangible assets	2,713	1,452
Reportable Segment | Enterprise Solutions
Segment Reporting Information [Line Items]
Segment Revenues	234,089	275,343
Segment EBITDA	25,788	37,205
Depreciation expense	6,305	5,954
Amortization of intangibles	5,719	4,495
Severance, restructuring, and acquisition integration costs	1,590	25
Adjustments related to acquisitions and divestitures	0	0
Segment assets	610,106	597,426
Reportable Segment | Enterprise Solutions | Software Development
Segment Reporting Information [Line Items]
Amortization of software development intangible assets	0	0
Reportable Segment | Industrial Automation Solutions
Segment Reporting Information [Line Items]
Segment Revenues	301,586	366,446
Segment EBITDA	58,745	73,787
Depreciation expense	7,160	6,400
Amortization of intangibles	5,090	5,115
Severance, restructuring, and acquisition integration costs	2,622	1,687
Adjustments related to acquisitions and divestitures	298	298
Segment assets	754,732	660,300
Reportable Segment | Industrial Automation Solutions | Software Development
Segment Reporting Information [Line Items]
Amortization of software development intangible assets	$ 2,713	$ 1,452

Reportable Segments - Reconcili

Reportable Segments - Reconciliation of Total Reportable Segments' Revenues and EBITDA to Consolidated Revenues and Consolidated Income Before Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	$ 535,675	$ 641,789
Depreciation expense	(13,500)	(12,400)
Amortization of intangibles	(10,809)	(9,610)
Operating income	53,020	85,537
Interest expense, net	(7,582)	(8,201)
Non-operating pension benefit	231	488
Consolidated income before taxes	45,669	77,824
Reportable Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	535,675	641,789
Segment EBITDA	84,533	110,992
Depreciation expense	(13,465)	(12,354)
Amortization of intangibles	(10,809)	(9,610)
Severance, restructuring, and acquisition integration costs	(4,212)	(1,712)
Amortization of software development intangible assets	(2,713)	(1,452)
Adjustments related to acquisitions and divestitures	(298)	(298)
Operating income	53,020	85,537
Intersegment Eliminations
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	$ (16)	$ (29)

Income per Share - Basis for In

Income per Share - Basis for Income Per Share Computations (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Numerator:
Net income	$ 37,309	$ 62,945
Less: Net loss attributable to noncontrolling interest	(4)	(247)
Net income attributable to Belden stockholders	$ 37,313	$ 63,192
Denominator:
Weighted average shares outstanding, basic (in shares)	40,986	42,827
Effect of dilutive common stock equivalents (in shares)	505	842
Weighted average shares outstanding, diluted (in shares)	41,491	43,669

Income per Share - Additional I

Income per Share - Additional Information (Details) - shares shares in Millions	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Earnings Per Share [Abstract]
Outstanding equity awards not included in diluted weighted average shares outstanding (in shares)	0.1	0.2
Outstanding equity awards not included in diluted weighted average shares outstanding due to performance conditions not being met (in shares)	0.3	0.1

Credit Losses (Details)

Credit Losses (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Beginning balance	$ 23,114	$ 7,954
Current period provision	459	4,004
Recoveries collected	(6)	0
Write-offs	(96)	(3)
Fx impact	(51)	(25)
Ending balance	$ 23,420	$ 11,930

Inventories (Details)

Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 175,110	$ 185,233
Work-in-process	43,674	41,197
Finished goods	223,663	208,425
Gross inventories	442,447	434,855
Excess and obsolete reserves	(68,028)	(67,868)
Net inventories	$ 374,419	$ 366,987

Leases - Additional Information

Leases - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023	Dec. 31, 2023
Lessee, Lease, Description [Line Items]
Variable lease, payment	$ 900	$ 800
Operating lease right-of-use assets	124,690		$ 89,686
Operating lease liability	126,927		$ 93,167
Fixed payments remaining	21,000
Liability for expected future payments	11,000	$ 8,800
2024 New Leases
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets	34,200
Operating lease liability	$ 33,200
Minimum
Lessee, Lease, Description [Line Items]
Operating and finance lease, term of contract	1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating and finance lease, term of contract	20 years

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Leases [Abstract]
Operating lease cost	$ 6,875	$ 5,517
Amortization of right-of-use asset	194	201
Interest on lease liabilities	109	80
Total finance lease cost	$ 303	$ 281

Leases - Supplemental Cash Flow

Leases - Supplemental Cash Flow Information Related To Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Leases [Abstract]
Operating cash flows from operating leases	$ 6,727	$ 4,665

Leases - Supplemental Balance S

Leases - Supplemental Balance Sheet Information Related To Leases (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Leases [Abstract]
Total operating lease right-of-use assets	$ 124,690	$ 89,686
Accrued liabilities	$ 18,753	$ 18,226
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued liabilities	Accrued liabilities
Long-term operating lease liabilities	$ 108,174	$ 74,941
Total operating lease liabilities	126,927	93,167
Other long-lived assets, at cost	$ 8,247	$ 6,560
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other long-lived assets	Other long-lived assets
Accumulated depreciation	$ (1,555)	$ (1,347)
Other long-lived assets, net	6,692	5,213
Accrued liabilities	$ 1,022	$ 719
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued liabilities	Accrued liabilities
Other long-term liabilities	$ 7,181	$ 6,084
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities
Total finance lease liabilities	$ 8,203	$ 6,803

Leases - Supplemental Other Inf

Leases - Supplemental Other Information Related To Leases (Details)	Mar. 31, 2024	Dec. 31, 2023
Weighted Average Remaining Lease Term
Operating leases	10 years	6 years
Finance leases	8 years	9 years
Weighted Average Discount Rate
Operating leases	5.70%	5%
Finance leases	4.60%	4.30%

Long-Lived Assets (Details)

Long-Lived Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Property, Plant and Equipment [Abstract]
Depreciation expense	$ 13.5	$ 12.4
Amortization expense	$ 13.5	$ 11.1

Long-Term Debt and Other Borr_3

Long-Term Debt and Other Borrowing Arrangements - Carrying Values of Long-Term Debt and Other Borrowing Arrangements (Details) - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,190,310,000	$ 1,214,950,000
Less unamortized debt issuance costs	(10,185,000)	(10,739,000)
Long-term debt	1,180,125,000	1,204,211,000
Line of Credit | Revolving Credit Facility | Revolving credit agreement due 2026
Debt Instrument [Line Items]
Long-term debt, gross	0	0
Senior Subordinated Notes | 3.375% Senior subordinated notes due 2027
Debt Instrument [Line Items]
Long-term debt, gross	$ 486,945,000	497,025,000
Senior subordinated notes interest rate	3.375%
Senior Subordinated Notes | 3.875% Senior subordinated notes due 2028
Debt Instrument [Line Items]
Long-term debt, gross	$ 378,735,000	386,575,000
Senior subordinated notes interest rate	3.875%
Senior Subordinated Notes | 3.375% Senior subordinated notes due 2031
Debt Instrument [Line Items]
Long-term debt, gross	$ 324,630,000	$ 331,350,000
Senior subordinated notes interest rate	3.375%

Long-Term Debt and Other Borr_4

Long-Term Debt and Other Borrowing Arrangements - Additional Information (Details) € in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)	Mar. 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)
Debt Instrument [Line Items]
Revolver borrowings outstanding	$ 1,190,310,000		$ 1,214,950,000
Senior subordinated notes	1,190,300,000
Senior Subordinated Notes
Debt Instrument [Line Items]
Fair value of senior subordinated notes	1,139,900,000
Revolving credit agreement due 2026 | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 300,000,000
Commitment fee percentage	0.25%
Fixed charge coverage, minimum threshold (as a percent)	90%
Revolver borrowings outstanding	$ 0		0
Revolving credit agreement, available borrowing capacity	$ 292,600,000
Revolving credit agreement due 2026 | Minimum | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as a percent)	1.25%
Revolving credit agreement due 2026 | Minimum | Line of Credit | Base Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as a percent)	0.25%
Revolving credit agreement due 2026 | Maximum | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as a percent)	1.75%
Revolving credit agreement, remaining borrowing capacity	$ 20,000,000
Revolving credit agreement due 2026 | Maximum | Line of Credit | Base Rate | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate (as a percent)	0.75%
3.375% Senior subordinated notes due 2027
Debt Instrument [Line Items]
Senior subordinated notes	$ 486,900,000
3.375% Senior subordinated notes due 2027 | Senior Subordinated Notes
Debt Instrument [Line Items]
Revolver borrowings outstanding	$ 486,945,000		497,025,000
Debt instrument, amount outstanding | €		€ 450
Senior subordinated notes interest rate	3.375%	3.375%
3.875% Senior subordinated notes due 2028
Debt Instrument [Line Items]
Senior subordinated notes	$ 378,700,000
3.875% Senior subordinated notes due 2028 | Senior Subordinated Notes
Debt Instrument [Line Items]
Revolver borrowings outstanding	$ 378,735,000		386,575,000
Debt instrument, amount outstanding | €		€ 350
Senior subordinated notes interest rate	3.875%	3.875%
3.375% Senior subordinated notes due 2031 | Senior Subordinated Notes
Debt Instrument [Line Items]
Revolver borrowings outstanding	$ 324,630,000		$ 331,350,000
Debt instrument, amount outstanding | €		€ 300
Senior subordinated notes interest rate	3.375%	3.375%
Senior subordinated notes	$ 324,600,000

Net Investment Hedge (Details)

Net Investment Hedge (Details) $ in Thousands, € in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)	Apr. 02, 2023 USD ($)	Mar. 31, 2024 EUR (€)
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cumulative translation adjustment	$ 9,222	$ (17,018)
Senior Subordinated Notes
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Senior subordinated debt, hedged | €			€ 567.8
Cumulative translation adjustment	$ 12,700	$ (9,100)

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Income Tax Disclosure [Abstract]
Tax expense	$ 8,360	$ 14,879
Effective tax rate	18.30%	19.10%

Pension and Other Postretirem_3

Pension and Other Postretirement Obligations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Pension Obligations
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 748	$ 690
Interest cost	3,676	3,744
Expected return on plan assets	(4,047)	(4,109)
Amortization of prior service cost	45	43
Actuarial gains	(26)	(226)
Net periodic benefit cost	396	142
Other Postretirement Obligations
Defined Benefit Plan Disclosure [Line Items]
Service cost	10	3
Interest cost	238	251
Expected return on plan assets	0	0
Amortization of prior service cost	0	0
Actuarial gains	(117)	(191)
Net periodic benefit cost	$ 131	$ 63

Comprehensive Income and Accu_3

Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Total Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Equity [Abstract]
Net income	$ 37,309	$ 62,945
Foreign currency translation adjustments, net of tax	9,222	(17,018)
Adjustments to pension and postretirement liability, net of tax	(74)	(280)
Total comprehensive income	46,457	45,647
Less: Comprehensive loss attributable to noncontrolling interests	(4)	(245)
Comprehensive income attributable to Belden	$ 46,461	$ 45,892

Comprehensive Income and Accu_4

Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Components of Other Comprehensive Income (Loss), Net of Tax (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,166,257
Other comprehensive income attributable to Belden before reclassifications	9,222
Amounts reclassified from accumulated other comprehensive loss	(74)
Net current period other comprehensive income (loss) attributable to Belden	9,148
Ending balance	1,155,845
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(41,279)
Ending balance	(32,131)
Foreign Currency Translation Component
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(26,514)
Other comprehensive income attributable to Belden before reclassifications	9,222
Amounts reclassified from accumulated other comprehensive loss	0
Net current period other comprehensive income (loss) attributable to Belden	9,222
Ending balance	(17,292)
Pension and Other  Postretirement Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(14,765)
Other comprehensive income attributable to Belden before reclassifications	0
Amounts reclassified from accumulated other comprehensive loss	(74)
Net current period other comprehensive income (loss) attributable to Belden	(74)
Ending balance	$ (14,839)

Comprehensive Income and Accu_5

Comprehensive Income and Accumulated Other Comprehensive Income (Loss) - Summary of Effects of Reclassifications from Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Apr. 02, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	$ (45,669)	$ (77,824)
Tax expense	8,360	14,879
Total net of tax	(37,313)	$ (63,192)
Amounts  Reclassified from Accumulated Other Comprehensive Loss | Actuarial gains
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other nonoperating expense (income)	(143)
Amounts  Reclassified from Accumulated Other Comprehensive Loss | Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other nonoperating expense (income)	45
Amounts  Reclassified from Accumulated Other Comprehensive Loss | Pension and Other  Postretirement Benefit Plans
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Total before tax	(98)
Tax expense	24
Total net of tax	$ (74)

Share Repurchase (Details)

Share Repurchase (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		75 Months Ended
	Mar. 31, 2024	Apr. 02, 2023	Mar. 31, 2024	Apr. 30, 2023	Dec. 31, 2018
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (in shares)	0.7	0.6	7.4
Value of shares repurchased	$ 57.9	$ 50	$ 485
Treasury stock acquired, average cost per share (in usd per share)	$ 85.66	$ 84.18	$ 65.73
Stock repurchase program, remaining authorized repurchase amount	$ 115		$ 115
2018 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount					$ 300
2023 Share Repurchase Program
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount				$ 300

Subsequent Event (Details)

Subsequent Event (Details) $ in Millions	Apr. 30, 2024 USD ($)
Subsequent Event | Precision Optical Technologies
Subsequent Event [Line Items]
Acquisition price paid	$ 290