Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Estimated duration of remediation (in years) Site Contingency, Estimated Duration Of Remediation Site Contingency, Estimated Duration Of Remediation Proceeds from (payments on) fixed rate senior notes Proceeds from (Repayments of) Notes Payable Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Remaining performance obligations expected recognition period Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Adjustment to Compensation, Amount Adjustment to Compensation Amount Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Customer [Axis] Customer [Axis] Segment Reporting [Abstract] Segment Reporting [Abstract] Other Commercial And Other [Member] Commercial And Other [Member] Common stock, $0.01 par value; issued shares: 47,417,939 at September 27, 2026 and 47,424,847 at December 28, 2025; outstanding shares: 46,217,345 at September 27, 2026 and 46,185,578 at December 28, 2025 Common Stock, Value, Issued Amortization of defined benefit pension and postretirement plan items: Defined Benefit Pension and Postretirement Plan Amortization [Abstract] Defined Benefit Pension and Postretirement Plan Amortization Revenue from External Customers by Products and Services [Table] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Table] Definite-lived trademarks Indefinite-lived trademarks Trademarks [Member] Schedule of Long-Term Debt Schedule of Long-Term Debt Instruments [Table Text Block] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Pension Plans Retirement Benefits [Text Block] Recognized over time Transferred over Time [Member] Credit Facility Line of Credit [Member] Restatement Determination Date Restatement Determination Date Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Derivative Instrument [Axis] Derivative Instrument [Axis] TransponderTech TransponderTech [Member] TransponderTech Schedule of Income Tax Provision and Effective Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Contract with Customer, Basis of Pricing [Domain] Contract with Customer, Basis of Pricing [Domain] Amendment Flag Amendment Flag Goodwill [Line Items] Goodwill [Line Items] Current Liabilities Liabilities, Current [Abstract] Weighted average price (in USD per share) Shares Acquired, Average Cost Per Share Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Proprietary technology Developed Technology Rights [Member] Change in estimate Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Change in Estimate of Transaction Price Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Foreign exchange translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in USD per share) Common Stock, Par or Stated Value Per Share Amount Reclassified from AOCI Reclassification out of Accumulated Other Comprehensive Income [Member] Acquired intangibles, net Acquired intangible assets, net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Beginning balance (in shares) Ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Derivative notional amount Notional Amount Derivative, Notional Amount Weighted average common shares outstanding (in shares) Weighted average basic common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Retirement Benefits [Abstract] Retirement Benefits [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Number of reportable segments Number of Reportable Segments Total current liabilities Liabilities, Current Discrete income tax benefits Effective Income Tax Rate Reconciliation, Discrete Items, Amount Effective Income Tax Rate Reconciliation, Discrete Items, Amount 2.75% Fixed Rate Senior Notes due April 2031 2.75% Unsecured Senior Notes due April 2031 [Member] 2.75% Unsecured Senior Notes due April 2031 SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Entity Address, City or Town Entity Address, City or Town Net derivatives at fair value Derivative, Fair Value, Net Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Net Carrying Amount Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Pension non-service cost (income) Pension Non Service Expense (Income) [Abstract] Pension Non Service Expense (Income) Level 2 Fair Value, Inputs, Level 2 [Member] Accumulated Amortization Intangible Asset, Finite-Lived, Accumulated Amortization Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Current portion of long-term debt Less: Current portion of long-term debt Long-Term Debt, Current Maturities Net sales Revenue Benchmark [Member] United States UNITED STATES Subsequent Event Type [Axis] Subsequent Event Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Recent Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Information by Business Segments Segment Reporting [Table Text Block] Other comprehensive income (loss), net of tax Net other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent 2.50% Fixed Rate Senior Notes due August 2030 2.50% Unsecured Senior Notes due 2030 [Member] 2.50% Unsecured Senior Notes due 2030 Acquired Intangible Assets Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill Varex Imaging Varex Imaging Corporation [Member] Varex Imaging Corporation Total debt, net Long-Term Debt Customer list/relationships/backlog Customer-Related Intangible Assets [Member] Document Period End Date Document Period End Date Changes in operating assets and liabilities excluding the effect of business acquired: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Net cash provided by (used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Costs and expenses Costs and expenses Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Treasury stock, 1,200,594 shares at September 27, 2026 and 1,239,269 at December 28, 2025 Treasury Stock, Common, Value Granted (in USD per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Enterprise value Business Combination, Price of Acquisition, Expected Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Total liabilities recorded at fair value Liabilities, Fair Value Disclosure Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Schedule of Changes in Product Warranty Reserve Schedule of Product Warranty Liability [Table Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Deductions Standard Product Warranty Accrual, Decrease for Payments Earnings Per Share [Abstract] Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Line Items] Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Schedule of Stock Option Transactions for Employee Stock Option Plans Schedule of Share-Based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Schedule of Sales by Product Line Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Product and Service, Revenue [Table Text Block] Total Liabilities Liabilities Trading Symbol Trading Symbol Geographical [Domain] Geographical [Domain] Indefinite-lived trademarks Intangible Asset, Excluding Goodwill, Indefinite-Lived Purchases of property, plant and equipment Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name Amounts reclassified from AOCI Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Schedule of Indefinite-Lived Intangible Assets [Table] Intangible Asset, Indefinite-Lived [Table] Pension and Postretirement Benefits Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Other debt Long-Term Debt, Gross Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Instrumentation Instrumentation [Member] Instrumentation. Credit Facility [Domain] Credit Facility [Domain] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Non-compete agreements Noncompete Agreements [Member] Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Intangible Asset, Indefinite-Lived [Line Items] Intangible Asset, Indefinite-Lived [Line Items] Weighted average diluted common shares outstanding (in shares) Weighted average diluted common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Line Of Credit Facility [Table] Line of Credit Facility [Table] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Property, plant and equipment, net of accumulated depreciation and amortization of $1,171.6 at September 27, 2026 and $1,107.9 at December 28, 2025 Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Other debt Other Debt [Member] Other Debt Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Derivative liability, fair value Derivative Liability, Subject to Master Netting Arrangement, before Offset Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Effect of dilutive securities (primarily stock options) (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Other operating, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Treasury Stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Stock-based compensation and other APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Effective tax rate Effective Income Tax Rate Reconciliation, Percent Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Indefinite-lived Intangible Assets, Major Class Name [Domain] Intangible Asset, Indefinite-Lived, Class [Domain] Beginning balance (in USD per share) Ending balance (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value All Executive Categories All Executive Categories [Member] All Other Countries Other Than United States And Europe And Asia [Member] Countries Other Than United States And Europe And Asia Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Preferred stock, par value (in USD per share) Preferred Stock, Par or Stated Value Per Share Long-term debt fair value Long-Term Debt, Fair Value NL Acoustics Noiseless Acoustics Oy (NL Acoustics) [Member] Noiseless Acoustics Oy (NL Acoustics) Schedule of Defined Benefit Pension Plans and Postretirement Benefit Plans Schedule of Net Benefit Costs [Table Text Block] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Beginning balance (in USD per share) Ending balance (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Concentration Risk Type [Domain] Concentration Risk Type [Domain] Schedule of Basic and Diluted Earnings per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Deferred taxes and income taxes receivable (payable), net Increase (Decrease) In Deferred And Income Taxes Payable Increase (Decrease) In Deferred And Income Taxes Payable Business Segments Segment Reporting [Text Block] Outstanding letters of credit Long-Term Line of Credit Minimum Minimum [Member] Expiration Date Trading Arrangement Expiration Date Hedging Relationship [Axis] Hedging Relationship [Axis] Balance at beginning of year Balance at end of period Standard Product Warranty Accrual Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Effects of exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Unbilled receivables, net Unbilled Receivables, Current Business Combination [Line Items] Business Combination [Line Items] Exercisable at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Pension non-service cost (income) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Foreign currency changes and other Goodwill, Foreign Currency Translation and Measurement Period Adjustments Accounts receivable and unbilled receivables Increase (Decrease) in Accounts and Other Receivables Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Schedule of Restricted Stock Activity Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] Consideration transferred Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Fair Value Exercise Price Award Exercise Price Unrealized gain on equity investment Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Remeasurement, Gain Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Acquisition of redeemable noncontrolling interest Adjustments to Retained Earnings, Acquisition Of Redeemable Noncontrolling Interest Adjustments to Retained Earnings, Acquisition Of Redeemable Noncontrolling Interest Authorized stock repurchase Share Repurchase Program, Authorized, Amount Segment Reporting [Line Items] Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segment [Domain] Segments [Domain] Europe Europe [Member] Long-Term Debt Debt Disclosure [Text Block] Debt discount and debt issuance costs Debt Issuance Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Business Combination [Table] Business Combination [Table] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Foreign currency forward contracts Foreign currency forward contracts Foreign Exchange Contract [Member] Number Of Authorized Shares Not Disclosed Number Of Authorized Shares Not Disclosed Number Of Authorized Shares Not Disclosed Total costs and expenses Costs and expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Fixed interest rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Total Stockholders’ Equity Beginning balance Ending balance Equity, Attributable to Parent Prepaid pension assets Assets for Plan Benefits, Defined Benefit Plan Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Insider Trading Policies and Procedures [Line Items] Beginning balance (in shares) Ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Aerospace and Defense Electronics Aerospace and Defense Electronics [Member] Aerospace and Defense Electronics. Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Other financing, net Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Selling, general and administrative Selling, general and administrative Selling, General and Administrative Expense Supplemental Balance Sheet Information Supplemental Balance Sheet Disclosures [Text Block] Patents Patents [Member] Business Combination [Domain] Business Combination [Domain] U.S. Govt. United States Government [Member] United States Government [Member] Letter of Credit Letter of Credit [Member] Canceled (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Shares excluded from computation of diluted earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Segment net sales Revenue, Segment Benchmark [Member] Schedule of Goodwill Goodwill [Table Text Block] Entity Central Index Key Entity Central Index Key Accumulated depreciation and amortization Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Components of net period pension benefit expense Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Additional paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Corporate expense Corporate Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Business Combination [Axis] Business Combination [Axis] Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Payments for civil penalty Payments for Legal Settlements Remaining performance obligation Revenue, Remaining Performance Obligation, Percentage Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] (Gains) losses on equity securities Gain (Loss) on Investments Derivatives designated as hedging instruments: Designated as Hedging Instrument [Member] Inter-segment Eliminations Intersegment Eliminations [Member] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Carrying Value of Acquired Finite-Lived Intangible Assets Intangible Asset, Finite-Lived [Table Text Block] Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] City Area Code City Area Code Amortization of net prior service (income) cost Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] Restricted Stock Restricted Stock [Member] Accumulated Other Comprehensive Income (Loss) Total AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Net gain (loss) recognized in other income (expense), net—Foreign Exchange Contracts Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), Adjustments, after Tax Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Weighted Average Fair Value per Share Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Statement [Line Items] Statement [Line Items] Total Assets Total Teledyne identifiable assets Assets Reserves for environmental remediation obligations Accrual for Environmental Loss Contingencies Amortization of net prior service cost (income) Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Operating Segments Operating Segments [Member] Grant date fair value (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Pension and postretirement benefit adjustments, net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Interest and debt income (expense), net Interest and debt income (expense), net Interest Expense, Nonoperating Portion of reserves included in current accrued liabilities Accrued Environmental Loss Contingencies, Current Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Product warranty expense Standard Product Warranty Accrual, Increase for Warranties Issued Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent PEO PEO [Member] Stock-based compensation Share-Based Payment Arrangement, Expense Other long-term liabilities Other Liabilities, Noncurrent Goodwill Goodwill, beginning balance Goodwill, ending balance Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Goodwill Acquired Current year acquisitions Goodwill, Acquired During Period Granted (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Cash equivalents Cash Equivalents, at Carrying Value Revenue recognized from contract liabilities Contract with Customer, Liability, Revenue Recognized Subsequent Event Type [Domain] Subsequent Event Type [Domain] Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract] Intangible Asset, Excluding Goodwill, after Accumulated Amortization [Abstract] Retained Earnings Retained Earnings [Member] Revolving Credit Facility Revolving Credit Facility [Member] Forfeited/Canceled (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Amortization of net actuarial (gain) loss Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Foreign Currency Translation Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Diluted earnings per common share (in USD per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Cash flow hedges Cash Flow Hedging [Member] Acquired intangible asset amortization Acquired intangible asset amortization Intangible Asset, Finite-Lived, Amortization Expense Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Schedule of Purchase Price Goodwill Acquired, and Intangible Assets Acquired Business Combination [Table Text Block] Research and development Research and development Research and Development Expense Adjustments to reconcile net income (loss) including noncontrolling interest to net cash provided by (used in) operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Expected reclassification of gain (loss) over the next 12 months Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Net sales Revenue from Contract with Customer, Excluding Assessed Tax Available balance Line of Credit Facility, Remaining Borrowing Capacity Interest cost on benefit obligation Defined Benefit Plan, Interest Cost Number of shares acquired (in shares) Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Shares Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Shares Fair Value Asset Derivative Asset Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Goodwill and Acquired Intangible Assets Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Less: Comprehensive income (loss) attributable to noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest (Gain) loss on cash flow hedges: Loss on Cash Hedges [Abstract] Loss on Cash Hedges Total acquired intangible assets Intangible Asset, Excluding Goodwill, before Accumulated Amortization Revenue Recognition and Contract Balances Revenue from Contract with Customer [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Schedule of Effect of Derivative Instruments Designated as Cash Flow Hedges Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Other investing, net Payment for (Proceeds from) Other Investing Activity Inventories Increase (Decrease) in Inventories Segment Reporting [Table] Segment Reporting [Table] Excise tax on treasury stock repurchased Share Repurchase Program, Excise Tax Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income (loss) Operating Income (Loss) DD-Scientific DD Scientific [Member] DD Scientific Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Current Fiscal Year End Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Derivative [Line Items] Derivative [Line Items] Asia Asia [Member] Business Acquisitions Business Combination [Text Block] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost—benefits earned during the period Defined Benefit Plan, Service Cost Digital Imaging Digital Imaging [Member] Digital Imaging. Net gain (loss) reclassified from AOCI into revenue/cost of sales—Foreign Exchange Contracts Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Finished goods Inventory, Finished Goods, Gross Treasury stock (in shares) Treasury Stock, Common, Shares Contract with Customer, Basis of Pricing [Axis] Contract with Customer, Basis of Pricing [Axis] Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Repaid fixed fate senior notes Debt Instrument, Repaid, Principal Equity Components [Axis] Equity Components [Axis] Stock-based compensation Stock or Unit Option Plan Expense Product and Service [Domain] Product and Service [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Less: Net income (loss) attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest Long-term deferred tax liabilities Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Comprehensive income (loss) attributable to Teledyne Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other assets, net Other Assets, Noncurrent Document Type Document Type Purchases of businesses, net of cash acquired Cash consideration, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Accrued liabilities Accrued Liabilities, Current Fixed-price contracts Fixed-Price Contract [Member] Fair Value as of Grant Date Award Grant Date Fair Value Schedule of Carrying Value of Acquired Indefinite-Lived Intangible Assets Intangible Asset, Indefinite-Lived [Table Text Block] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Schedule of Goodwill [Table] Goodwill [Table] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Remaining available repurchase authorization Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Other long-term liabilities Contract with Customer, Liability, Noncurrent Acquisition Standard Product Warranty Accrual, Increase from Business Combination Work in process Inventory, Work in Process, Gross Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Net Investment Hedging Net Investment Hedging [Member] Qioptiq Optical Systems And Advanced Electronics Systems Businesses (Qioptiq) [Member] Optical Systems And Advanced Electronics Systems Businesses (Qioptiq) Income (loss) before income taxes Income (loss) before income taxes (Gain) loss recognized in income on derivatives Total before tax Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (see Note 15) Commitments and Contingencies Gross Carrying Amount Intangible Asset, Finite-Lived, before Accumulated Amortization Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] 2.25% Fixed Rate Senior Notes due April 2028 2.25% Unsecured Senior Notes due April 2028 [Member] 2.25% Unsecured Senior Notes due April 2028 Goodwill [Roll Forward] Goodwill [Roll Forward] Recognized at a point in time Transferred at Point in Time [Member] Liabilities, Redeemable Noncontrolling Interest and Stockholders’ Equity Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Inventories, net Total inventories, net Inventory, Net Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Engineered Systems Engineered Systems Engineered Systems [Member] Engineered systems. Fair Value Measurement Fair Value Disclosures [Text Block] Movement in Standard Product Warranty Accrual [Roll Forward] Movement in Standard Product Warranty Accrual [Roll Forward] Share repurchases (in shares) Treasury Stock, Shares, Acquired PEO Name PEO Name Carrying value Long-Term Debt, Excluding Other Long-Term Debt, Excluding Other Geographical [Axis] Geographical [Axis] Accrued expenses and other liabilities Increase (Decrease) in Accrued Liabilities Non-service retirement benefit income (expense), net Non-service retirement benefit income (expense), net Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component Total contract liabilities Contract with Customer, Liability Cash Flow Hedges and Other Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Proceeds from (payments on) other debt Proceeds from (Repayments of) Other Debt Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Treasury stock repurchased Share repurchases amount Treasury Stock, Value, Acquired, Cost Method Product concentration Product Concentration Risk [Member] Exercised (in USD per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Cash and cash equivalents—beginning of period Cash and cash equivalents—end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Treasury stock issued Stock Issued During Period, Value, Treasury Stock Reissued Schedule of Finite-Lived Intangible Assets [Table] Intangible Asset, Finite-Lived [Table] Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Schedule of Reclassification out of Accumulated Other Comprehensive Income Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] 1.60% Fixed Rate Senior Notes due April 2026 1.60% Unsecured Senior Notes due April 2026 [Member] 1.60% Unsecured Senior Notes due April 2026 Comprehensive income (loss) including noncontrolling interest Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Debt Instrument [Axis] Debt Instrument [Axis] Acquisition of redeemable noncontrolling interest Payments for Repurchase of Redeemable Noncontrolling Interest Customer [Domain] Customer [Domain] Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Schedule of Notional Amounts of Outstanding Foreign Currency Contracts Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Basic earnings per common share (in USD per share) Earnings Per Share, Basic Accrued liabilities Contract with Customer, Liability, Current Purchases of treasury stock, including excise tax Payments for Repurchase of Common Stock Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Long-term debt, net of current portion Total long-term debt, net of current portion Long-Term Debt, Excluding Current Maturities Net gain (loss) recognized in AOCI Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification and Tax Award Type [Axis] Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Product and Service [Axis] Product and Service [Axis] Hedge activity, net of tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax, Parent Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Redeemable Noncontrolling Interest Temporary Equity, Including Noncontrolling Interest Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover page. Cover [Abstract] Derivative Contract Type [Domain] Derivative Contract [Domain] Net sales fixed price contracts percent Concentration Risk, Percentage Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Equity Awards Adjustments Equity Awards Adjustments [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Number of acquisitions Business Combination, Number of Businesses Acquired Total Liabilities, Redeemable Noncontrolling Interest and Stockholders’ Equity Liabilities and Equity Micropac Micropac Industries, Inc. [Member] Micropac Industries, Inc. Stock Options Share-Based Payment Arrangement, Option [Member] Environmental Instrumentation Environmental Instrumentation [Member] Environmental instrumentation. Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Tabular List, Table Tabular List [Table Text Block] Other income (expense), net Other income (expense), net Other Nonoperating Income (Expense) Name Awards Close in Time to MNPI Disclosures, Individual Name Stockholders’ Equity Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Forfeited/Canceled (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Total 2025 Acquisitions [Member] 2025 Acquisitions Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Raw materials and supplies Inventory, Raw Materials and Supplies, Gross Preferred stock, $0.01 par value; outstanding shares—none Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Marine Instrumentation Marine Instrumentation [Member] Marine instrumentation. Hedging Designation [Domain] Hedging Designation [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Reconciliation to Income (loss) before income taxes Segment Reporting, Income (Loss) before Income Tax [Abstract] Credit Facility [Axis] Credit Facility [Axis] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total assets recorded at fair value Assets, Fair Value Disclosure Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Number of product lines Number of Product Lines Number of Product Lines Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Consideration Transferred Business Combination, Consideration Transferred Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Indefinite-lived Intangible Assets [Axis] Intangible Asset, Indefinite-Lived, Class [Axis] Name Trading Arrangement, Individual Name Cross-currency swap agreements Cross-currency swaps Currency Swap [Member] Cash and cash equivalents Cash and Cash Equivalent Proposed charges settled Loss Contingency, Claims Settled, Number SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Company Selected Measure Amount Company Selected Measure Amount Derivatives not designated as hedging instruments: Not Designated as Hedging Instrument [Member] Net income (loss) including noncontrolling interest Net income (loss) including noncontrolling interest Net income (loss) including noncontrolling interest Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Current Assets Assets, Current [Abstract] Test and Measurement Instrumentation Test and Measurement Instrumentation [Member] Test and Measurement Instrumentation [Member] Fair Value Liability Derivative Liability Total 2026 Acquisitions [Member] 2026 Acquisitions Non-PEO NEO Non-PEO NEO [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Vested (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Provision (benefit) for income taxes Income tax impact Income Tax Expense (Benefit) Effect of offset Derivative, Fair Value, Amount Offset Derivative, Fair Value, Amount Offset Cost of sales Cost of sales Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Consolidation Consolidation, Policy [Policy Text Block] Change in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Amortization of net actuarial loss (gain) Defined Benefit Plan, Amortization of Gain (Loss) Accumulated Other Comprehensive Income (Loss) [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net income (loss) attributable to Teledyne Net income (loss) Total Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from exercise of stock options Proceeds from Stock Options Exercised Schedule of Changes in AOCI by Component Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Options exercisable at end of period (in USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Schedule of Contract Liabilities Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Derivative asset, fair value Derivative Asset, Subject to Master Netting Arrangement, before Offset General Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]