Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Federal Income Tax Jurisdiction, Domestic Federal [Member] Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Carrying Value Reported Value Measurement [Member] Diluted earnings (loss) available to common shareholders Net Income (Loss) Available to Common Stockholders, Diluted Audit Information [Abstract] Audit Information Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Schedule of Changes in Liability for Unrecognized Tax Benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Segment Reporting [Abstract] Segment Reporting [Abstract] Schedule of Estimated Amortization Expense for Existing Intangible Assets Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] Restructuring Plan [Axis] Restructuring Plan [Axis] Accrued compensation and benefits Employee-related Liabilities, Current State income taxes-net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent $24.35 - $35.38 Third Range [Member] Third range. Consulting and legal costs related to projects to integrate recent acquisitions Business Combination, Integration-Related Cost, Expense Offering period Share-Based Compensation Arrangement By Share-Based Payment Award, Offering Period Share-Based Compensation Arrangement By Share-Based Payment Award, Offering Period Weighted-average remaining life of intangible assets Finite-Lived Intangible Assets, Weighted-Average Remaining Life Finite-Lived Intangible Assets, Weighted-Average Remaining Life Leases Lessee, Finance Leases [Text Block] Withholding taxes Effective Income Tax Rate Reconciliation, Withholding Taxes, Amount Effective Income Tax Rate Reconciliation, Withholding Taxes, Amount Year 1 Finance Lease, Liability, to be Paid, Year One Derivative Instrument [Axis] Derivative Instrument [Axis] Enacted changes in tax laws or rates Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent U.S. branch income Effective Income Tax Rate Reconciliation, Domestic Income, Percent Effective Income Tax Rate Reconciliation, Domestic Income, Percent Philippines PHILIPPINES Lasers Lasers Segment [Member] Lasers Segment Deferred: Deferred Federal, State and Local, Tax Expense (Benefit) [Abstract] Total Current Current Income Tax Expense (Benefit) Debt instrument conversion, conversion price per share (in usd per share) Debt Instrument, Convertible, Conversion Price Charged to Other Accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account Share-based and deferred compensation (in shares) Deferred Compensation Arrangement With Individual Allocated Share-Based Compensation, Shares Deferred compensation arrangement with individual, allocated share based compensation expense, shares. Mandatory Convertible Preferred Stock Convertible Preferred Stock Subject to Mandatory Redemption [Member] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Total deferred income tax liabilities Deferred Tax Liabilities, Other Leases [Abstract] Leases [Abstract] Other Comprehensive Income (Loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] State and local income taxes Taxes on non U.S. earnings Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Denso Corporation Denso Corporation [Member] Denso Corporation Building, Building Improvements and Land Improvements Building, Building Improvements And Land Improvements [Member] Building improvements and land improvements. Stock option issued (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Non-deductible accruals Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Nonvested, beginning balance (in shares) Nonvested, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Foreign Deferred Foreign Income Tax Expense (Benefit) Retirement Benefits [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Number of reporting markets Number of reporting segments Number of Reportable Segments Total Current Liabilities Liabilities, Current Work in progress Inventory, Work in Process, Net of Reserves Less: amounts representing interest Lessee, Operating And Finance Lease, Liability, Undiscounted Excess Amount Lessee, Operating And Finance Lease, Liability, Undiscounted Excess Amount Entity Address, City or Town Entity Address, City or Town Integration, site consolidation and other costs Integration, Site Consolidated And Other Costs Integration, Site Consolidated And Other Costs Units granted (in shares) 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] Borrowings on local lines of credit Local Lines Of Credit [Member] Local Lines Of Credit Other intangible assets, net Net Book Value Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Warranty reserves SEC Schedule, 12-09, Reserve, Warranty [Member] Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Net current-period other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Stock Options and Cash-Based Stock Appreciation Rights Outstanding Share-Based Payment Arrangement, Option, Exercise Price Range, Beginning of Period [Abstract] United States United States UNITED STATES 5.00% Senior Notes 5.00% Senior Notes Due December 2029 [Member] 5.00% Senior Notes Due December 2029 Other assets Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Change in fair value of interest rate instruments, net of taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Assets Held-for-Sale Long-Lived Asset, Excluding Intangible Asset and Goodwill, Impairment and Disposal [Policy Text Block] Total minimum lease payments Lessee, Operating And Finance Lease, Liability, Payments, Due Lessee, Operating And Finance Lease, Liability, Payments, Due Schedule of Financial Information by Segment Segment Reporting [Table Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Impairment of assets held-for-sale Impairment of assets held-for-sale Impairment of Long-Lived Assets to be Disposed of Add back Series B preferred stock dividends Convertible Preferred Dividends, Net of Tax Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Pension adjustment, taxes Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax Senior Notes, Redemption, Period Two Debt Instrument, Redemption, Period Two [Member] Total loss on sale Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Schedule of Future Minimum Finance Lease Payments Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Range of Exercise Prices, upper range (in usd per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit Document Period End Date Document Period End Date Pension adjustment Other Comprehensive (Income) Loss, Defined Benefit Plan, before Reclassification Adjustment, after Tax Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Total current liabilities held-for-sale Current liabilities held-for-sale Disposal Group, Including Discontinued Operation, Liabilities, Current Beginning balance, Preferred Stock (in shares) Ending balance, Preferred Stock (in shares) Preferred Stock, Shares Outstanding Aggregate principal amount of bridge loan Debt Instrument, Face Amount Year 2 Lessee, Operating Lease, Liability, to be Paid, Year Two Term of loan Debt Instrument, Term Schedule of Depreciation And Amortization by Segment Segment Reporting, Reconciliation of Other Item by Segment to Consolidated [Table Text Block] Treasury stock, at cost; Treasury Stock, Common, Value Taiwan TAIWAN Sale of shares to noncontrolling interests Proceeds from Noncontrolling Interests Net-operating loss and credit carryforwards Deferred Tax Assets, Operating Loss Carryforwards Forfeited and Expired (in usd per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures And Expirations In Period, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures And Expirations In Period, Weighted Average Exercise Price Sweden SWEDEN Federal Income Tax Paid, Federal, after Refund Received Finance leases Finance Lease, Weighted Average Remaining Lease Term Total fair value of restricted stock vested Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Accumulated other comprehensive income (AOCI) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Operating lease current liabilities Operating Lease, Liability, Current Earnings Per Share Earnings Per Share [Text Block] Earnings Per Share [Abstract] Earnings Per Share [Abstract] Year 1 Lessee, Operating And Finance Lease Liability, Payments, Due Year One Lessee, Operating And Finance Lease Liability, Payments, Due Year One Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised Total Liabilities Liabilities Trading Symbol Trading Symbol Additions to property, plant & equipment Payments to Acquire Property, Plant, and Equipment Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Unrecognized Tax Benefits [Roll Forward] Accrued income taxes payable Disposal Group, Including Discontinued Operation, Accrued Income Tax Payable, Net, Current Disposal Group, Including Discontinued Operation, Accrued Income Tax Payable, Net, Current Accrued income taxes payable Accrued Income Taxes, Current Company Selected Measure Name Company Selected Measure Name Sale of Stock [Domain] Sale of Stock [Domain] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Fixed interest rate Derivative, Fixed Interest Rate Facility construction loan in Germany Construction Loan Due 2030 [Member] Construction Loan Due 2030 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] Preferred stock, accretion of redemption value, period Preferred Stock, Accretion Of Redemption Value, Period Preferred Stock, Accretion Of Redemption Value, Period Operating lease current liabilities Disposal Group, Including Discontinued Operation, Operating Lease, Liability, Current Disposal Group, Including Discontinued Operation, Operating Lease, Liability, Current Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Uncertain tax positions Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Schedule of Outstanding and Exercisable Stock Options Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] Credit Facility [Domain] Credit Facility [Domain] Cash Flows from Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Accounts payable Disposal Group, Including Discontinued Operation, Accounts Payable, Current Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration] Supplier Finance Program, Obligation, Statement of Financial Position [Extensible Enumeration] Non-U.S. income Income (Loss) from Continuing Operations before Income Taxes, Foreign Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] Discontinued Operation, Gain (Loss) on Disposal, Statement of Income or Comprehensive Income [Extensible Enumeration] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Estimated useful lives Property, Plant, and Equipment, Useful Life Year 2 Finance Lease, Liability, to be Paid, Year Two Disposal Group Name [Domain] Disposal Group Name [Domain] Line of Credit Facility [Table] Line of Credit Facility [Table] Dividends Dividends Series B redeemable convertible preferred stock, cumulative percentage Temporary Equity, Dividend Rate, Percentage Temporary Equity, Dividend Rate, Percentage Other Deferred Tax Assets, Other Year 4 Finance Lease, Liability, to be Paid, Year Four Deferred income taxes Deferred Income Taxes and Tax Credits Share-Based Payment Arrangement, Option, Exercise Price Range [Table] Share-Based Payment Arrangement, Option, Exercise Price Range [Table] Loss carryforwards Operating Loss Carryforwards Weighted Average Exercise Price (in usd per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Exercise Price Schedule of Current Assets and Current Liabilities Classified Held for Sale Disposal Groups, Including Discontinued Operations [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Less: amounts representing interest Finance Lease, Liability, Undiscounted Excess Amount Other operating net assets (liabilities) Increase (Decrease) in Other Operating Assets and Liabilities, Net Operating cash flows from operating leases Operating Lease, Payments Award Timing Predetermined Award Timing Predetermined [Flag] Total intrinsic value of stock options and cash-based stock appreciation rights, exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Total Income Tax Expense (Benefit) Effective Income Tax Rate Reconciliation, Percent Common stock equivalents (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Deferred income tax liabilities Deferred Tax Liabilities, Gross [Abstract] Debt facilities Long-Term Debt, Fair Value Accrued employee benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Depreciation Depreciation Plan Name [Domain] Plan Name [Domain] Accounts receivable Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Antidilutive Securities [Axis] Antidilutive Securities [Axis] Number of Rights Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward] Outstanding, beginning balance (in usd per share) Outstanding, ending balance (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Concentration Risk Type [Domain] Concentration Risk Type [Domain] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Change in deferred tax basis for noncontrolling interests Noncontrolling Interest, Deferred Tax Basis Adjustment Noncontrolling Interest, Deferred Tax Basis Adjustment Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Outstanding balance Long-Term Line of Credit Local Currency Tranche August 2026 Facility, Local Currency Tranche [Member] August 2026 Facility, Local Currency Tranche Expiration Date Trading Arrangement Expiration Date Foreign Current Foreign Tax Expense (Benefit) 2030 Long-Term Debt, Maturity, Year Four Present value of total lease liabilities Operating And Finance Lease, Liability Operating And Finance Lease, Liability State Current State and Local Tax Expense (Benefit) Total Equity Balance-beginning of period Balance-end of period Equity, Including Portion Attributable to Noncontrolling Interest Disposal Group, Including Discontinued Operations [Line Items] Disposal Group, Including Discontinued Operations [Line Items] Buildings and improvements Building and Building Improvements [Member] Exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Proceeds from issuance of common shares Proceeds from Issuance of Common Stock Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Security, Excluded EPS Calculation [Table] Vietnam VIET NAM Cash Flows from Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Entity Voluntary Filers Entity Voluntary Filers Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Segments [Domain] Segments [Domain] Interest rate cap Interest Rate Swap [Member] Property, Plant and Equipment Property, Plant, and Equipment [Policy Text Block] Debt Debt Disclosure [Text Block] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Goodwill, Fair Value Adjustment, Measurement Input, Discount Rate Goodwill, Fair Value Adjustment, Measurement Input, Discount Rate Goodwill, Fair Value Adjustment, Measurement Input, Discount Rate Income Tax Paid, by Individual Jurisdiction [Table] Income Tax Paid, by Individual Jurisdiction [Table] Operating lease liabilities Disposal Group, Including Discontinued Operation, Operating Lease, Liability, Noncurrent Disposal Group, Including Discontinued Operation, Operating Lease, Liability, Noncurrent PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Secured Debt Secured Debt [Member] Total Costs, Expenses, & Other Expense Segment cost of goods sold and operating expenses Costs and Expenses Thereafter Long-Term Debt, Maturity, after Year Five Finance leases Finance Lease, Weighted Average Discount Rate, Percent Interest rate on debt Debt Instrument, Interest Rate, Stated Percentage Total Coherent Corp. Shareholders' Equity Equity, Attributable to Parent Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Preferred stock deemed dividends ($000) Dividends, Preferred Stock, Paid-in-kind Assets Assets [Abstract] Research and development tax credit Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount Insider Trading Policies and Procedures [Line Items] Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Significant accounting policies. Other Accrued Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Accounts receivable, allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss, Current Performance Stock Units Performance Share Units Performance Shares [Member] Prepaid and other current assets Prepaid Expense and Other Assets, Current Total Deferred Deferred Income Tax Expense (Benefit) Private Placement Private Placement [Member] Total noncurrent liabilities held-for-sale Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Other Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items] Assets held-for-sale Effective Income Tax Rate Reconciliation, Long-Lived Assets To Be Disposed Of, Percent Effective Income Tax Rate Reconciliation, Long-Lived Assets To Be Disposed Of, Percent Total anti-dilutive shares (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Debt issuance costs, Term A Facility and Revolving Credit Facility Term Loan A And Revolving Credit Facility [Member] Term Loan A And Revolving Credit Facility Schedule of Carrying Amount of Goodwill Goodwill [Table Text Block] Auditor Location Auditor Location Entity Central Index Key Entity Central Index Key Less accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization 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] Taxes at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Long-Lived Asset, Held-for-Sale [Table] Long-Lived Asset, Held-for-Sale [Table] Ownership [Axis] Ownership [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Schedule of Components of Income Tax Expense (Benefit) Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Series B Convertible Preferred Stock Preferred Stock, Redeemable [Policy Text Block] Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Finance lease cost Finance Lease Costs [Abstract] Finance lease costs. Number of Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Basis spread on variable rate Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Variable Rate Variable Rate [Domain] Senior Notes, Redemption, Period One Debt Instrument, Redemption, Period One [Member] Total minimum lease payments Finance Lease, Liability, to be Paid AOCI Total Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Schedule of Geographic Information Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue [Table Text Block] Balance at Beginning of Year Balance at End of Year SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Finished goods Inventory, Finished Goods, Net of Reserves Unrecognized compensation cost, weighted-average period of recognition, years Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Commitments and Contingencies Commitments and Contingencies, Policy [Policy Text Block] Statement [Line Items] Statement [Line Items] Total Assets Assets Defined Benefit Plan [Table] Defined Benefit Plan [Table] Operating Leases Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] Interest expense Interest expense Interest Expense, Operating Schedule of Principal Items Comprising Deferred Income Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Interest rate swap/cap Deferred Tax Liabilities, Derivatives Operating Segments Operating Segments [Member] Goodwill Disposal Group, Including Discontinued Operation, Goodwill, Noncurrent Share-Based Compensation Share-Based Payment Arrangement [Text Block] Taxes on non U.S. earnings Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent PEO PEO [Member] 2028 Long-Term Debt, Maturity, Year Two Other liabilities Other Liabilities, Noncurrent June 2026 Credit Line June 2026 Credit Line [Member] June 2026 Credit Line Goodwill Balance-beginning of period Balance-end of period Goodwill Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Noncontrolling interest Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Amount Thereafter Finance Lease, Liability, to be Paid, after Year Five Uncertain tax positions Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Land and improvements Land and Land Improvements [Member] Retained Earnings Retained Earnings [Member] Operating lease liabilities Operating Lease, Liability, Noncurrent Outside basis differences Deferred Tax Liabilities, Undistributed Foreign Earnings Revolving Credit Facility Revolving Credit Facility [Member] Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Weighted Average Exercise Price [Abstract] Share based compensation arrangement by share based payment award equity instruments other than options weighted average exercise price roll forward. August 2026 Facility August 2026 Facility [Member] August 2026 Facility Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Beginning balance, Common Stock (in shares) Ending balance, Common Stock (in shares) Common Stock, Shares, Outstanding Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Award Timing Disclosures [Line Items] SOFR percentage of derivative Derivative, Basis Spread On Variable Rate, Trigger For Right To Receive Payment Derivative, Basis Spread On Variable Rate, Trigger For Right To Receive Payment Diluted Earnings (Loss) Per Share (in usd per share) Diluted earnings (loss) per common share (in usd per share) Earnings Per Share, Diluted Accrued compensation and benefits Increase (Decrease) in Employee Related Liabilities Depreciation Amortization of intangibles Intangible Asset, Finite-Lived, Amortization Expense Intangible Asset, Finite-Lived [Line Items] Intangible Asset, Finite-Lived [Line Items] Price protection period Sale of Stock, Price Protection Provision, Period Sale of Stock, Price Protection Period Ownership [Domain] Ownership [Domain] Proceeds from borrowings of revolving credit facilities Proceeds from Long-Term Lines of Credit Series B Convertible Preferred Stock (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Revenues Total Revenues Revenues Revenue from Contract with Customer, Excluding Assessed Tax Available credit under lines of credit Line of Credit Facility, Remaining Borrowing Capacity Tax over book accumulated depreciation Deferred Tax Liabilities, Property, Plant and Equipment Term A Loan Term A Loan Facility [Member] Term A loan facility. Total current assets held-for-sale Disposal Group, Including Discontinued Operation, Assets, Current Schedule of Components of Restructuring Charges and Payments and Other Deductions Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Purchases of short-term investments Payments to Acquire Short-Term Investments Acquired Plans Acquired Plans [Member] Acquired Plans Construction in progress Construction in Progress [Member] Term A Facility Term Loan A Credit Facility [Member] Term Loan A Credit Facility State income taxes-net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Exercise Price Range [Axis] Exercise Price Range [Axis] Warranty reserve Product Warranty Accrual, Current Schedule of Maturities of Long-Term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Other Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Percent Sale of Stock [Axis] Sale of Stock [Axis] Foreign Taxing Jurisdictions Foreign Income Tax Jurisdiction, Foreign [Member] Auditor Firm ID Auditor Firm ID Next five years Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years Schedule of Dividends Dividends Declared [Table Text Block] Foreign Income Tax Paid, Foreign, after Refund Received Schedule of Future Minimum Operating Lease Payments Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Issuance costs on sale of shares to noncontrolling interests Noncontrolling Interest, Issuance Costs On Sale Of Parent Equity Interest Noncontrolling Interest, Issuance Costs On Sale Of Parent Equity Interest Global intangible low-taxed income Effective Income Tax Rate Reconciliation, NCTI, Amount Restricted Share Awards and Cash-Based Restricted Share Unit Awards Restricted Share Awards And Restricted Share Unit Awards [Member] Restricted Share Awards Restricted Share Units And Cash Based Restricted Share Unit Awards 2031 Defined Benefit Plan, Expected Future Benefit Payment, Year Five Other Credit Facility Other Credit Facility [Member] Other Credit Facility Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Performance Share Unit Schedule of Nonvested Performance-Based Units Activity [Table Text Block] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common stock, shares issued (in shares) Common Stock, Shares, Issued Accumulated Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Accounts receivable Increase (Decrease) in Accounts Receivable Class of Stock [Line Items] Class of Stock [Line Items] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Restructuring accrual, current Restructuring Reserve, Current Deferred tax asset valuation allowance SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] Deferred income taxes Deferred Income Tax Liabilities, Net Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Contributions to profit sharing retirement plan Defined Contribution Plan, Cost Year 3 Lessee, Operating Lease, Liability, to be Paid, Year Three Termination Date Trading Arrangement Termination Date Noncontrolling Interest [Table] Noncontrolling Interest [Table] Subsequent Events [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Term B Loan Term B Loan Facility [Member] Term B loan facility. Assets Held-for-Sale and Sale of Businesses Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Taxes at statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Unrecognized tax benefits expected decrease during the next 12 months Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions Pension adjustment, net of taxes Pension adjustment, net of taxes Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Loss on sale of shares Effective Income Tax Rate Reconciliation, Effect Due To Gain (Loss) on Sale of Shares, Amount Effective Income Tax Rate Reconciliation, Effect Due To Gain (Loss) on Sale of Shares, Amount Interest and penalties accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Entity Public Float Entity Public Float Fair Value as of Grant Date Award Grant Date Fair Value Tax credit carryforwards Tax Credit Carryforward, Amount Noncontrolling interest Effective Income Tax Rate Reconciliation, Noncontrolling Interest Income (Loss), Percent Redemption price, percentage of principal amount Debt Instrument, Redemption Price, Percentage Number of entities classified as held-for-sale Number Of Held-For-Sale Entities Number Of Held-For-Sale Entities Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Mitsubishi Electric Corporation Mitsubishi Electric Corporation [Member] Mitsubishi Electric Corporation Goodwill [Table] Goodwill [Table] Increase (Decrease) in Temporary Equity [Roll Forward] Increase (Decrease) in Temporary Equity [Roll Forward] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Investment Credit Regulatory Income Taxes, Policy [Policy Text Block] Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Nature of Business and Summary of Significant Accounting Policies Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Tax on foreign unremitted earnings Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent Term B-3 Loans Term Loan B-3 Credit Facility [Member] Term Loan B-3 Credit Facility Series B-2 Preferred Stock Series B-2 Convertible Preferred Stock [Member] Series B-2 Convertible Preferred Stock Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Gross Carrying Amount Intangible Asset, Finite-Lived, before Accumulated Amortization Gain on sale of equity investment Equity Method Investment, Realized Gain (Loss) on Disposal Loss (earnings) from equity investments Income (Loss) from Equity Method Investments Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Noncontrolling Interests Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Amortization of right-of-use assets Finance Lease, Right-of-Use Asset, Amortization Series B-1 Preferred Stock Series B-1 Convertible Preferred Stock [Member] Series B-1 Convertible Preferred Stock Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Goodwill [Roll Forward] Goodwill [Roll Forward] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Trade Names Trade Names [Member] Series B redeemable convertible preferred stock, no par value, 5% cumulative; authorized - Beginning balance Ending balance Temporary Equity, Carrying Amount, Attributable to Parent Supplier financing program obligation Supplier Finance Program, Obligation Award Type [Domain] Award Type [Domain] Interest on lease liabilities Finance Lease, Interest Expense Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Expiration of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Redemption percentage Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One Restricted Share Awards and Cash-Based Restricted Share Unit Awards Restricted Share Awards And Restricted Share Units Awards [Member] Restricted share awards, restricted share units, and cash-based restricted share unit awards. Equity investment, ownership percentage Subsidiary, Ownership Percentage, Noncontrolling Owner Geographical [Axis] Geographical [Axis] Restricted cash Restricted cash, current Restricted Cash Contract liabilities Contract with Customer, Liability Research and development tax credit Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent Various Coherent Entities Various Coherent Entities [Member] Various Coherent Entities Segment profit Segment Income (Loss) Segment Income (Loss) Legal Entity [Axis] Legal Entity [Axis] Interest expense incurred Interest Expense, Debt Deduction from Reserves SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Weighted Average Exercise Price (in usd per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted Average Exercise Price Qualified domestic minimum top-up tax Effective Income Tax Rate Reconciliation, Qualified Domestic Minimum Top Up Tax, Amount Effective Income Tax Rate Reconciliation, Qualified Domestic Minimum Top Up Tax, Amount Outstanding, beginning balance (in usd per share) Outstanding, ending balance (in usd per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Weighted Average Exercise Price Payments Payments for Restructuring Cash, Cash Equivalents, and Restricted Cash at Beginning of Period Cash, Cash Equivalents, and Restricted Cash at End of Period Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Customer Lists Customer Lists [Member] Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Table] Non-NEOs Non-NEOs [Member] Reporting Unit [Domain] Reporting Unit [Domain] 2027 Defined Benefit Plan, Expected Future Benefit Payment, Year One 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Allowance for Expected Credit Losses Credit Loss, Financial Instrument [Policy Text Block] Schedule of Components of Debt Schedule of Debt [Table Text Block] Customer [Domain] Customer [Domain] Schedule of Components of Inventories Schedule of Inventory, Current [Table Text Block] Leases Lessee, Operating Leases [Text Block] 2027 Long-Term Debt, Maturity, Year One Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Contract liabilities included in other accrued liabilities Contract liabilities Contract with Customer, Liability, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Award Type [Axis] Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Restructuring and Related Activities [Abstract] Debt instrument conversion, trading days Debt Instrument, Convertible, Threshold Trading Days Restricted cash, non-current Restricted Cash, Noncurrent Share-based and deferred compensation activities Deferred Compensation Arrangement With Individual Allocated Share-Based Compensation Deferred compensation arrangement with individual allocated share based compensation expense (benefit). Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Employee Severance Severance Employee Severance [Member] Operating lease cost Operating Lease, Cost Shares issued (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Non-United States Non-US [Member] Noncontrolling Interest [Abstract] Current: Current Federal, State and Local, Tax Expense (Benefit) [Abstract] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Foreign currency translation Goodwill, Foreign Currency Translation, Gain (Loss) Total Liabilities, Mezzanine Equity and Shareholders' Equity Liabilities and Equity Employee Stock Option Share-Based Payment Arrangement, Option [Member] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table] Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Table] Noncontrolling interests (NCI) Equity, Attributable to Noncontrolling Interest Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Restructuring charges (recoveries) Restructuring costs Restructuring Charges Less: Impairment of assets held-for-sale Disposal Group, Including Discontinued Operation, Impaired Long-Lived Assets To Be Disposed Of Disposal Group, Including Discontinued Operation, Impaired Long-Lived Assets To Be Disposed Of Tabular List, Table Tabular List [Table Text Block] Restricted cash, non-current Restricted Cash and Cash Equivalent, Noncurrent SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Purchases of intangible assets Payments to Acquire Intangible Assets 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three Other expense (income), net Other income, net Other Operating Income (Expense), Net Name Awards Close in Time to MNPI Disclosures, Individual Name Preferred Stock Dividends Series B Convertible Preferred Stock, Preferred Stock Dividends [Member] Series B Convertible Preferred Stock, Dividends 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] Aggregate intrinsic value of stock options and cash-based stock appreciation rights, outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Foreign Currency Translation Adjustments Attributable to Noncontrolling Interests Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest Number of defined benefit plans Defined Contribution Plan, Number Of Benefit Plans Defined Contribution Plan, Number Of Benefit Plans Other Deferred Tax Liabilities, Lease, Liability Deferred Tax Liabilities, Lease, Liability Deferred income tax assets Deferred Tax Assets, Gross [Abstract] Long-Lived Asset, Class [Domain] Long-Lived Asset, Class [Domain] Price per share of shares issued and sold (in usd per share) Sale of Stock, Price Per Share Deduct Series B dividends and deemed dividends Preferred Stock Dividends and Other Adjustments Contractual lock-up period Sale of Stock, Contractual Lock-Up Period Sale of Stock, Contractual Lock-Up Period Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Tax on foreign unremitted earnings Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Adjustment to Compensation: Adjustment to Compensation [Axis] Forfeited and Expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations Amounts reclassified from AOCI Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Prepaid and refundable income taxes Prepaid Taxes Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] $36.90 - $49.90 Fifth Range [Member] Fifth range. Restructuring Plans Restructuring and Related Activities Disclosure [Text Block] Credit Facility [Axis] Credit Facility [Axis] SCHEDULE II SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Year 5 Finance Lease, Liability, to be Paid, Year Five Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] U.S. loss Income (Loss) from Continuing Operations before Income Taxes, Domestic Intangible Asset, Indefinite-Lived, Class [Axis] Intangible Asset, Indefinite-Lived, Class [Axis] Name Trading Arrangement, Individual Name Share based compensation expense attributable to non-vested shares Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount Cash and cash equivalents Cash and Cash Equivalent Raw materials Inventory, Raw Materials, Net of Reserves Company Selected Measure Amount Company Selected Measure Amount Aerospace and Defense Business Aerospace And Defense Business [Member] Aerospace And Defense Business Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Stock Options and Cash-Based Stock Appreciation Rights Exercisable Share-Based Payment Arrangement, Option, Exercise Price Range, End of Period [Abstract] Significant Accounting Policies [Table] Significant Accounting Policies [Table] Significant accounting policies. Increase (decrease) in interest expense Interest Expense, Long-Term Debt, Increase (Decrease) Gross unrecognized tax benefits that would impact effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate 2031 Long-Term Debt, Maturity, Year Five Operating leases Operating Lease, Weighted Average Remaining Lease Term Non-PEO NEO Non-PEO NEO [Member] Unrealized losses (gains) on foreign currency remeasurements and transactions Gain (Loss), Foreign Currency Transaction, before Tax Effect of dilutive securities: Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Customer Concentration Risk Customer Concentration Risk [Member] Cost of goods sold Cost of Product and Service Sold SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Technology Technology-Based Intangible Assets [Member] Award Timing Method Award Timing Method [Text Block] Net increase (decrease) in cash, cash equivalents, and restricted cash 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] Total deferred income tax assets Deferred Tax Assets, Net of Valuation Allowance Estimated associated withholding tax related to previously taxed earnings Withholding Tax Associated With Previously Taxed Earnings Withholding tax associated with previously taxed earnings. Asset write-offs and other Restructuring Reserve, Asset Write-Offs And Other Adjustments Restructuring Reserve, Asset Write-Offs And Other Adjustments Net Earnings (Loss) Attributable to Coherent Corp. Net earnings (loss) attributable to Coherent Corp. Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] 2030 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Restatement Determination Date: Restatement Determination Date [Axis] Schedule of AOCI, Net of Tax Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Other Entities Other Entities [Member] Other Entities Equity per share price (in usd per share) Temporary Equity, Price Per Share Temporary Equity, Price Per Share Exercisable (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Other reclassifications Goodwill, Transfers Leases Lessee, Leases [Policy Text Block] Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items] Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items] Debt instrument conversion, consecutive trading days Debt Instrument, Convertible, Threshold Consecutive Trading Days Realized gain on derivative instruments Gain on Derivative Instruments, Pretax Stock compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Total supplier invoices paid Supplier Finance Program, Obligation, Settlement Mezzanine Equity Temporary Equity [Abstract] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Denominator Weighted Average Number of Shares Outstanding, Diluted [Abstract] Statistical Measurement [Domain] Statistical Measurement [Domain] Gain on sale of shares Effective Income Tax Rate Reconciliation, Gain on Sale of Shares, Amount Effective Income Tax Rate Reconciliation, Gain on Sale of Shares, Amount Document Fiscal Year Focus Document Fiscal Year Focus Number of Units Number of Units Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Customer [Axis] Customer [Axis] Common stock, no par value; authorized - 300,000,000 shares; Common Stock, Value, Issued Year 1 Lessee, Operating Lease, Liability, to be Paid, Year One Payments in satisfaction of employees’ minimum tax obligations Payment, Tax Withholding, Share-Based Payment Arrangement Settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Award grants performance period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Requisite Service Period Line of credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Tax Jurisdiction of Domicile [Extensible Enumeration] Tax Jurisdiction of Domicile [Extensible Enumeration] Valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Loss carryforwards, indefinite Operating Loss Carryforwards, Indefinite Amount Operating loss carry forwards indefinite amount. Schedule of Reconciliation of Income Tax Expense Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Other accrued liabilities Other Cost And Expense Accrual, Current Other Cost And Expense Accrual, Current Amendment Flag Amendment Flag Goodwill [Line Items] Goodwill [Line Items] Proceeds from sale of equity investment Proceeds from Sale of Equity Method Investments Non-cash restructuring and impairment charges Restructuring Costs and Asset Impairment Charges Current Liabilities Liabilities, Current [Abstract] Increase (decrease) in taxes resulting from: Effective Income Tax Rate Reconciliation, Increase (Decrease), Percent [Abstract] Effective Income Tax Rate Reconciliation, Increase (Decrease), Percent Financing cash flows from finance leases Finance Lease, Principal Payments Total finance lease cost Finance Lease, Cost Finance lease cost. Year 2 Lessee, Operating And Finance Lease Liability, Payments, Due Year Two Lessee, Operating And Finance Lease Liability, Payments, Due Year Two Performance adjustments (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Performance Adjustments In Period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Performance Adjustments In Period Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group, Held-for-Sale, Not Discontinued Operations Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Coherent acquisition Stock Issued During Period, Value, Acquisitions Income Tax Paid, by Individual Jurisdiction [Line Items] Income Tax Paid, by Individual Jurisdiction [Line Items] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] 2029 Defined Benefit Plan, Expected Future Benefit Payment, Year Three Performance Share Awards and Cash-Based Performance Share Unit Awards Performance Share Units And Performance Share Unit Awards [Member] Performance Share Units And Cash Based Performance Share Units Property, Plant, and Equipment [Abstract] Property, Plant, and Equipment [Abstract] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Less: Impairment of assets held for sale Disposal Group, Including Discontinued Operation, Impaired Long-Lived Assets To Be Disposed Of, Current Disposal Group, Including Discontinued Operation, Impaired Long-Lived Assets To Be Disposed Of, Current Foreign currency translation adjustments Share of foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Notional amount Derivative, Notional Amount Weighted average shares, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Loss on sale of shares Effective Income Tax Rate Reconciliation, Effect Due To Gain (Loss) on Sale of Shares, Percent Effective Income Tax Rate Reconciliation, Effect Due To Gain (Loss) on Sale of Shares, Percent Year 4 Lessee, Operating Lease, Liability, to be Paid, Year Four June 2026 Facility June 2026 Facility [Member] June 2026 Facility Federal research and development credits Research Tax Credit Carryforward [Member] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Schedule of Net Income Taxes Paid Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] 2025 Plan 2025 Restructuring Plan [Member] 2025 Restructuring Plan ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Local Currency Benchmark Rate Local Currency Benchmark Rate [Member] Local Currency Benchmark Rate Operating loss carryforwards: Operating Loss Carryforwards [Abstract] Operating Loss Carryforwards 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 Class of Stock [Axis] Class of Stock [Axis] Debt issuance costs Debt Issuance Costs, Gross Basic earnings (loss) available to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Revenue from Contract with Customer Benchmark Revenue from Contract with Customer Benchmark [Member] Cash dividends paid Payments of Ordinary Dividends Sublease income Sublease Income Accumulated Amortization Intangible Asset, Finite-Lived, Accumulated Amortization R&D capitalization Deferred Tax Asset, In-Process Research and Development Inventories Disposal Group, Including Discontinued Operation, Inventory, Current Aggregate amount of credit facility Line of Credit Facility, Maximum Borrowing Capacity Current portion of long-term debt Current portion of long-term debt Long-Term Debt, Current Maturities Other Other Restructuring [Member] 2025 Incremental Term A Loans Senior Secured Incremental Term A Credit Facility [Member] Senior Secured Incremental Term A Credit Facility Amortization period of sales commissions expensed Assurance Type Limited Product Warranty, Period Assurance-type limited product warranty period. Recently Issued Financial Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Earnings per Share Earnings Per Share, Policy [Policy Text Block] Additions to property, plant & equipment included in accounts payable Capital Expenditures Incurred but Not yet Paid Contract liabilities Increase (Decrease) in Contract with Customer, Liability NCI Noncontrolling Interest [Member] Loss on disposals of property, plant & equipment Gain (Loss) on Disposition of Property Plant Equipment Amortization of debt issuance costs Amortization of Debt Issuance Costs Unsecured Debt Unsecured Debt [Member] Schedule of Other Accrued Liabilities Schedule of Accrued Liabilities [Table Text Block] Noncontrolling Interests Noncontrolling Interest Disclosure [Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Total debt Long-Term Debt Property, Plant and Equipment Property, Plant, and Equipment [Text Block] Global intangible low-taxed income Effective Income Tax Rate Reconciliation, NCTI, Percent Increase (decrease) in cash from changes in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Forfeitures and Expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period Net cash 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] Beginning balance Ending balance Unrecognized Tax Benefits Equity and Redeemable Preferred Stock Equity [Text Block] Beginning balance (in shares) Ending balance (in shares) Redeemable convertible preferred stock shares outstanding (in shares) Temporary Equity, Shares Outstanding Costs, Expenses, and Other Expense (Income) Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Reclass related to noncontrolling interests Noncontrolling Interest, Period Increase (Decrease) U.S. Dollar Tranche August 2026 Facility, U.S. Dollar Tranche [Member] August 2026 Facility, U.S. Dollar Tranche ROU liability Deferred Tax Liabilities, Outside Basis Differences Deferred Tax Liabilities, Outside Basis Differences Prepaid and refundable income taxes Disposal Group, Including Discontinued Operation, Prepaid Taxes Disposal Group, Including Discontinued Operation, Prepaid Taxes Total fair value of restricted stock grant Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Grant In Period, Fair Value Total fair value of restricted and performance shares granted during the period. Common stock authorized for issuance under the plan (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Major Customer Major Customer [Member] Major Customer Schedule of Property, Plant and Equipment Property, Plant, and Equipment [Table Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Name Outstanding Recovery, Individual Name Datacenter & Communications Datacenter And Communications Segment [Member] Datacenter And Communications Segment Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] State Deferred State and Local Income Tax Expense (Benefit) Assets obtained in exchange for lease liabilities Assets Obtained in Exchange for Lease Liabilities [Abstract] Assets Obtained in Exchange for Lease Liabilities Commitments, 2027 Purchase Obligation, to be Paid, Year One Exercisable (in usd per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Exercisable, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Exercisable, Weighted Average Exercise Price Geographical [Domain] Geographical [Domain] Intangible Asset, Excluding Goodwill, Indefinite-Lived Intangible Asset, Excluding Goodwill, Indefinite-Lived 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] Numerator Weighted Average Number of Shares Outstanding, Basic [Abstract] Employer matching contribution, percent of employees' earnings Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Effect of dilutive securities: Weighted Average Number of Shares Outstanding, Diluted, Adjustment [Abstract] Weighted Average Remaining Contractual Term Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted-Average Remaining Contractual Term Major Customer, One Major Customer, One [Member] Major Customer, One Dividends paid (in usd per share) Preferred Stock, Dividends, Per Share, Cash Paid Intangible Asset, Finite-Lived, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration] Intangible Asset, Finite-Lived, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration] Non-Cash Investing and Financing Activities: Noncash Investing and Financing Items [Abstract] Proceeds from the sale of business, net of fees Proceeds from Divestiture of Businesses, Net of Cash Divested Non-controlling ownership interest percentage Subsidiary, Ownership Percentage, Parent Defined Benefit Pension Plan Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Debt, gross Total Total Long-Term Debt, Gross Book over tax accumulated depreciation Deferred Tax Assets, Property, Plant and Equipment Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted weighted average common shares (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 Underlying Security Market Price Change Underlying Security Market Price Change, Percent Industrial Industrial Segment [Member] Industrial Segment Proceeds from borrowings of other credit facilities Proceeds from Lines of Credit Property, plant & equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Range of Exercise Prices, lower range (in usd per share) Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit Cash paid for amounts included in the measurement of lease liabilities Cash Paid For Amounts Included In Measurement Of Lease Liabilities [Abstract] Cash paid for amounts included in the measurement of lease liabilities. Number of Shares or Rights (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable Less: amounts representing interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Stock compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent Tax credit carryforwards, indefinite Tax Credit Carryforward, Indefinite Amount Tax credit carry forwards indefinite amount. Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Issuance costs for sale of shares Stock Issued During Period, Issuance Costs Stock Issued During Period, Issuance Costs Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Schedule of Noncontrolling Interests Schedule Of Noncontrolling Interests [Table Text Block] Schedule Of Noncontrolling Interests Restricted cash, current Restricted Cash, Current Federal Deferred Federal Income Tax Expense (Benefit) Treasury Stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Indefinite-Lived, Class [Domain] Intangible Asset, Indefinite-Lived, Class [Domain] Total minimum lease payments Lessee, Operating Lease, Liability, to be Paid Inventory capitalization Deferred Tax Assets, Inventory Nonvested, beginning balance (in usd per share) Nonvested, 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] Employer matching contribution, percent of employee contribution Defined Contribution Plan, Employer Matching Contribution, Percent of Match Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Payments on borrowings under revolving credit facilities Repayments of Long-Term Lines of Credit Exercise Price Range [Domain] Exercise Price Range [Domain] Conversion of series A preferred stock (in shares) Conversion of Series B preferred stock (in shares) Temporary Equity, Stock Issued During Period, Shares, Conversion Of Convertible Securities Temporary Equity, Stock Issued During Period, Shares, Conversion Of Convertible Securities Reconciliation of Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract] Liquidity amount triggering springing maturity date Line Of Credit Facility, Liquidity Threshold Triggering Maturity Line Of Credit Facility, Liquidity Threshold Triggering Maturity Exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercisable Share based compensation arrangement by share based payment award equity instruments other than options exercisable. Schedule of Reconciliation of Basic and Diluted Earnings (Loss) Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Restructuring Costs Associated with Exit or Disposal Activities or Restructurings, Policy [Policy Text Block] Year 3 Lessee, Operating And Finance Lease Liability, Payments, Due Year Three Lessee, Operating And Finance Lease Liability, Payments, Due Year Three Debt Disclosure [Abstract] Debt Disclosure [Abstract] Segment and Geographic Reporting Segment Reporting [Text Block] Minimum Minimum [Member] Auditor Name Auditor Name Schedule of Disaggregated Revenue Disaggregation of Revenue [Table Text Block] Product Division Based in Munich, Germany Munich, Germany Based Product Division [Member] Munich, Germany Based Product Division Location, Statement of Income, Balance [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] 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] Enacted changes in tax laws or rates Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Employer matching contribution, net of forfeitures Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Common stock, shares authorized (in shares) Common Stock, Shares Authorized Series B redeemable convertible preferred stock redemption value Temporary Equity, Redemption Value Temporary Equity, Redemption Value Estimated useful lives of finite-lived intangible assets Amortization period of intangible assets Intangible Asset, Finite-Lived, Useful Life Stock Options and Cash-Based Stock Appreciation Rights Stock Option And Stock Appreciation Rights [Member] Stock option and stock appreciation rights. Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Shares issued and sold (in shares) Sale of Stock, Number of Shares Issued in Transaction German Plan German Plan [Member] German Plan Intangible assets Deferred Tax Liabilities, Intangible Assets Schedule of Fair Value and Carrying Value of Debt Facilities Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Exercise Price Award Exercise Price Restructuring Cost [Table] Restructuring Cost [Table] Segment Reporting [Line Items] Segment Reporting [Line Items] Long-Lived Asset, Held-for-Sale [Line Items] Long-Lived Asset, Held-for-Sale [Line Items] 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] Thereafter Lessee, Operating And Finance Lease, Liability, Payments, Due After Year Five Lessee, Operating And Finance Lease, Liability, Payments, Due After Year Five Europe Europe [Member] Employee Benefit Plans Compensation and Employee Benefit Plans [Text Block] Income taxes Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable Effect of exchange rate changes on cash, cash equivalents, and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Long-Lived Asset Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Long-Lived Asset [Table Text Block] Supply Chain Financing Arrangements Supply Chain Financing Arrangements, Policy [Policy Text Block] Supply Chain Financing Arrangements, Policy Assets Held-For-Sale SEC Schedule, 12-09, Valuation Allowances And Reserves, Long-Lived Assets To Be Disposed Of SEC Schedule, 12-09, Valuation Allowances And Reserves, Long-Lived Assets To Be Disposed Of Debt Issuance costs and discount, Senior Notes Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Total Operating And Finance Lease, Liability, Payment, Due [Abstract] Operating And Finance Lease, Liability, Payment, Due Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Restructuring accrual Beginning Balance Ending Balance Restructuring Reserve Equity Component [Domain] Equity Component [Domain] Proceeds from common stock and preferred stock options exercised in full Sale of Stock, Consideration Received on Transaction Adoption Date Trading Arrangement Adoption Date Inventories Inventory, Policy [Policy Text Block] Consideration for sale of business Disposal Group, Including Discontinued Operation, Consideration Counterparty Name [Domain] Counterparty Name [Domain] Restructuring Type [Axis] Restructuring Type [Axis] Intangible assets Disposal Group, Including Discontinued Operation, Intangible Assets, Noncurrent Estimated AMIC credit Investment Tax Credit Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Present value of total lease liabilities Operating Lease, Liability Equity issuance costs Payments of Stock Issuance Costs Outstanding, beginning balance (in shares) Outstanding, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Present value of total lease liabilities Finance Lease, Liability Other financing activities Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Selling, general and administrative Selling, General and Administrative Expense U.S. branch income Effective Income Tax Rate Reconciliation, Domestic Income, Amount Effective Income Tax Rate Reconciliation, Domestic Income, Amount 2028 Defined Benefit Plan, Expected Future Benefit Payment, Year Two Prepaid and other current assets Disposal Group, Including Discontinued Operation, Prepaid and Other Assets, Current Type of Restructuring [Domain] Type of Restructuring [Domain] Number Of Term Loans Number Of Term Loans Number Of Term Loans Letter of Credit Letter of Credit [Member] Forfeited and Expired (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] Weighted-average remaining lease term (in years) Weighted Average Remaining Lease Term [Abstract] Weighted-average remaining lease term. Performance adjustments (in usd per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Performance Adjustments in Period, Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Performance Adjustments in Period, Weighted Average Grant Date Fair Value RSUs Restricted Stock Units (RSUs) [Member] Schedule of Potential Shares Excluded from Calculation of Diluted Net Loss Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Research and manufacturing incentive deductions and credits Effective Income Tax Reconciliation, Deductions And Tax Credits, Amount Income tax reconciliation deductions and credits. All Adjustments to Compensation All Adjustments to Compensation [Member] Corporate Segment Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Property, plant & equipment, net Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment, Noncurrent Income Taxes Income Tax, Policy [Policy Text Block] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Preferred stock, accretion period Preferred Stock, Accretion Period Preferred Stock, Accretion Period Income Statement [Abstract] Income Statement [Abstract] Shareholders' Equity Equity, Attributable to Parent [Abstract] Document Transition Report Document Transition Report Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration] Restructuring Plan [Domain] Restructuring Plan [Domain] Deferred income taxes Deferred Income Tax Assets, Net ROU asset Deferred Tax Asset, Lease, Right-Of-Use Asset Deferred Tax Asset, Lease, Right-Of-Use Asset Inter-segment revenues Intersegment Eliminations [Member] Cash-Based Stock Appreciation Rights Stock Appreciation Rights (SARs) [Member] Schedule of Gross Carrying Amount and Accumulated Amortization of Intangible Assets Other Than Goodwill Intangible Asset, Finite-Lived [Table Text Block] Deemed Dividends Series B Convertible Preferred Stock, Deemed Dividends [Member] Series B Convertible Preferred Stock, Deemed Dividends Exercised (in usd per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Exercises In Period, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Non-Option Equity Instruments, Exercises In Period, Weighted Average Exercise Price Cash-Based Restricted Share Units Cash Based Restricted Stock Units [Member] Cash-based restricted stock units. City Area Code City Area Code Credit Agreement Credit Agreement [Member] Credit Agreement Subsequent Events Subsequent Events [Text Block] Name Forgone Recovery, Individual Name $35.39 - $36.89 Fourth Range [Member] Fourth range. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Weighted Average Grant Date  Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Entity [Domain] Entity [Domain] Effective Income Tax Rate Reconciliation [Line Items] Effective Income Tax Rate Reconciliation [Line Items] Share-Based Compensation Share-Based Payment Arrangement [Policy Text Block] Conversion of Series A and B preferred stock to common stock Conversion of Stock, Amount Converted Rest of World Other Countries [Member] Other Countries Sale of shares net of issuance costs (in shares) Stock Issued During Period, Shares, New Issues Other Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount Share based compensation expense Share-based compensation Share-Based Payment Arrangement, Expense Measurement Basis [Axis] Measurement Basis [Axis] Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Cash, Cash Equivalents, and Restricted Cash Cash and Cash Equivalents, Policy [Policy Text Block] Dividends Temporary Equity, Accretion of Dividends Other foreign jurisdictions Income Tax Jurisdiction, Foreign, Other [Member] Reporting Unit [Axis] Reporting Unit [Axis] 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 Debt extinguishment costs expensed Extinguishment Of Debt, Expense Amount Extinguishment Of Debt, Expense Amount Revenue recognized related to customer payments Contract with Customer, Liability, Revenue Recognized Subsequent Event Type [Domain] Subsequent Event Type [Domain] Payables and Accruals [Abstract] Forfeited (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 Charged to Expense SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Debt issuance costs Payments of Debt Issuance Costs Notional interest Effective Income Tax Rate Reconciliation, Notional Interest, Amount Effective Income Tax Rate Reconciliation, Notional Interest, Amount 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 Other accrued liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Current Change in fair value of interest rate instruments, taxes Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Research and development Research and Development Expense Adjustments to reconcile net earnings (loss) to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] 2029 Long-Term Debt, Maturity, Year Three Property, plant and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Cash Flows from Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Backlog and Other Backlog And Other Intangible Assets [Member] Backlog And Other Intangible Assets Other Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Senior Notes, Redemption, Period Three Debt Instrument, Redemption, Period Three [Member] Major Customer, Two Major Customer, Two [Member] Major Customer, Two Withholding taxes Effective Income Tax Rate Reconciliation, Withholding Taxes, Percent Effective Income Tax Rate Reconciliation, Withholding Taxes, Percent State Income Tax Paid, State and Local, after Refund Received GILTI and FDII Effective Income Tax Rate Reconciliation, GILTI And FDII, Amount Effective Income tax reconciliation global intangible low tax income and foreign derived intangible income. Number of Shares or Rights (in shares) Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding Financial Instruments [Domain] Financial Instruments [Domain] 2023 Plan 2023 Restructuring Plan [Member] 2023 Restructuring Plan Interest and penalties recognized within income tax expense Income Tax Examination, Penalties And Interest Expense (Benefit) Income tax examination penalties and interest expense benefit. Derivative asset Derivative Asset Inventories Inventory Disclosure [Text Block] Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] $18.07 - $24.34 Second Range [Member] Second range. Goodwill and Other Intangible Assets Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Fair Value Estimate of Fair Value Measurement [Member] Revenue from Contracts with Customers Revenue from Contract with Customer [Text Block] Sale of shares of noncontrolling interests, net of issuance costs of $31,840 and taxes of $127,389 Stock Issued During Period, Value, New Issues Schedule of Components of Earnings (Losses) Before Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Proceeds from exercises of stock options and purchases of stock under employee stock purchase plan Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised State Income Tax Jurisdiction, Domestic State and Local [Member] Preferred Stock Preferred Stock [Member] Impact of income tax holiday on diluted earnings per share (in usd per share) Effect Of Income Tax Holiday On Earnings Per Share, Diluted Effect Of Income Tax Holiday On Earnings Per Share, Diluted Other investing activities Payment for (Proceeds from) Other Investing Activity Inventories Increase (Decrease) in Inventories Operating leases Operating Lease, Weighted Average Discount Rate, Percent Segment Reporting [Table] Segment Reporting [Table] Shares available to be issued (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Materials Materials Segment [Member] Materials Segment Percentage of employee payroll deductions authorized Share-Based Compensation Arrangement by Share-Based Payment Award, Maximum Employee Subscription Rate Schedule of Lease Costs Lease, Cost [Table Text Block] Assets held-for-sale Effective Income Tax Rate Reconciliation, Long-Lived Assets To Be Disposed Of, Amount Effective Income Tax Rate Reconciliation, Long-Lived Assets To Be Disposed Of, Amount Conversion of Series A preferred stock Temporary Equity, Stock Issued During Period, Value, Conversion Of Convertible Securities Temporary Equity, Stock Issued During Period, Value, Conversion Of Convertible Securities 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] Current Fiscal Year End Date Current Fiscal Year End Date Gain on sale of business Gain on sale of business Gain (Loss) on Disposition of Business Commitments, thereafter Purchase Obligation, To Be Paid, After Year One Purchase Obligation, To Be Paid, After Year One Asset Write-Offs Asset Write-Offs [Member] Asset Write-Offs Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Taxes on sale of shares to noncontrolling interests Noncontrolling Interest, Sale Of Parent Equity Interest, Tax Noncontrolling Interest, Sale Of Parent Equity Interest, Tax Long-Lived Assets Long-Lived Asset, Excluding Financial Instrument, Customer Relationship, Mortgage Servicing Right, Deferred Policy Acquisition Cost, and Deferred Tax Asset, Amount Year 5 Lessee, Operating And Finance Lease Liability, Payments, Due Year Five Lessee, Operating And Finance Lease Liability, Payments, Due Year Five Other liabilities Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] 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 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] Dividends per share to preferred shareholders (in usd per share) Preferred Stock, Dividends Per Share, Declared Measure: Measure [Axis] Allowance for doubtful accounts SEC Schedule, 12-09, Allowance, Credit Loss [Member] Treasury stock (in shares) Beginning balance, Treasury Stock, (in shares) Ending balance, Treasury Stock (in shares) Treasury Stock, Common, Shares Schedule of Estimated Future Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Realized loss on derivative instruments Loss on Derivative Instruments, Pretax Common stock , conversion, if volume weighted average price, percentage exceeds applicable conversion price Common Stock, Volume-Weighted Average Price, Percentage Greater Than Applicable Conversion Price Common Stock, Volume-Weighted Average Price, Percentage Greater Than Applicable Conversion Price Equity Components [Axis] Equity Components [Axis] Cash paid for income taxes Cash paid for income taxes Income Tax Paid, after Refund Received Valuation allowances Deferred Tax Assets, Valuation Allowance Common Class A Common Class A [Member] Sale of stock, value of shares issued Proceeds from Issuance of Common Limited Partners Units Entity Interactive Data Current Entity Interactive Data Current Variable Rate Variable Rate [Axis] Net Loss Attributable to Noncontrolling Interests Comprehensive Loss Attributable to Noncontrolling Interests Net Income (Loss) Attributable to Noncontrolling Interest Entity Small Business Entity Small Business Comprehensive Income (Loss) Attributable to Coherent Corp. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Germany GERMANY Effective Income Tax Rate Reconciliation [Table] Effective Income Tax Rate Reconciliation [Table] Restructuring accrual, noncurrent Restructuring Reserve, Noncurrent MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other assets Other Assets, Noncurrent Year 3 Finance Lease, Liability, to be Paid, Year Three Document Type Document Type Weighted-average discount rate Weighted Average Discount Rate [Abstract] Weighted-average discount rate. Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Aggregate intrinsic value of stock options and cash-based stock appreciation rights, exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Subsequent Event [Line Items] Subsequent Event [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Contract liabilities included within other liabilities Contract with Customer, Liability, Noncurrent Mandatory preferred convertible shares authorized (in shares) Temporary Equity, Shares Authorized Net deferred income taxes Deferred Tax Liabilities, Gross Deferred income taxes Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities Amortization Amortization of Other Deferred Charges Increases in current year tax positions Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Earnings (Loss) Before Income Taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Switzerland SWITZERLAND Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Property, plant and equipment, gross Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Common stock equivalents Series B Convertible Preferred Stock [Member] Series B Convertible Preferred Stock Income Tax Contingency [Table] Income Tax Contingency [Table] Equity, Attributable to Noncontrolling Interest [Roll Forward] Equity, Attributable to Noncontrolling Interest [Roll Forward] Machinery and equipment Machinery and Equipment [Member] Executive Category: Executive Category [Axis] China CHINA Other Effective Income Tax Rate Reconciliation, Cross-Border, Other, Percent Schedule of Restricted Share Unit and Cash-Based Restricted Share Unit Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Business Combinations Business Combination [Policy Text Block] Counterparty Name [Axis] Counterparty Name [Axis] Liabilities, Mezzanine Equity and Shareholders' Equity Liabilities and Equity [Abstract] Australia AUSTRALIA Inventories Total inventories Inventory, Net Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Stock issued (in shares) Temporary Equity, Issued Temporary Equity, Issued Number Of Term Loans Repaid Number Of Term Loans, Repaid Number Of Term Loans, Repaid Supplemental Information Supplemental Cash Flow Information [Abstract] Share-based compensation expense Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-Based Compensation Cost PEO Name PEO Name Pension liability Pension And Other Postretirement Defined Benefit Plans, Underfunded Pension Liability Pension and other postretirement defined benefit plans underfunded pension liability. Series B redeemable convertible preferred stock, shares issued (in shares) Convertible preferred stock, shares issued (in shares) Temporary Equity, Shares Issued Interest Rate Instruments Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Long-Lived Asset, Class [Axis] Long-Lived Asset, Class [Axis] Qualified domestic minimum top-up tax Effective Income Tax Rate Reconciliation, Qualified Domestic Minimum Top Up Tax, Percent Effective Income Tax Rate Reconciliation, Qualified Domestic Minimum Top Up Tax, Percent Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number GILTI and FDII Effective Income Tax Rate Reconciliation, GILTI And FDII, Percent Effective income tax rate reconciliation global intangible low tax income and foreign derived intangible income. Exercised (in usd per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Networking Networking Segment [Member] Networking Segment Less: Dividends on Preferred Stock Preferred stock dividends ($000) Preferred Stock Dividends, Income Statement Impact Accounts payable Increase (Decrease) in Accounts Payable Other accrued liabilities Other accrued liabilities Other Accrued Liabilities, Current 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] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Restricted cash, current Restricted Cash and Cash Equivalent, Current 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] Comprehensive Income (Loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Debt Instrument [Axis] Debt Instrument [Axis] Subsequent Event [Table] Subsequent Event [Table] Share-based compensation expense Share-Based Payment Arrangement, Noncash Expense Weighted Average Remaining Contractual Term Share-Based Payment Arrangement, Option, Exercise Price Range, Exercisable, Weighted-Average Remaining Contractual Term Total lease cost Lease, Cost Percentage of fair market value of common stock to purchase shares Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent Disposal Group Name [Axis] Disposal Group Name [Axis] Conversion of Series A preferred stock (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Employee Stock Purchase Plan Employee Stock [Member] Transaction related costs Disposal Group, Including Discontinued Operation, Transaction-Related Cost, Expense Disposal Group, Including Discontinued Operation, Transaction-Related Cost, Expense Basic Earnings (Loss) Per Share (in usd per share) Basic earnings (loss) per common share (in usd per share) Earnings Per Share, Basic Research and manufacturing incentive deductions and credits Effective Income Tax Rate Reconciliation, Deductions And Tax Credits, Percent Effective income tax rate reconciliation deductions and credits. Total Current Assets Assets, Current Insider Trading Arrangements [Line Items] Long-term debt Long-term debt, less current portion Long-Term Debt, Excluding Current Maturities Valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Tax credit carryforwards: Tax Cedit Carryforwards [Abstract] Tax Cedit Carryforwards Document Annual Report Document Annual Report Accounts receivable - less allowance for doubtful accounts Accounts Receivable, after Allowance for Credit Loss, Current Hong Kong: HONG KONG 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] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover page. Cover [Abstract] United Kingdom UNITED KINGDOM Proceeds from borrowing of credit facility Proceeds from Issuance of Other Long-Term Debt Concentration risk percentage Concentration Risk, Percentage Foreign Line of Credit Foreign Line of Credit [Member] Equity Awards Adjustments Equity Awards Adjustments [Member] Total noncurrent assets held-for-sale Disposal Group, Including Discontinued Operation, Assets, Noncurrent Acceleration of Depreciation, Write-Off of Property and Equipment, and Site Move Costs Acceleration Of Depreciation, Write-Off Of Property And Equipment, And Site Move Costs [Member] Acceleration Of Depreciation, Write-Off Of Property And Equipment, And Site Move Costs Lasers Reporting Unit Lasers Reporting Unit [Member] Lasers Reporting Unit Corporate and centralized function costs Corporate And Centralized Function Costs Corporate And Centralized Function Costs Intangibles Intangible Assets, Finite-Lived, Policy [Policy Text Block] Plan Name [Axis] Plan Name [Axis] Income Tax Authority [Domain] Income Tax Jurisdiction [Domain] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Schedule of Share-Based Compensation Expense Share-Based Payment Arrangement, Cost by Plan [Table Text Block] Silicon Carbide Silicon Carbide LLC [Member] Silicon Carbide LLC 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five Payments on existing debt Repayments of Senior Debt Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Notional interest Effective Income Tax Rate Reconciliation, Notional Interest, Percent Effective Income Tax Rate Reconciliation, Notional Interest, Percent Term B Facility Term Loan B Credit Facility [Member] Term Loan B Credit Facility Conversion of Series A preferred stock Stock Issued During Period, Value, Conversion of Convertible Securities Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Class of Stock [Doamin] Class of Stock [Domain] Operating cash flows from finance leases Finance Lease, Interest Payment on Liability Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Accrued compensation and benefits Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current Aggregate Available Trading Arrangement, Securities Aggregate Available Amount 401(k) Profit Sharing Plan 401(k) Profit Sharing Plan [Member] 401(k) Profit Sharing Plan Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Discontinued Operations and Disposal Groups [Abstract] Adjusted variable rate floor Debt Instrument, Variable Rate, Adjusted Debt Instrument, Variable Rate, Adjusted Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Malaysia MALAYSIA Year 5 Lessee, Operating Lease, Liability, to be Paid, Year Five Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Gain on sale of shares Effective Income Tax Rate Reconciliation, Gain on Sale of Shares, Percent Effective Income Tax Rate Reconciliation, Gain on Sale of Shares, Percent Entity Filer Category Entity Filer Category Short-term investments Short-Term Investments Effective income tax rate, reductions Effective Income Tax Rate Reconciliation, Tax Holiday, Percent Finance Leases Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract] 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] Outstanding, beginning balance (in shares) Outstanding, ending balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number Stock, Class of Stock [Table] Stock, Class of Stock [Table] Net Earnings (Loss) Net Earnings (Loss) Net earnings (loss) Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Current Assets Assets, Current [Abstract] Tax on unremitted earnings Interest Rate Cap [Member] Senior Notes Senior Notes [Member] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Entity Address, Address Line One Entity Address, Address Line One Right-of-use assets obtained in exchange for new operating lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Impairment charges Intangible Asset, Finite-Lived, Impairment Loss North America North America [Member] 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 Proceeds from sales/maturities of short-term investments Proceeds from Sale, Maturity and Collection of Short-Term Investments Income Tax Expense Total Income Tax Expense Income Tax Expense (Benefit) Accumulated Other Comprehensive Income (Loss) (“AOCI”) Comprehensive Income, Policy [Policy Text Block] Deferred revenue Deferred Tax Assets, Deferred Income Swiss Plan Swiss Plan [Member] Swiss plan. Consolidation Consolidation, Policy [Policy Text Block] Korea KOREA, REPUBLIC OF Recently Issued Financial Accounting Standards Accounting Standards Update and Change in Accounting Principle [Text Block] Schedule of Stock Option and Cash-Based Stock Appreciation Rights Share-Based Payment Arrangement, Option and Stock Appreciation Rights, Activity [Table Text Block] Statement [Table] Statement [Table] Time deposits with maturities of one year or less Time Deposit Maturities, Next Rolling 12 Months Increase (decrease) in taxes resulting from: Effective Income Tax Rate Reconciliation, Increase (Decrease), Amount [Abstract] Effective Income Tax Rate Reconciliation, Increase (Decrease), Amount Total Shareholders' Equity Shareholders Equity, Excluding Treasury Stock Represents a subtotal of the Company's shareholders equity prior to the impact of treasury stock. Year 4 Lessee, Operating And Finance Lease Liability, Payments, Due Year Four Lessee, Operating And Finance Lease Liability, Payments, Due Year Four Springing maturity date, days prior to stated maturity Long-Term Debt, Term Upon Triggering Events, Days Prior To Maturity Long-Term Debt, Term Upon Triggering Events, Days Prior To Maturity Japan JAPAN Series B Convertible Preferred Stock Share-Based Payment Arrangement [Member] Federal Current Federal Tax Expense (Benefit)