Property, plant and equipment: Disposal Group, Including Discontinued Operation, Property, Plant and Equipment [Abstract] Disposal Group, Including Discontinued Operation, Property, Plant and Equipment Deferred and other income taxes Deferred Income Taxes and Tax Credits Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Variable Rate [Domain] Variable Rate [Domain] Legacy SPX Legacy SPX [Member] Legacy SPX Pay vs Performance Disclosure [Line Items] Accrued expenses Accrued Liabilities, Current Loss from discontinued operations, net of tax (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Statistical Measurement [Domain] Statistical Measurement [Domain] Net of tax provision (benefit) AOCI Tax, Attributable to Parent Maximum borrowing capacity under financing arrangement Line of Credit Facility, Maximum Borrowing Capacity Changes in operating assets and liabilities, net of effects from acquisitions and divestitures: Increase (Decrease) in Operating Capital [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Award Type [Domain] Award Type [Domain] Utilization — cash Restructuring and Integration Reserves, Settled with Cash Restructuring and Integration Reserves, Settled with Cash Fair Value as of Grant Date Award Grant Date Fair Value Remaining performance obligation, timing of satisfaction Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period Potential Uncertain Positions Income Tax Uncertainties, Policy [Policy Text Block] INDEBTEDNESS Debt Disclosure [Text Block] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Cash consideration Payments to Acquire Businesses, Gross Deferred income tax liabilities Deferred Tax Liabilities, Tax Deferred Income Number of countries in which entity operates Number of Countries in which Entity Operates Revolving loans Revolving Credit Facility [Member] Change in cash and equivalents due to changes in foreign currency exchange rates Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Payment to purchaser Payment for Divestiture Payment for Divestiture MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Performance Shares Performance Shares [Member] Duration of interest period Debt Instrument, Basis Spread on Variable Rate, Duration of Interest Period Debt Instrument, Basis Spread on Variable Rate, Duration of Interest Period Segment Reporting [Abstract] Segment Reporting [Abstract] Accounts payable Accounts Payable, Current Settlement and actuarial losses Defined Benefit Plan, Benefit Obligation, Settlements And Actuarial Gain (Loss) Defined Benefit Plan, Benefit Obligation, Settlements And Actuarial Gain (Loss) Restatement Determination Date: Restatement Determination Date [Axis] Liabilities of DBT and Heat Transfer (Note 3) Liabilities of Abandoned Entities Liabilities of Abandoned Entities Commitments and contingent liabilities (Note 15) Commitments and Contingencies As Previously Presented Previously Reported [Member] Insider Trading Policies and Procedures [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Current asset Derivative Asset, Current Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Inventory Write-down Inventory Write-down Geographical [Axis] Geographical [Axis] Debt Debt [Roll Forward] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] SOUTH AFRICA SOUTH AFRICA Foreign Plan Foreign Plan [Member] INCOME AND OTHER TAXES Income Tax Disclosure [Text Block] Usage Standard and Extended Product Warranty Accrual, Decrease for Payments Provisions Standard and Extended Product Warranty Accrual, Increase for Warranties Issued Goodwill related to foreign currency translation Goodwill, Related to Foreign Currency Translation and Other Represents the adjustments, during the period, to the net value of goodwill related to for foreign currency translation and other adjustments. Long-term incentive compensation expense APIC, Share-based Payment Arrangement, Long Term Incentive Compensation Expense APIC, Share-based Payment Arrangement, Long Term Incentive Compensation Expense Reporting Unit [Domain] Reporting Unit [Domain] Income (loss) from continuing operations per share of common stock basic (in dollars per share) Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax, Per Share, Basic Proceeds related to company-owned life insurance policies, net Proceeds from Life Insurance Policy Other indebtedness Other Borrowings [Member] Represents other borrowings which are not otherwise provided in the taxonomy. Property, plant and equipment, gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Property, plant and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Net cash used in discontinued operations Cash Provided by (Used in) Investing Activities, Discontinued Operations Current liabilities: Liabilities, Current [Abstract] Accumulated impairment, balance at the beginning of the period Accumulated impairment, balance at the end of the period Goodwill, Impaired, Accumulated Impairment Loss Recognition of certain uncertain tax positions Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Business Acquisition [Line Items] Business Acquisition [Line Items] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Large Power Projects Large Power Projects [Member] Large Power Projects [Member] Payment of contingent consideration Payment for Contingent Consideration Liability, Financing Activities Non-current liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities Net income (loss) per share (in dollars per share) Earnings Per Share, Diluted PEO Total Compensation Amount PEO Total Compensation Amount Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Land Land Changes in the carrying amount of goodwill Goodwill [Roll Forward] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Treasury stock (in shares) Treasury Stock, Common, Shares Line of Credit Line of Credit [Member] Schedule of Net Periodic Benefit (Income) Expense Schedule of Net Benefit Costs [Table Text Block] Litigation Case [Axis] Litigation Case [Axis] Trading Symbol Trading Symbol Letters of credit issued, amount outstanding Letters of Credit Outstanding, Amount Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Accounts payable Accounts payable Disposal Group, Including Discontinued Operation, Accounts Payable, Current Net income (loss) Net income (loss) Net loss Net income (loss) Net Income (Loss) Contract liabilities Disposal Group, Including Discontinued Operation, Contract Liabilities, Current Disposal Group, Including Discontinued Operation, Contract Liabilities, Current Cash acquired Cash Acquired from Acquisition Total current liabilities Liabilities, Current Reduction in estimated liability Business Combination, Reduction in Estimated Liability Business Combination, Reduction in Estimated Liability Derivative Contract [Domain] Derivative Contract [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Remeasurement due to settlement Remeasurement due to settlement Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement Borrowings under senior credit facilities Borrowings under Senior Credit Facilities The cash inflow from the senior credit facilities during the period. Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Company Selected Measure Name Company Selected Measure Name Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-Lived Intangible Assets, Major Class Name [Domain] Machinery and equipment Machinery and Equipment [Member] LEASES Lessee, Operating Leases [Text Block] Gross Carrying Value Intangible Assets, Gross (Excluding Goodwill) Property, plant and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Fed Funds Effective Rate Overnight Index Swap Rate Fed Funds Effective Rate Overnight Index Swap Rate [Member] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Amounts reclassified from accumulated other comprehensive income Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Other Other Intangible Assets [Member] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Cost of products sold Cost of Goods and Services Sold ALL Other ALL Other Discontinued Operations [Member] ALL Other Discontinued Operations Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Restricted stock shares/units Restricted Stock And Restricted Stock Units [Member] Restricted stock and restricted stock units as awarded by a company to their employees as a form of incentive compensation. Executive Category: Executive Category [Axis] Foreign Exchange Contract Foreign Exchange Contract [Member] ASPEQ Parent Holdings, Inc. ASPEQ Heating Group [Member] ASPEQ Heating Group Weighted-Average Shares Outstanding Used in Computation of Basic and Diluted Income per Share Schedule of Weighted Average Number of Shares [Table Text Block] Increase (decrease) in contract with customer, asset, net, current Increase (Decrease) in Contract with Customer, Asset, Net, Current Increase (Decrease) in Contract with Customer, Asset, Net, Current Name Measure Name Patents Patents [Member] Name Forgone Recovery, Individual Name Goodwill Goodwill, balance at the beginning of the period Goodwill, balance at the end of the period Goodwill Equity Components [Axis] Equity Components [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Buildings and leasehold improvements Buildings and Improvements, Gross Property, plant and equipment, gross Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Gross Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Gross Site investigation and remediation Environmental Issue [Member] Underlying Securities Award Underlying Securities Amount Entity Small Business Entity Small Business Estimated annual amortization expense, 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Four Increase (decrease) in contract with customer, liability, current Increase (Decrease) in Contract with Customer, Liability, Current Increase (Decrease) in Contract with Customer, Liability, Current Local Phone Number Local Phone Number Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Forecast Forecast [Member] Number of drawings Debt Instrument, Number of Drawings Debt Instrument, Number of Drawings Aggregate notional amount Derivative, Notional Amount Revenues recognized at a point in time Transferred at Point in Time [Member] Net cash from discontinued operations Cash Provided by (Used in) Financing Activities, Discontinued Operations BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Trademarks Trademarks with indefinite lives Trademarks [Member] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Financing fees paid Debt issuance costs Payments of Debt Issuance Costs Percentage of capital stock of domestic subsidiaries Debt Instrument, Collateral, Percentage of Capital Stock of Domestic Subsidiaries Debt Instrument, Collateral, Percentage of Capital Stock of Domestic Subsidiaries Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] Line of Credit Facility [Table] Line of Credit Facility [Table] Income Statement Location [Axis] Income Statement Location [Axis] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Collaborative Arrangement and Arrangement Other than Collaborative [Domain] Assets acquired: Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Currency translation adjustment and other Restructuring and Integration Reserves, Translation and Other Adjustment The amount of change in the restructuring and integration reserves related to foreign currency translation adjustments and any other adjustments not separately disclosed or provided for elsewhere in the Taxonomy. Site Contingency [Table] Site Contingency [Table] FX Forward Contracts Foreign Exchange Forward [Member] Balance at beginning of year Balance at end of period Restructuring and Integration Reserves Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. Also includes integration reserves. Other current assets Other current assets Disposal Group, Including Discontinued Operation, Other Assets, Current Accumulated depreciation Disposal Group, Including Discontinued Operation, Accumulated Depreciation Disposal Group, Including Discontinued Operation, Accumulated Depreciation Cash and equivalents Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Revenues Revenues Variable Interest Entity Consolidation, Variable Interest Entity, Policy [Policy Text Block] Income taxes payable Accrued Income Taxes, Current Income: Operating Income (Loss) [Abstract] Continuing Operations Income (Loss) from Continuing Operations before Income Taxes [Member] Income (Loss) from Continuing Operations before Income Taxes Product and Service [Domain] Product and Service [Domain] Other Performance Measure, Amount Other Performance Measure, Amount Recorded charges related to asbestos product liability matters Liability for Asbestos and Environmental Claims, Gross, Incurred Loss Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Inventories Increase (Decrease) in Inventories Domestic Plan Domestic Plan [Member] Number of third-party disposal sites for which entity is potentially responsible Site Contingency, Number of Sites on which Entity Potentially Responsible Represents the number of offsite, third-party disposal sites for which the entity is potentially responsible and have received notices of potential liability pursuant to various environmental laws. Other operating expense, net Other Expenses Contract assets Contract Assets Contract with Customer, Asset, after Allowance for Credit Loss, Current Cash flows from (used in) investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Payments for asbestos-related matters, net of insurance recoveries Liability for Asbestos and Environmental Claims, Net, Payment for Claims Gain contingency Gain Contingency, Unrecorded Amount Acquisition-related and other costs Business Combination, Acquisition Related Costs Award Type [Axis] Award Type [Axis] Number of options or units that were excluded from the computation of diluted income per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Document Quarterly Report Document Quarterly Report Payment for bonds Payment for Debt Extinguishment or Debt Prepayment Cost Interest expense Interest expense Interest Expense Mature Within One Year Mature Within One Year [Member] Mature Within One Year Loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Hedging Designation [Axis] Hedging Designation [Axis] Derivative Financial Instruments Summary of Derivative Instruments [Abstract] Schedule of changes in the carrying amount of goodwill, by reportable segment and other operating segments Goodwill [Line Items] Estimated annual amortization expense, remainder of the year Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Trading Arrangement: Trading Arrangement [Axis] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Use of Estimates Use of Estimates, Policy [Policy Text Block] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount LEASES Lessee, Finance Leases [Text Block] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Timing of Transfer of Good or Service [Axis] Timing of Transfer of Good or Service [Axis] Accounts receivable, net Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Percentage of fair value in excess of carrying amount Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount Entity File Number Entity File Number Loss Contingencies [Table] Loss Contingencies [Table] Sensors & Software Inc. Sensors Software Inc [Member] Sensors Software Inc Leverage ratio Debt Instrument, Covenant Terms, Consolidated Leverage Ratio Debt Instrument, Covenant Terms, Consolidated Leverage Ratio Operating Loss Carryforwards Operating Loss Carryforwards [Line Items] Communication technologies, aids to navigation, and transportation systems Communication Technologies, Aids To Navigation, And Transportation Systems [Member] Signal Monitoring, Obstruction Lighting, And Bus Fare Collection Systems [Member] Less: Current portion of warranty Product Warranty Accrual, Current Raw materials and purchased parts Inventory, Raw Materials and Purchased Parts, Net of Reserves Intangible amortization Amortization of intangible assets Amortization of Intangible Assets Entity Shell Company Entity Shell Company Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Net Carrying Value Net Carrying Value Finite-Lived Intangible Assets, Net New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Restatement Determination Date Restatement Determination Date Package and process cooling equipment and services, and engineered air movement solutions Package And Process Cooling Equipment And Services, And Engineered Air Movement Solutions [Member] Represents the cooling equipment and services unit of the entity. Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Restricted stock unit vesting Restricted Stock, Value, Shares Issued Net of Tax Withholdings Interest income Investment Income, Interest Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Term loans Term loan Loans Payable [Member] Triggering Event [Axis] Triggering Event [Axis] Triggering Event Common stock issued (in shares) Common Stock, Shares, Issued Corporate expense Corporate expense Operating Expense Operating Expense Consolidated Leverage Ratio Line of Credit Facility, Commitment Fee Percentage Contract liabilities Contract Liabilities - current Contract with Customer, Liability, Current Common stock in treasury (7,947,590 and 8,058,929 shares at September 30, 2023 and December 31, 2022, respectively) Treasury Stock, Common, Value Security Exchange Name Security Exchange Name Selling, general and administrative Selling, General and Administrative Expense Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Foreign Currency Translation Adjustment Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Stock Options Employee Stock Option [Member] DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] Defined benefit plan, net periodic benefit expense Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Net repayments under other financing arrangements Proceeds from (Payments for) Other Financing Activities Maximum Maximum [Member] Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent Property, plant and equipment: Property, Plant and Equipment, Net [Abstract] Document Type Document Type Goodwill Resulting from Business Combinations Goodwill, Acquired During Period Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Projected benefit obligation Settlement loss, net Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement Tabular List, Table Tabular List [Table Text Block] Net income (loss) per share of common stock diluted (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Loss from discontinued operations, net of tax (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Entity Address, Address Line One Entity Address, Address Line One Common stock repurchases Share repurchases Treasury Stock, Value, Acquired, Cost Method Entity Address, Address Line Two Entity Address, Address Line Two Inventories, Net Inventory, Policy [Policy Text Block] Pension and other employee benefits Pension and Other Postretirement Benefits Cost (Reversal of Cost) Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Current SPX Term Loan Facilities Current SPX Term Loan Facilities [Member] Current SPX Term Loan Facilities [Member] Analysis of product warranty accrual Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Other, net Other Noncash Income (Expense) SPX Postretirement Plans SPX Postretirement Plans [Member] SPX Postretirement Plans Step-Up of Inventory Step-Up of Inventory [Member] Step-Up of Inventory HVAC reportable segment HVAC HVAC Reportable Segment [Member] HVAC Reportable Segment [Member] Business Acquisition [Axis] Business Acquisition [Axis] Derivative fair value Derivative, Fair Value, Net Remaining performance obligation Revenue, Remaining Performance Obligation, Percentage Schedule of Line of Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Derivative [Table] Derivative [Table] Variable Rate [Axis] Variable Rate [Axis] Accounts payable, accrued expenses and other Increase (Decrease) in Accounts Payable and Accrued Liabilities Income Statement [Abstract] Income Statement [Abstract] Percentage of capital stock of material first tier foreign subsidiaries Debt Instrument, Collateral, Percentage of Capital Stock of Material First Tier Foreign Subsidiaries Debt Instrument, Collateral, Percentage of Capital Stock of Material First Tier Foreign Subsidiaries Title of 12(b) Security Title of 12(b) Security Special Charges, Net Restructuring Cost and Reserve [Line Items] Litigation settlement Litigation Settlement, Amount Awarded from Other Party Gross goodwill, beginning of the period Gross goodwill, end of the period Goodwill, Gross Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Secured Overnight Financing Rate (SOFR), Period One Secured Overnight Financing Rate (SOFR), Period One [Member] Secured Overnight Financing Rate (SOFR), Period One Net periodic pension/postretirement benefit expense Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Trademarks with indefinite lives Trademarks Indefinite-Lived Intangible Assets (Excluding Goodwill) Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Net income (loss) Business Acquisition, Pro Forma Net Income (Loss) Operating Segments Operating Segments [Member] Other current assets Other Assets, Current Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Net unrecognized tax benefits Unrecognized Tax Benefits, Net The net amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date. Fixed rate Derivative, Fixed Interest Rate Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Discontinued operation of incurred charges Disposal Group, Including Discontinued Operation, Settlement Charges Disposal Group, Including Discontinued Operation, Settlement Charges Diluted income (loss) per share of common stock: Earnings Per Share, Diluted [Abstract] Entity Tax Identification Number Entity Tax Identification Number Balance at the beginning of the period Balance at the end of the period Debt, Long-Term and Short-Term, Combined Amount Inventories, net Total inventories Inventory, Net Statistical Measurement [Axis] Statistical Measurement [Axis] Insurance recoveries Insurance Recoveries Balance Sheet Location [Domain] Balance Sheet Location [Domain] Entity Interactive Data Current Entity Interactive Data Current Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Adjustment to purchase price Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred Other assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Adjustments to reconcile income from continuing operations to net cash from (used in) operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Total Shareholder Return Amount Total Shareholder Return Amount Net accrued interest Unrecognized Tax Benefits, Interest on Income Taxes Accrued, Net Represents the net (net of applicable income tax effect) amount of interest expense accrued as of the date of statement of financial position for underpayment of income taxes, computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity. Property, plant and equipment, net Disposal Group, Including Discontinued Operation, Property, Plant and Equipment Repurchases of common stock Payments for Repurchase of Common Stock Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Deferred and other income taxes Deferred Income Taxes and Other Tax Liabilities, Noncurrent AQUISITIONS AND DISCONTINUED OPERATIONS Mergers, Acquisitions and Dispositions Disclosures [Text Block] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Effective income tax rate reconciliation, change in deferred tax assets valuation allowance, amount Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Uncertain Tax Position, Amount Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Uncertain Tax Position, Amount Segments [Domain] Segments [Domain] Stock-based Compensation Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Increase (decrease) in accounts receivable Increase (Decrease) in Accounts Receivable, Net Increase (Decrease) in Accounts Receivable, Net Consolidation Items [Domain] Consolidation Items [Domain] Acquisitions and Discontinued Operations [Abstract] Acquisitions and Discontinued Operations [Abstract] Acquisitions and Discontinued Operations Retained earnings (deficit) Retained Earnings (Accumulated Deficit) Measure: Measure [Axis] Gain (loss) related to litigation settlement Gain (Loss) Related to Litigation Settlement Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Name Outstanding Recovery, Individual Name MHI Additional Claims MHI Additional Claims [Member] MHI Additional Claims Face amount of debt Debt Instrument, Face Amount Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Current assets: Assets, Current [Abstract] Goodwill and Other Intangible Assets Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Product Warranties Disclosures [Abstract] Product Warranties Disclosures [Abstract] Leases [Abstract] Leases [Abstract] Total assets of DBT Disposal Group, Including Discontinued Operation, Assets Entity Address, State or Province Entity Address, State or Province Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Currency Forward Contracts Derivatives, Policy [Policy Text Block] Cash flows from (used in) operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Income from continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Basic Share Estimated annual amortization expense, 2027 Finite-Lived Intangible Asset, Expected Amortization, Year One Common stock outstanding (in shares) Common Stock, Shares, Outstanding Environmental Remediation Contingency [Axis] Environmental Remediation Contingency [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] Basic income (loss) per share of common stock: Earnings Per Share, Basic [Abstract] Interest cost Defined Benefit Plan, Interest Cost PEO PEO [Member] Estimate of possible legal claim deemed unlikely Loss Contingency, Estimate of Possible Loss Employee Benefit Plans Defined Benefit Plan Disclosure [Line Items] EMPLOYEE BENEFIT PLANS Retirement Benefits [Text Block] Income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Security at fair value Equity Securities, FV-NI, Current Schedule of Amounts Reclassified from Each Component of Other Comprehensive Income (Loss) Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Swaps Interest Rate Swap [Member] Income from continuing operations Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax Debt Instrument [Axis] Debt Instrument [Axis] Income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Schedule of Impact Change on the Segment Income Previously Presented Schedule of Error Corrections and Prior Period Adjustments [Table Text Block] Total liabilities Disposal Group, Including Discontinued Operation, Liabilities Litigation expense Litigation Settlement, Expense Increase in goodwill Goodwill, Period Increase (Decrease) Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Effective income tax rate (as a percent) Effective Income Tax Rate Reconciliation, Percent Repayments Repayments of Debt Current assets, including cash and equivalents of $0.9 Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets Other assets Other assets Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent Discontinued Operation Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax [Member] Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax Credit Facility [Axis] Credit Facility [Axis] Term SOFR Loans Secured Overnight Financing Rate (SOFR) [Member] Secured Overnight Financing Rate (SOFR) Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] STOCKHOLDERS' EQUITY AND LONG-TERM INCENTIVE COMPENSATION Shareholders' Equity and Share-Based Payments [Text Block] Purchase card programs Short-Term Bank Loans and Notes Payable Accum. Other Comprehensive Income AOCI Attributable to Parent [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] All Executive Categories All Executive Categories [Member] Contract liabilities - non-current Contract with Customer, Liability, Noncurrent Accumulated impairments related to foreign currency translation Accumulated Impairments, Related to Foreign Currency Translation and Other Adjustments Represents the adjustments, during the period, to the accumulated impairments of Goodwill related to foreign currency translation and other adjustments. Title of Individual [Axis] Title of Individual [Axis] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Pension and Postretirement Liability Adjustment Gains on pension and postretirement items: Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Property, Plant and Equipment, Type [Domain] Long-Lived Tangible Asset [Domain] Related tax benefit Share-Based Payment Arrangement, Expense, Tax Benefit Environmental Matters Site Contingency [Line Items] Number of reportable segments Number of Reportable Segments Income Per Share Earnings Per Share [Abstract] Total cash and equivalents Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Reasonably possible amount that unrecognized tax benefits could decrease within next 12 months, high end of range Decrease in Unrecognized Tax Benefits is Reasonably Possible Gross goodwill related to foreign currency translation Gross Goodwill, Related to Foreign Currency Translation and Other Represents the adjustments, during the period, to the gross value of goodwill related to foreign currency translation and other adjustments. Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Discontinued Operations Discontinued Operations [Member] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Total current assets Assets, Current Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Increase (decrease) in contract with customers, net Increase in contract with customers, net Increase (Decrease) in Contract with Customers, Net Increase (Decrease) in Contract with Customers, Net Net periodic pension benefit expense Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Contingent consideration liability Business Combination, Contingent Consideration, Liability Contract accounts receivable Accounts Receivable, after Allowance for Credit Loss Revenues: Revenue from Contract with Customer [Abstract] All Individuals All Individuals [Member] ASSETS Disposal Group, Including Discontinued Operation, Assets [Abstract] Penalties accrued Unrecognized Tax Benefits, Income Tax Penalties Accrued Boilers, electrical heating, and ventilation Boiler, Electrical Heating And Ventilation [Member] Boiler, Electrical Heating And Ventilation Litigation Case [Domain] Litigation Case [Domain] Other income (expense), net Amortization of unrecognized prior service credits - Pre-tax Other Nonoperating Income (Expense) Entity Filer Category Entity Filer Category Retirement Plan Name [Domain] Retirement Plan Name [Domain] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Other liabilities Other Liabilities Statement [Table] Statement [Table] Current Fiscal Year End Date Current Fiscal Year End Date Authorized amount Stock Repurchase Program, Authorized Amount GOODWILL AND OTHER INTANGIBLE ASSETS Goodwill and Intangible Assets Disclosure [Text Block] Senior Credit Facilities Senior Credit Facilities [Member] Senior Credit Facilities NEW ACCOUNTING PRONOUNCEMENTS Accounting Standards Update and Change in Accounting Principle [Text Block] Gross unrecognized tax benefits Unrecognized Tax Benefits Excess tax benefit from stock-based compensation awards vested Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount Income Tax Authority [Axis] Income Tax Authority [Axis] PEO Name PEO Name Schedule of Changes in Components of Accumulated Other Comprehensive Income, Net of Tax, Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] ABR Loans Base Rate [Member] Estimated annual amortization expense, 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Five Schedule of Changes in Goodwill Schedule of Goodwill [Table Text Block] Trade receivables financing arrangement Asset-Backed Securities [Member] Postretirement Plans Other Postretirement Benefits Plan [Member] Net cash from (used in) operating activities Net Cash Provided by (Used in) Operating Activities FX forward contracts Forward Contracts [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate, Base Debt Instrument, Basis Spread on Variable Rate, Base Amortization of unrecognized prior service credits Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Corporate expense Corporate, Non-Segment [Member] Fees paid Debt Instrument, Fee Amount Depreciation and amortization Depreciation, Depletion and Amortization Other operating expense, net Other operating expense, net Other Operating Income (Expense), Net Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Term loan Medium-term Notes [Member] Revenues recognized over time Transferred over Time [Member] Balance at beginning of year Balance at end of period Standard and Extended Product Warranty Accrual Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Income tax benefit Discontinued Operation, Tax Effect of Discontinued Operation Gain on disposal Gain (Loss) on Disposition of Business Analysis of Restructuring Liabilities Schedule of Restructuring and Integrated Liabilities [Table Text Block] Tabular disclosure to roll forward the entity's restructuring and integration reserves associated with the exit from or disposal of business activities or restructuring for the period. Total stockholders' equity Balance at beginning of period Balance at end of period Equity, Attributable to Parent Consolidation Items [Axis] Consolidation Items [Axis] Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Acquired receivable, fair Value Business Combination, Acquired Receivable, Fair Value Revenues Business Acquisition, Pro Forma Revenue Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Reporting Unit [Axis] Reporting Unit [Axis] Accounts receivable and other assets Increase (Decrease) in Accounts Receivable and Other Operating Assets Contract with customer, revenue recognized Contract with Customer, Liability, Revenue Recognized Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Net Unrealized Gains (Losses) on Qualifying Cash Flow Hedges Gains on qualifying cash flow hedges: Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Revision of Prior Period [Domain] Revision of Prior Period [Domain] Long-term debt Long-Term Debt and Lease Obligation Income from continuing operations before income taxes Pre-tax Income (loss) from continuing operations before income taxes, noncontrolling interest Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Fair Value Fair Value Measurement, Policy [Policy Text Block] Foreign credit instrument facility Foreign Line of Credit [Member] Retirement Plan Name [Axis] Retirement Plan Name [Axis] Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Hedging Designation [Domain] Hedging Designation [Domain] New Accounting Pronouncements and Changes in Accounting Principles [Abstract] Accounting Standards Update and Change in Accounting Principle [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company ITL ITL [Member] ITL Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Additional Swaps Interest Rate Swap, Through November 2024 [Member] Interest Rate Swap, Through November 2024 Unamortized debt issuance costs Debt Issuance Costs, Net Capital expenditures Payments to Acquire Productive Assets Intangibles, net Net Carrying Value Intangible Assets, Net (Excluding Goodwill) Schedule of Warranty Accrual Schedule of Product Warranty Liability [Table Text Block] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Number of large power projects Number Of Large Power Projects Number Of Large Power Projects T. A. Morrison & Co. Inc. (TAMCO) T. A. Morrison & Co. Inc. (TAMCO) [Member] T. A. Morrison & Co. Inc. (TAMCO) Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Current Revolving SPX Facilities Current Revolving SPX Facilities [Member] Current Revolving SPX Facilities [Member] Accounts receivable and other assets, write off Accounts Receivable and Other Assets, Write Off Accounts Receivable and Other Assets, Write Off Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles SPECIAL CHARGES, NET Restructuring, Impairment, and Other Activities Disclosure [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus DBT DBT Technologies Including CTA Write-Off [Member] DBT Technologies Including CTA Write-Off Amount of available borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Secured Overnight Financing Rate (SOFR), Period Three Secured Overnight Financing Rate (SOFR), Period Three [Member] Secured Overnight Financing Rate (SOFR), Three -Month Title Trading Arrangement, Individual Title Long-term incentive compensation Share-Based Payment Arrangement, Noncash Expense Secured Overnight Financing Rate (SOFR), Period Two Secured Overnight Financing Rate (SOFR), Period Two [Member] Secured Overnight Financing Rate (SOFR), Period Two Common Stock Common Stock [Member] Non-U.S Foreign Tax Authority [Member] Individual: Individual [Axis] City Area Code City Area Code Entity Address, Postal Zip Code Entity Address, Postal Zip Code Product and Service [Axis] Product and Service [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Non-current asset Derivative Asset, Noncurrent Document Fiscal Year Focus Document Fiscal Year Focus Weighted-average interest rate of senior credit facilities (as a percent) Debt, Weighted Average Interest Rate Geographical [Domain] Geographical [Domain] Cincinnati Fan Cincinnati Fan [Member] Cincinnati Fan Minimum Minimum [Member] Exercise Price Award Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Other comprehensive loss, net Other Comprehensive Income (Loss), Net of Tax Deferred payment Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High Periodic payment (as a percent of principal) Debt Instrument, Periodic Payment, Percentage Of Principal Debt Instrument, Periodic Payment, Percentage Of Principal Disposal Group Classification [Axis] Disposal Group Classification [Axis] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] ASSETS Assets [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Minimum withholdings paid on behalf of employees for net share settlements, net of proceeds from the exercise of employee stock options Payment, Tax Withholding, Share-Based Payment Arrangement Fiscal Period Fiscal Period, Policy [Policy Text Block] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Non Employee Director Non Employee Director [Member] Non Employee Director Taxes paid Income Taxes Paid, Net Loss from discontinued operations, net of tax Less: Loss from discontinued operations, net of tax Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest ULC Robotics ULC Robotics [Member] ULC Robotics Net cash from (used in) financing activities Net Cash Provided by (Used in) Financing Activities Deferred income taxes Deferred Income Tax Assets, Net Retirement Plan Type [Axis] Retirement Plan Type [Axis] Detection and Measurement reportable segment Detection and Measurement Detection and Measurement Reportable Segment [Member] Detection and Measurement Reportable Segment [Member] CONTINGENT LIABILITIES AND OTHER MATTERS Commitments and Contingencies Disclosure [Text Block] Income from continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Diluted Share Technology Developed Technology Rights [Member] Borrowings under trade receivables arrangement Borrowing under Trade Receivables Agreement The cash inflow from the trade receivables agreement during the period. Greater than or equal to 3.00 to 1.0 Senior Credit Agreement, Range 3 [Member] Senior Credit Agreement, Range 3 Retained Earnings Retained Earnings [Member] Goodwill, expected tax deductible amount Business Acquisition, Goodwill, Expected Tax Deductible Amount Current maturities of long-term debt Less: current maturities of long-term debt Long-Term Debt, Current Maturities Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity Other assets Other Assets, Noncurrent Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Amortization period Finite-Lived Intangible Assets, Remaining Amortization Period Net income (Loss) per share (in dollars per share) Earnings Per Share, Basic Other long-term liabilities Disposal Group, Including Discontinued Operation, Other Liabilities Accounting Policies [Abstract] Other Debt Instrument, Increase (Decrease), Other, Net Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Indefinite-lived Intangible Assets [Line Items] Indefinite-Lived Intangible Assets [Line Items] WARRANTY Product Warranty Disclosure [Text Block] Arrangement Duration Trading Arrangement Duration Income (loss) from discontinued operations Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax International Tower Lighting, LLC International Tower Lighting, LLC [Member] International Tower Lighting, LLC Entity Address, City or Town Entity Address, City or Town Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Schedule of Financial Data for Reportable Segments and Other Operating Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] LIABILITIES Disposal Group, Including Discontinued Operation, Liabilities [Abstract] Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Total long-term liabilities Liabilities, Noncurrent Borrowings Proceeds from Issuance of Debt Document Transition Report Document Transition Report Award Timing Predetermined Award Timing Predetermined [Flag] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Termination Date Trading Arrangement Termination Date Schedule of Debt Instruments [Table] Schedule of Debt Instruments [Table] A table or schedule providing information pertaining to short-term and long-term debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. Assets of DBT and Heat Transfer (includes cash and equivalents of $1.1 and $9.3 at September 30, 2023 and December 31, 2022, respectively) (Note 3) Assets of Abandoned Entities Assets of Abandoned Entities DBT Technologies DBT Technologies [Member] DBT Technologies [Member] Repayments under trade receivables arrangement Repayments under Trade Receivables Agreement The cash outflow for the trade receivables agreement during the period. Short-term debt Less: short-term debt Short-Term Debt 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] (Gain) loss on change in fair value of equity security Equity Securities, FV-NI, Gain (Loss) Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Derivative Instrument [Axis] Derivative Instrument [Axis] All Trading Arrangements All Trading Arrangements [Member] Acquisitions Standard and Extended Product Warranty Accrual, Additions from Business Acquisition Accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization All Adjustments to Compensation All Adjustments to Compensation [Member] Derivative Financial Instruments Derivative [Line Items] Restructuring liabilities Restructuring Reserve [Roll Forward] Timing of Transfer of Good or Service [Domain] Timing of Transfer of Good or Service [Domain] Common stock (53,581,770 and 45,634,180 issued and outstanding at September 30, 2023, respectively, and 53,350,918 and 45,291,989 issued and outstanding at December 31, 2022, respectively) Common Stock, Value, Outstanding Award Timing Disclosures [Line Items] Title of Individual [Domain] Title of Individual [Domain] Compensation Amount Outstanding Recovery Compensation Amount Excess tax benefit from withholding tax on distribution Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Foreign Tax Withholding, Amount Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Foreign Tax Withholding, Amount Greater than or equal to 2.00 to 1.0 but less than 3.00 to 1.0 Senior Credit Agreement, Range 2 [Member] Senior Credit Agreement, Range 2 Accruals included in other long-term liabilities Loss Contingency, Accrual, Noncurrent Debt instrument, unused borrowing capacity, amount Debt Instrument, Unused Borrowing Capacity, Amount Net cash from (used in) continuing operations Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash used in continuing operations Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash from (used in) continuing operations Net Cash Provided by (Used in) Operating Activities, Continuing Operations Finance lease, liability Finance Lease, Liability Estimated annual amortization expense, 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Three Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Consideration payable Defined Benefit Plan, Accumulated Benefit Obligation Insider Trading Arrangements [Line Items] Components of accumulated other comprehensive income, net of tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Loss on disposition of discontinued operations, net of tax Gain (loss) on disposition of discontinued operations, net of tax Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Schedule of Identifiable Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] 2022 and 2023 Debt Instrument, Redemption, Period One [Member] Machinery and equipment Machinery and Equipment, Gross Entity Registrant Name Entity Registrant Name Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Award Timing Method Award Timing Method [Text Block] Dilutive securities — employee stock options and restricted stock units (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Buildings and leasehold improvements Buildings and Leasehold Improvements [Member] Buildings and Leasehold Improvements Incremental Term loans Incremental Term loans [Member] Incremental Term loans Estimated annual amortization expense, 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Two Adjustment to Compensation, Amount Adjustment to Compensation Amount Triggering Event [Domain] Triggering Event [Domain] Triggering Event [Domain] Cost of Sales Cost of Sales [Member] Underground locators, inspection and rehabilitation equipment, and robotic systems Underground Locators, Inspection And Rehabilitation Equipment, And Robotic Systems [Member] Underground Locators, Inspection And Rehabilitation Equipment, And Robotic Systems Total assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired Including Goodwill Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Acquired Including Goodwill Cash spending on restructuring actions Payments for Restructuring Document Period End Date Document Period End Date Less than 2.00 to 1.0 Senior Credit Agreement, Range 1 [Member] Senior Credit Agreement, Range 1 Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Adoption Date Trading Arrangement Adoption Date Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Number of sites Site Contingency, Number of Sites Represents the number of sites which have liabilities for site investigation and remediation. Disposal Group Name [Axis] Disposal Group Name [Axis] Common Stock In Treasury Treasury Stock, Common [Member] Entity Central Index Key Entity Central Index Key Amount Reclassified from AOCI Reclassification out of Accumulated Other Comprehensive Income [Member] SPX Heat Transfer Business SPX Heat Transfer Business [Member] SPX Heat Transfer Business [Member] Carrying values of accruals Loss Contingency Accrual Benefit obligation, payment for settlement Defined Benefit Plan, Benefit Obligation, Payment for Settlement Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Long-term incentive compensation expense Long-term incentive compensation expense Share-Based Payment Arrangement, Expense Repayments under senior credit facilities Repayments under Senior Credit Facilities The cash outflow from the senior credit facilities during the period. Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Gross Carrying Value Finite-Lived Intangible Assets, Gross Income tax (provision) benefit Income taxes Income tax provision Income Tax Expense (Benefit) Environmental Remediation Contingency [Domain] Environmental Remediation Contingency [Domain] Finished goods Inventory, Finished Goods, Net of Reserves Derivative contracts designated as hedging instruments Designated as Hedging Instrument [Member] Gross amount of receivables acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Net income (loss) per share of common stock basic (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Income Tax Authority [Domain] Income Tax Authority [Domain] FAIR VALUE Fair Value Disclosures [Text Block] Special charges, net Special charges, net Special charges Special Charges Amount charged against earnings in the period for incurred and estimated costs associated with an exit from business activities or restructuring pursuant to a duly authorized plan, excluding asset retirement obligations. Such costs include charges associated with employee terminations, lease terminations, asset impairments, etc. Name Trading Arrangement, Individual Name Current-period other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Income (loss) from continuing operations per share of common stock diluted (in dollars per share) Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax, Per Share, Diluted Net cash used in discontinued operations Cash Provided by (Used in) Operating Activities, Discontinued Operations Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Loss on amendment/refinancing of senior credit agreement Loss on amendment/refinancing of senior credit agreement Deferred Debt Issuance Cost, Writeoff Payments for legal settlements Payments for Legal Settlements Equity [Abstract] INVENTORIES, NET Inventory Disclosure [Text Block] Income (loss) from discontinued operations, net of tax Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax Fee percentage Debt Instrument, Fee Percentage Debt Instrument, Fee Percentage Net assets acquired Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Cash and equivalents included in assets of DBT and Heat Transfer Cash and Cash Equivalents Included In Assets of Abandoned Entities Cash and Cash Equivalents Included In Assets of Abandoned Entities Revenues Revenues Revenue from Contract with Customer, Excluding Assessed Tax Entity [Domain] Entity [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Number of disputes Number Of Disputes Number Of Disputes Amendment Flag Amendment Flag Legal Entity [Axis] Legal Entity [Axis] Transformer Solutions Transformer Solutions [Member] Transformer Solutions Cash and equivalents Cash and equivalents Cash and Cash Equivalents, at Carrying Value Business acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Credit Facility [Domain] Credit Facility [Domain] Net contract balance Contract with Customers, Net Contract with Customers, Net Share repurchase (in shares) Treasury Stock, Shares, Acquired Basis spread on variable rate (as a percent) Debt Instrument, Basis Spread on Variable Rate Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Weighted-average number of common shares outstanding — diluted (in shares) Weighted-average number of common shares and dilutive securities used in diluted income per share (in shares) Weighted Average Number of Shares Outstanding, Diluted Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Enterprise Control Systems Ltd Enterprise Control Systems Ltd [Member] Enterprise Control Systems Ltd Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Identifiable intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Effect of Change Revision of Prior Period, Change in Accounting Principle, Adjustment [Member] Number of wholly-owned subsidiaries divested Number Of Wholly-Owned Subsidiaries Divested Number Of Wholly-Owned Subsidiaries Divested Contract with Customer, Asset and Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Schedule of Discontinued Operations Disposal Groups, Including Discontinued Operations [Table Text Block] Intangible Assets, Net (Excluding Goodwill) [Abstract] Intangible Assets, Net (Excluding Goodwill) [Abstract] Costs and expenses: Operating Expenses [Abstract] REVENUES FROM CONTRACTS Revenue from Contract with Customer [Text Block] Company Selected Measure 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[Axis] Cover page. Cover [Abstract] Currency translation adjustment Standard and Extended Product Warranty Accrual, Foreign Currency Translation Gain (Loss) Number of countries in which entity sells its products and services Number of Countries in which Entity Sells its Products and Services Represents the number of countries in which the entity sells its products and services. Unrealized gain (loss) recorded in AOCI AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax Incentive plan activity APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Loss on settlement Defined Benefit Plan, Benefit Obligation, Loss on Settlement Defined Benefit Plan, Benefit Obligation, Loss on Settlement UNITED STATES UNITED STATES Segment Reconciling Items Segment Reconciling Items [Member] Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Other long-term liabilities Other Liabilities, Noncurrent Non-NEOs Non-NEOs [Member] Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Current liabilities assumed Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Pension Plan Pension Plan [Member] INFORMATION ON REPORTABLE SEGMENTS Segment Reporting Disclosure [Text Block] Net change in cash and equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash flows from (used in) financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Secured Debt Secured Debt [Member] Non-PEO NEO Non-PEO NEO [Member] Equity Component [Domain] Equity Component [Domain] Adjustment to Compensation: Adjustment to Compensation [Axis] Work in process Inventory, Work in Process, Net of Reserves Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Accrued expenses Accrued expenses Disposal Group, Including Discontinued Operation, Accrued Liabilities, Current Debt activity Debt Instrument [Line Items] Due in September 2024 Due in September 2024 [Member] Due in September 2024 Scenario [Axis] Scenario [Axis] Weighted-average number of common shares outstanding — basic (in shares) Weighted-average number of common shares used in basic income per share (in shares) Weighted Average Number of Shares Outstanding, Basic Entity Current Reporting Status Entity Current Reporting Status Operating income Consolidated operating income Operating Income (Loss) Percentage of non-voting capital stock Debt Instrument, Collateral, Percentage of Non-Voting Capital Stock of Material First Tier Foreign Subsidiaries Debt Instrument, Collateral, Percentage of Non-Voting Capital Stock of Material First Tier Foreign Subsidiaries First three quarters of 2024 Debt Instrument, Redemption, Period Two [Member] Other Long Term Liabilities Other Long Term Liabilities [Member] Other Long Term Liabilities [Member] Schedule of Indefinite-Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Segments [Axis] Segments [Axis] Statement [Line Items] Statement [Line Items] Gross accrued interest Unrecognized Tax Benefits, Interest on Income Taxes Accrued Scenario [Domain] Scenario [Domain] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Schedule of Debt Activity, Current and Noncurrent Schedule of Debt [Table Text Block] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Customer relationships Customer Relationships [Member] Non-current portion of warranty Product Warranty Accrual, Noncurrent Stockholders' Equity: Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Schedule of Special Charges Schedule of Restructuring Impairment and Other Activities by Segment [Table Text Block] Tabular disclosure of the restructuring, impairment and other related charges by reporting segment of the entity.