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Total liabilities Liability, Defined Benefit Pension Plan Earnings Per Common Share Earnings Per Share [Abstract] Restructuring Plan [Axis] Restructuring Plan [Axis] 2030 Lessee, Operating Lease, Liability, to be Paid, Year Five Other income, net Total Other income, net Nonoperating Income (Expense) Disposals Goodwill, Written off Related to Sale of Business Unit Current and noncurrent customer deposits Increase (Decrease) in Contract with Customer, Liability Provisions for loss contracts Provision for Loss on Contracts Stock repurchase (in shares) Treasury Stock, Shares, Acquired Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Summary of significant accounting policies. Award Timing Disclosures [Line Items] Other Europe Other Europe [Member] Other Europe Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Schedule of Components of Inventory, Net of Reserves Schedule of Inventory, Current [Table Text Block] Remeasurement gain Business Combination, Achieved in Stages, Preacquisition Equity Interest in Acquiree, Remeasurement, Gain Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax State Deferred State and Local Income Tax Expense (Benefit) Net income attributable to Wabtec shareholders Net income attributable to Wabtec shareholders Net Income (Loss) Attributable to Parent Other accrued liabilities Other Accrued Liabilities, Current Schedule of Reconciliation of Income Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Award vesting period Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Other adjustments Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Deductions from reserves SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Repurchase of stock Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Reclassifications Reclassification, Comparability Adjustment [Policy Text Block] Balance at beginning of year Balance at end of year Contract with Customer, Asset, after Allowance for Credit Loss Financing Activities Cash Provided by (Used in) Financing Activity, Continuing Operation [Abstract] Customer Relationships Customer relationships Customer Relationships [Member] Income from operations Income (loss) from operations Operating Income (Loss) Line of Credit Line of Credit [Member] Stock-Based Compensation Compensation Related Costs, Policy [Policy Text Block] Retained earnings Retained Earnings (Accumulated Deficit) 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] Accrued expenses and reserves Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Expenses And Reserves Accrued expenses and reserves component of deferred income tax asset. Derivative contracts Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Intangible asset impairment charge Impairment of Intangible Assets, Finite-Lived Other Effective Income Tax Rate Reconciliation, Cross-Border, Other, Amount 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] Right-of-use assets Deferred Tax Assets, Right-of-use Asset Deferred Tax Assets, Right-of-use Asset Warranty reserve Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Warranty Reserves Other miscellaneous (expense) income Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Benefit payments expected Defined Benefit Plan, Expected Benefit Payment Defined Benefit Plan, Expected Benefit Payment Effect of changes in currency exchange rates on cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Deferred income taxes Deferred taxes Deferred Income Tax Expense (Benefit) Adjustments to reconcile net income to net cash provided by operations: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Expiration of audit statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Nontaxable or nondeductible items Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent Other foreign jurisdictions Foreign Tax Jurisdiction, Other [Member] Business combination, recognized asset acquired to liability assumed, excess (less), and goodwill Net assets acquired Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill Balance at beginning of year Balance at end of year Contract with Customer, Liability Number of countries where product found (more than) Number Of Countries Where Product Found Number of countries where product found. All Adjustments to Compensation All Adjustments to Compensation [Member] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Treasury stock, retired (in shares) Treasury Stock, Shares, Retired Amendment Flag Amendment Flag Fair value of assets acquired Fair Value of Assets Acquired Shares authorized for grants (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Treasury stock, at cost, 1.3 and 55.6 shares, at December 31, 2025 and 2024, respectively Treasury Stock, Common, Value Proceeds from treasury stock issued from the exercise of stock options and other benefit plans, net of tax (in shares) Stock Granted Exercised And Cancelled For Various Equity Instruments Stock awards granted, exercised and cancelled for the following forms of stock compensation 1) Stock Options 2) Restricted Stock Awards and 3) Incentive Stock Awards. Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Foreign currency loss Realized Gain (Loss), Foreign Currency Transaction, before Tax Debt instrument, variable interest rate, type flag Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration] Raw materials Inventory, Raw Materials, Net of Reserves Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent Deferred pre-production costs Preproduction Costs Related to Long-Term Supply Arrangements, Costs Capitalized Basic (in shares) Weighted average shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic SUPPLEMENTAL CASH FLOW DISCLOSURES Cash Flow, Supplemental Disclosures [Text Block] Unrecognized tax benefits if recognized that would affect effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Noncurrent liabilities Business Combination, Recognized Liability Assumed, Liability, Noncurrent Schedule of Computation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Exercisable options, end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Segment Reporting [Abstract] Segment Reporting [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Other income and expenses: Nonoperating Income (Expense) [Abstract] Scenario, Unspecified [Domain] Scenario [Domain] Below market intangible amortization Amortization of Intangible Liability Amortization of Intangible Liability Inspection Technologies Inspection Technologies [Member] Inspection Technologies Restructuring and Related Activities [Abstract] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share Based Compensation Arrangement By Share Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Deferred compensation/employee benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits Less: Net income allocated to non-vested restricted stock Net Income (Loss) Allocated to General Partners Acquisitions/adjustments Contract with Customer, Asset, Increase (Decrease) for Contract Acquired in Business Combination Use of Estimates Use of Estimates, Policy [Policy Text Block] Construction in progress Construction in Progress, Gross Income tax expense related to components of other comprehensive income (loss) Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Stated interest rate decreased Debt Instrument, Interest Rate, Stated Percentage Period Increase (Decrease) Debt Instrument, Interest Rate, Stated Percentage Period Increase (Decrease) Insider Trading Arrangements [Line Items] 4.90% Senior Notes, due 2030 4.90 Percent Senior Notes Due Two Thousand and Thirty [Member] 4.90 Percent Senior Notes Due Two Thousand and Thirty Total Liabilities Liabilities Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Current year amounts reclassified to net sales Contract With Customer Liability Revenue Recognized From Current Year Additions Contract With Customer Liability Revenue Recognized From Current Year Additions Consolidation Items [Axis] Consolidation Items [Axis] Restructuring charges, statement of income or comprehensive income [extensible enumeration] Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Deferred income tax liabilities: Components of Deferred Tax Liabilities [Abstract] 3.20% Senior Notes, due 2025 3.2000 Percent Senior Notes Due Two Thousand and Twenty Five [Member] 3.2000 Percent Senior Notes Due Two Thousand and Twenty Five Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Base Rate [Member]