75000 - Document - Document and Entity Information
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link:calculationLink
link:definitionLink
75010 - Statement - Consolidated Statements of Operations
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link:calculationLink
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75020 - Statement - Consolidated Statements of Comprehensive Income (Loss)
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75030 - Statement - Consolidated Statements of Comprehensive Income (Loss) (Parenthetical)
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75040 - Statement - Consolidated Balance Sheets
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75050 - Statement - Consolidated Balance Sheets (Parenthetical)
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75060 - Statement - Consolidated Statements of Shareholder's Equity
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75070 - Statement - Consolidated Statements of Cash Flows
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75080 - Statement - Consolidated Statements of Cash Flows (Parenthetical)
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995457 - Disclosure - Cybersecurity Risk Management, Strategy, and Governance
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995467 - Disclosure - Basis of Presentation
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995477 - Disclosure - Significant Accounting Policies
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995487 - Disclosure - Segment Information
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995497 - Disclosure - Revenue Recognition
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995507 - Disclosure - Restructuring Charges
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995517 - Disclosure - Disposition of Non-Core Assets
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995527 - Disclosure - Other (Income) Expense, Net
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995537 - Disclosure - Income Tax Provision
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link:calculationLink
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995547 - Disclosure - Earnings (Loss) Per Share
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link:calculationLink
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995557 - Disclosure - Inventories
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995567 - Disclosure - Property, Plant and Equipment
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995577 - Disclosure - Intangible Assets
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995587 - Disclosure - Leases
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995597 - Disclosure - Financing Arrangements
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995607 - Disclosure - Retirement and Postretirement Plans
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995617 - Disclosure - Stock-Based Compensation
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995627 - Disclosure - Accumulated Other Comprehensive Income (Loss)
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995637 - Disclosure - Contingencies
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995647 - Disclosure - Subsequent Events
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995657 - Disclosure - Selected Quarterly Financial Data (Unaudited)
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995667 - Disclosure - Schedule II-Valuation and Qualifying Accounts
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995677 - Disclosure - Significant Accounting Policies (Policies)
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995687 - Disclosure - Significant Accounting Policies (Tables)
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995697 - Disclosure - Segment Information (Tables)
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link:calculationLink
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995707 - Disclosure - Revenue Recognition (Tables)
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995717 - Disclosure - Restructuring Charges (Tables)
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995727 - Disclosure - Other (Income) Expense, Net (Tables)
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link:calculationLink
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995737 - Disclosure - Income Tax Provision (Tables)
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link:calculationLink
link:definitionLink
995747 - Disclosure - Earnings (Loss) Per Share (Tables)
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link:calculationLink
link:definitionLink
995757 - Disclosure - Inventories (Tables)
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link:calculationLink
link:definitionLink
995767 - Disclosure - Property, Plant and Equipment (Tables)
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link:calculationLink
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995777 - Disclosure - Intangible Assets (Tables)
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link:calculationLink
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995787 - Disclosure - Leases (Tables)
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link:calculationLink
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995797 - Disclosure - Financing Arrangements (Tables)
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link:calculationLink
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995807 - Disclosure - Retirement and Postretirement Plans (Tables)
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link:calculationLink
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995817 - Disclosure - Stock-Based Compensation (Tables)
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link:calculationLink
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995827 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)
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link:calculationLink
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995837 - Disclosure - Selected Quarterly Financial Data (Unaudited) (Tables)
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link:calculationLink
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995847 - Disclosure - Basis of Presentation - Narrative (Details)
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995857 - Disclosure - Significant Accounting Policies - Narrative (Details)
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995867 - Disclosure - Segment Information - Narrative (Details)
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995877 - Disclosure - Segment Information (Details)
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995887 - Disclosure - Revenue Recognition (Details)
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link:calculationLink
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995897 - Disclosure - Revenue Recognition - Narrative (Details)
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link:calculationLink
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995907 - Disclosure - Restructuring Charges - Narrative (Details)
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link:calculationLink
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995917 - Disclosure - Restructuring Charges - Schedule of Restructuring Reserve (Details)
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995927 - Disclosure - Other (Income) Expense, Net - Schedule of Other (Income) Expense, Net (Details)
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995937 - Disclosure - Other (Income) Expense, Net - Narrative (Details)
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995947 - Disclosure - Income Tax Provision - Income from Operations Before Income Taxes Based on Geographic Location of Operations (Details)
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link:calculationLink
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995957 - Disclosure - Income Tax Provision - (Benefit) Provision for Income Taxes (Details)
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995967 - Disclosure - Income Tax Provision - Narrative (Details)
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995977 - Disclosure - Income Tax Provision - Reconciliation Between Effective Tax Rate and Statutory Rate (Details)
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link:calculationLink
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995987 - Disclosure - Income Tax Provision - Schedule Of Income Taxes Paid Net Of Refunds (Details)
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link:calculationLink
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995997 - Disclosure - Income Tax Provision - Effect of Temporary Differences Giving Rise to Deferred Tax Assets and Liabilities (Details)
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link:calculationLink
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996007 - Disclosure - Earnings (Loss) Per Share - Additional Information (Details)
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link:calculationLink
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996017 - Disclosure - Earnings (Loss) Per Share - Schedule of Earnings Per Share (Details)
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link:calculationLink
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996027 - Disclosure - Inventories - Schedule of Inventory (Details)
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996037 - Disclosure - Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details)
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996047 - Disclosure - Property, Plant and Equipment - Narrative (Details)
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996057 - Disclosure - Property, Plant and Equipment - Schedule of Supplemental Cash Flow Information Related to Non-Cash Investing Activity (Details)
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996067 - Disclosure - Intangible Assets - Schedule of Intangible Assets (Details)
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996077 - Disclosure - Intangible Assets - Estimated Annual Amortization Expense (Details)
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996087 - Disclosure - Leases - Narrative (Details)
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996097 - Disclosure - Leases - Schedule of Components of Operating and Finance Lease Cost (Details)
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996107 - Disclosure - Leases - Supplemental Cash Flow Information (Details)
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996117 - Disclosure - Leases - Future Minimum Lease Payments (Details)
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996127 - Disclosure - Leases - Future Minimum Lease Payments (Details) 2
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996137 - Disclosure - Leases - Future Minimum Lease Payments (Details) 3
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996147 - Disclosure - Leases - Future Minimum Lease Payments (Details) 4
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996157 - Disclosure - Financing Arrangements - Narrative (Details)
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996167 - Disclosure - Financing Arrangements - Schedule of Components of Interest (Income) Expense (Details)
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996177 - Disclosure - Retirement and Postretirement Plans - Narrative (Details)
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996187 - Disclosure - Retirement and Postretirement Plans - Change in Benefit Obligations (Details)
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996197 - Disclosure - Retirement and Postretirement Plans - Change in Plan Assets (Details)
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996207 - Disclosure - Retirement and Postretirement Plans - Amounts Recognized in the Balance Sheet (Details)
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996217 - Disclosure - Retirement and Postretirement Plans - Amounts Recognized in Accumulated Other Comprehensive Income (Loss) (Details)
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996227 - Disclosure - Retirement and Postretirement Plans - Weighted Average Assumptions (Details)
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996237 - Disclosure - Retirement and Postretirement Plans - Components of Net Periodic Benefit Cost (Details)
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996247 - Disclosure - Retirement and Postretirement Plans - Schedule of Target Allocations for each Plan's Assets (Details)
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996257 - Disclosure - Retirement and Postretirement Plans - Allocation of Plan Assets (Details)
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996267 - Disclosure - Retirement and Postretirement Plans - Summary of Changes in the Fair Value of Pension Plan Level Three Assets (Details)
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996277 - Disclosure - Retirement and Postretirement Plans - Benefit Payments (Details)
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996287 - Disclosure - Stock-Based Compensation - Narrative (Details)
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996297 - Disclosure - Stock-Based Compensation - Stock Option Activity (Details)
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996307 - Disclosure - Stock-Based Compensation - Schedule of Time-Based Restricted Stock Unit Activity (Details)
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996317 - Disclosure - Stock-Based Compensation - Schedule of Performance-Based Restricted Stock Unit Activity (Details)
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996327 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) (Details)
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996337 - Disclosure - Schedule II - Valuation and Qualifying Accounts (Details)
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996347 - Disclosure - Subsequent Events - Narrative (Details)
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Fixed Income Funds [Member]
Mutual fund - fixed income
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Vested (in USD per share)
Schedule of Supplemental Cash Flow Information Related to Non-Cash Investing Activity
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]
Property, Plant and Equipment, and Finance Lease Obligations [Policy Text Block]
Property, plant and equipment, and finance lease obligations.
Property, Plant and Equipment, and Finance Lease Obligations, Net
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price
Canceled, forfeited or expired (in USD per share)
Proceeds from Sale of Property, Plant, and Equipment
Proceeds from Sale of Property, Plant, and Equipment, Total
Proceeds from sale, down payment
Proceeds from sale or disposals of property, plant and equipment
Retirement Plan Type [Axis]
Retirement Plan Type
Income (Loss) from Continuing Operations before Income Taxes, Foreign
Non-United States
Restructuring Reserve
Restructuring Reserve, Ending Balance
Restructuring Reserve, Beginning Balance
Restructuring Reserve, Total
Number of consecutive trading days
Number Of Consecutive Trading Days
Number of consecutive trading days.
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Schedule Of Revenues From External Customers And Long Lived Assets [Table]
Total present value of lease payments
Finance Lease, Liability
Finance Lease, Liability, Total
Retroactive wage reimbursement
Retroactive Wage Reimbursement
Retroactive wage reimbursement.
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Finance Lease, Liability, to be Paid, Year Four
2029
Preferred Stock, Shares Issued
Preferred shares, issued (in shares)
Preferred Stock, Shares Issued, Total
Defined Benefit Plan, Plan Assets, Contributions by Employer
Company contributions / payments
Company contributions to plans
Gain loss on total recovery.
Gain Loss on Total Recovery
Total recovery
Increase (Decrease) in Accounts Payable
Accounts payable
Increase (Decrease) in Accounts Payable, Total
Revision of Prior Period [Axis]
Plan Name [Axis]
Plan Name
Entity Current Reporting Status
Entity Current Reporting Status
OCI, before Reclassifications, before Tax, Attributable to Parent
Other comprehensive income before reclassifications, before income tax
Fair Value, Inputs, Level 2 [Member]
Level 2
Deferred Tax Assets, Net of Valuation Allowance
Deferred tax assets
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted Average Exercise Price
Commitments and Contingencies Disclosure [Text Block]
Contingencies
Common Stock, Shares Authorized
Common shares, authorized (in shares)
2027
Finite-Lived Intangible Asset, Expected Amortization, Year Four
Product and Service [Axis]
Product and Service
Document Fiscal Period Focus
Document Fiscal Period Focus
Finance Lease, Liability, to be Paid
Total future minimum lease payments
Defined Benefit Plan, Expected Future Benefit Payment, after Year Five for Next Five Years
2031-2035
Expected contributions and payments from 2027 through 2035
Liability, Defined Benefit Plan, Current
Accrued pension and postretirement costs
Current liabilities
Debt Instrument, Interest Rate, Stated Percentage
Debt instrument, interest rate, stated percentage
Accounting Standards Update 2023-09 [Member]
ASU 2023-09
Revenue from Contract with Customer [Abstract]
Entity Shell Company
Entity Shell Company
Other Accrued Liabilities, Current
Other current liabilities
Inventory, Gross
Gross inventory
SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis]
SEC Schedule, 12-09, Valuation Allowances and Reserves Type
Convertible Debt [Member]
Convertible Notes
Cash and Cash Equivalent
Cash and cash equivalents
Cash and Cash Equivalents, at Carrying Value, Total
Cash and Cash Equivalents, at Carrying Value, Beginning Balance
Cash and Cash Equivalents, at Carrying Value, Ending Balance
SEC Schedule, 12-09, Reserve, Inventory [Member]
Allowance for Inventory Reserves
Defined Benefit Plan, Benefit Obligation
Benefit obligation at the end of year
Benefit obligation at the beginning of year
Defined Benefit Plan, Expected Future Benefit Payment, Year Two
2027
Cybersecurity Risk Management, Strategy, and Governance [Abstract]
Common Stock, Shares, Issued
Common shares, issued (in shares)
Common Stock, Shares, Issued, Total
Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag]
Cybersecurity Risk Board of Directors Oversight [Text Block]
Foreign Plan [Member]
Foreign Pension Plan
Statement [Table]
Statement [Table]
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
Right-of-use assets obtained in exchange for operating lease obligations
Increase (Decrease) in Prepaid Expense
Deferred charges and prepaid expenses
Schedule of Amounts Recognized in Balance Sheet [Table Text Block]
Schedule of Amounts Recognized in Balance Sheet
Statement [Line Items]
Statement [Line Items]
Treasury Stock, Value, Acquired, Cost Method
Shares surrendered for taxes
Revenue from Contract with Customer [Policy Text Block]
Revenue Recognition
Entity Filer Category
Entity Filer Category
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Number of Shares
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement
Net remeasurement losses (gains)
Settlement gain
Liabilities and Equity
Total Liabilities and Shareholders’ Equity
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price
Options exercisable, weighted average exercise price (in USD per share)
Long-Lived Tangible Asset [Axis]
Long-Lived Tangible Asset
Finance Lease, Liability, to be Paid, Year Three
2028
Operating Loss Carryforwards [Table]
Operating Loss Carryforwards [Table]
Cybersecurity Risk Third Party Oversight and Identification Processes [Flag]
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase (Decrease) for Assets Transferred into (out of) Level 3
Transfers in and/or out of Level 3
Quarterly Financial Information Disclosure [Abstract]
Deferred Tax Assets, Valuation Allowance
Valuation allowances
Deferred Tax Assets, Valuation Allowance, Total
U.S. federal income tax provision (benefit) at statutory rate , Percentage
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent
Subsequent Event [Line Items]
Cybersecurity Risk Management Third Party Engaged [Flag]
Documents Incorporated by Reference [Text Block]
Documents Incorporated by Reference
Effective Income Tax Rate Reconciliation, Percent
Effective tax rate, Percent, Total
Income Taxes Paid
Income Taxes Paid
Convertible Debt Securities [Member]
Convertible Notes
Investment Income, Interest
Interest income
Income Tax Jurisdiction [Axis]
Income Tax Authority
Geographical [Domain]
Geographical
Nicholas A. Yacobozz [Member]
Nicholas A. Yacobozz [Member]
Nicholas A. Yacobozz
Inventory, Finished Goods, Gross
Finished products
Inventory, Finished Goods, Gross, Total
Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block]
Cash Equivalents and Restricted Cash
Performance-based restricted stock units.
Performance Based Restricted Stock Units [Member]
Performance-Based Restricted Stock Units
Contract liabalities totalated.
Contract liabalities totalated
Contract liabilities totalated
SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]
Schedule II-Valuation and Qualifying Accounts
Schedule of Inventory, Current [Table Text Block]
Schedule of Components of Inventory
Accounts Receivable, Allowance for Credit Loss
Allowances for accounts receivable
Accounts Receivable, Allowance for Credit Loss, Ending Balance
Accounts Receivable, Allowance for Credit Loss, Beginning Balance
Additional Paid in Capital, Common Stock
Additional paid-in capital
Additional Paid in Capital, Common Stock, Beginning Balance
Additional Paid in Capital, Common Stock, Ending Balance
Future stock-based compensation expense
Future Allocated Share Based Compensation Expense
Future allocated share based compensation expense.
Defined Benefit Plan, Plan Assets, Benefits Paid
Benefits paid
Convertible notes repurchased outstanding principal amount.
Convertible Notes Repurchased Outstanding Principal Amount
Convertible notes repurchased outstanding principal amount
Pension and Other Postretirement Benefits Expense (Reversal of Expense), Noncash, Excluding Mark-to-Market Adjustments.
Pension And Other Postretirement Benefits Expense Reversal Of Expense Noncash Excluding Mark To Market Adjustments
Pension and postretirement (benefit) expense, net
Kristine C. Syrvalin [Member]
Kristine C. Syrvalin.
Kristine C. Syrvalin
Stock options granted
Granted (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross
Disaggregation of Revenue [Table]
Disaggregation Of Revenue [Table]
Cybersecurity Risk Management, Strategy, and Governance [Table]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule of Earnings (Loss) Per Share, Basic and Diluted
Increase (Decrease) in Other Operating Assets and Liabilities, Net
Other, net
Increase (Decrease) in Other Operating Assets and Liabilities, Net, Total
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense
Charged to Costs and Expenses
AOCI Attributable to Parent, Net of Tax [Roll Forward]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Share-Based Payment Arrangement [Member]
Equity-based Awards
Earnings Per Share, Basic
Basic earnings (loss) per share
Earnings Per Share, Basic, Total
Basic earnings (loss) per share
Disaggregation of Revenue [Table Text Block]
Disaggregation of Revenue
Retirement Benefits [Text Block]
Retirement and Postretirement Plans
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
Discount rate
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Foreign currency translation adjustments
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total
Lessee, operating lease liability payments due after year four.
Lessee Operating Lease Liability Payments Due After Year Four
2030 and after
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number
Ending balance (in shares)
Beginning balance (in shares)
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property
Impairment charges and gain (loss) on sale
Revolving Credit Facility [Member]
Credit Agreement
Retirement Plan Type [Domain]
Retirement Plan Type
Liabilities, Current
Total Current Liabilities
Increase (Decrease) in Accounts Receivable
Accounts receivable, net
Adjustments to reconcile net income (loss) to net cash provided (used) by operating activities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from External Customers and Long-Lived Assets [Line Items]
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax
Unrecognized prior service (benefit) cost
Federal
Income Tax Paid, Federal, after Refund Received
Income Tax Paid, Federal, after Refund Received, Total
Domestic Tax Jurisdiction [Member]
U.S.
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction
Deductions
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Allowance for Uncollectible Accounts
Effective Income Tax Rate Reconciliation [Table]
Accounting Standards Update [Axis]
Accounting Standards Update
Fourth amended credit facility member.
Fourth Amended Credit Facility [Member]
Fourth Amended Credit Facility
Cash Held In Other Investments
Cash Held In Other Investments
Cash held in other investments.
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits
Other employee benefit accruals
Equity, Attributable to Parent [Abstract]
Shareholders’ Equity
Gain on plan asset annuitization
Pension Cost and Other Postretirement Benefits Cost Plan Gain on Annuitization
Pension cost and other postretirement benefits cost plan gain on annuitization.
Entity Small Business
Entity Small Business
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Increase (Decrease) in Accrued Liabilities
Other accrued expenses
Increase (Decrease) in Accrued Liabilities, Total
Retained deficit
Retained Earnings (Accumulated Deficit)
Retained deficit
Retained Earnings (Accumulated Deficit), Beginning Balance
Retained Earnings (Accumulated Deficit), Ending Balance
Retained Earnings (Accumulated Deficit), Total
Defined Benefit Plan, Funded (Unfunded) Status of Plan, Total
Defined Benefit Plan, Funded (Unfunded) Status of Plan
Funded status at end of year
Government Assistance, Liability, Increase, Statement of Financial Position [Extensible Enumeration]
Entity Well-known Seasoned Issuer
Entity Well-known Seasoned Issuer
Current Foreign Tax Expense (Benefit)
Foreign
Share-Based Payment Arrangement [Text Block]
Stock-Based Compensation
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Dilutive effect of convertible notes (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Debt Securities
Incremental Common Shares Attributable to Conversion of Debt Securities, Total
Leases [Abstract]
Inventory Valuation Reserves
Inventory valuation reserves
Allowance for inventory reserves
Inventory Valuation Reserves, Beginning Balance
Inventory Valuation Reserves, Ending Balance
Lessee, Lease, Description [Line Items]
Lessee, Lease, Description [Line Items]
Amendment Flag
Amendment Flag
Product and Service [Domain]
Product and Service
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount
U.S. federal income tax provision (benefit) at statutory rate
Inventory Disclosure [Text Block]
Inventories
Non-employee director.
Non Employee Director [Member]
Non-employee Director
Finance Lease, Interest Expense
Interest on lease liabilities
Kristopher R. Westbrooks [Member]
Kristopher R. Westbrooks.
Kristopher R. Westbrooks
Liabilities and Equity [Abstract]
LIABILITIES AND SHAREHOLDERS’ EQUITY
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Net Cash Provided (Used) by Operating Activities
Line of Credit Facility, Tentative Future Commitment Increase
Lineof Credit Facility Tentative Future Commitment Increase
Line of credit facility, tentative future commitment increase
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description
Common Stock [Member]
Common Shares
Defined Benefit Plan, Accumulated Benefit Obligation
Accumulated benefit obligation
Accounting Standards Update and Change in Accounting Principle [Table]
New Accounting Pronouncements Or Change In Accounting Principle [Table]
Other Products [Member]
Other Products [Member]
Other
Cybersecurity Risk Role of Management [Text Block]
Increase in liability
Increase In Liability Due To Reversal Of Cost Remeasurement
Increase in liability due to reversal of cost remeasurement.
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price
Granted (in USD per share)
Assets for Plan Benefits, Defined Benefit Plan
Pension assets
Non-current assets
Lessee, Operating Lease, Liability, to be Paid, Year Three
2028
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Less allowances for depreciation
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Total
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Beginning Balance
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment, Ending Balance
Annual Shipment Capacity
Annual Shipment Capacity
Annual Shipment Capacity
Accounting Standards Update 2024-03 [Member]
ASU 2024-03
Income Tax Paid, by Individual Jurisdiction [Line Items]
First In, Last Out (FILO) [Member]
First In Last Out F I L O [Member]
First In, Last Out (FILO)
Entity Address, Address Line One
Entity Address, Address Line One
Deferred Tax Liabilities, Gross
Deferred tax liabilities
Deferred Tax Liabilities, Gross, Total
Fair Value Hierarchy and NAV [Axis]
Fair Value Hierarchy and NAV
Debt Instrument, threshold Percentage of stock price conversion
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger
Earnings Per Share [Abstract]
Per Share Data:
Income Tax, Policy [Policy Text Block]
Income Taxes
Coronavirus Aid Relief And Economic Security Act
Coronavirus Aid Relief And Economic Security Act [Member]
Coronavirus aid, relief, and economic security act.
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag]
Loss Contingency Accrual, Disclosures [Abstract]
Defined Benefit Plan, Expected Future Benefit Payment, Year Four
2029
Deferred Tax Assets, State Taxes
State decoupling
Operating Lease, Right-of-Use Asset
Operating lease right-of-use assets
Finance Lease, Liability, Undiscounted Excess Amount
Less amount of lease payment representing interest
Defined Benefit Plan, Plan Assets, Category [Domain]
Defined Benefit Plan, Plan Assets, Category
Convertible Senior Notes due Twenty Twenty Five [Member]
Convertible Senior Notes Due Twenty Twenty Five [Member]
Convertible Senior Notes due 2025
Deferred Tax Assets, Gross
Deferred tax assets subtotal
Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block]
Inventory Disclosure [Abstract]
Withholding taxes paid for cash repatriation.
Withholding Taxes Paid For Cash Repatriation
Withholding taxes paid for cash repatriation
Land
Land
Document Type
Document Type
Income Taxes Paid, Net
Cash taxes paid and (refunded)
Total income tax payments (refunds)
Gross Profit
Gross profit
Gross Profit
Add convertible notes interest
Interest on Convertible Debt, Net of Tax
Entity Central Index Key
Entity Central Index Key
Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block]
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Increase (Decrease) in Cash, Cash Equivalents, and Restricted Cash
Subsequent Event Type [Domain]
Subsequent Event Type
Antidilutive securities excluded from calculation of computation of diluted earnings (loss) per share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Antidilutive securities excluded from calculation
Stock Repurchased, Shares
Stock Repurchased and Retired During Period, Shares
Debt Instrument, Convertible, Amounts by Which Instrument Can Be Converted
Debt Instrument Convertible Amountsby Which Instrument Can Be Converted
Debt instrument, convertible, amounts by which instrument can be converted
Impairment of Long-Lived Assets to be Disposed of
Impairment charges recognized
Money Market Funds, at Carrying Value
Money market investment carrying value
Accounting Standards Update [Domain]
Accounting Standards Update
Other comprehensive income (loss), net of tax
Other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term
Outstanding, weighted average remaining contractual term
Retirement Plan Sponsor Location [Domain]
Retirement Plan Sponsor Location
Treasury stock value acquired.
Treasury Stock, Value, Acquired
Purchase of treasury shares, including excise tax
Purchase of treasury shares, including excise tax
Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss)
Foreign currency translation adjustment
Document Financial Statement Error Correction [Flag]
Document Financial Statement Error Correction [Flag]
Schedule of Costs of Retirement Plans [Table Text Block]
Schedule of Periodic Benefit Cost
Exercised (in shares)
Stock options activity (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period
Debt Disclosure [Abstract]
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table]
Defined Benefit Plans And Other Postretirement Benefit Plans Disclosures [Table]
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Foreign Currency Translation Adjustments
Deferred tax assets leasing arrangements.
Deferred Tax Assets Leasing Arrangements
Lease liability
Supplemental Cash Flow Elements [Abstract]
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Total
Tax effect
Other comprehensive income (loss), income tax benefit (provision)
Other comprehensive income (loss), income tax benefit (provision)
Tax effect
Supplemental Plan
Supplemental Pension Plan Of TimkenSteel Corporation [Member]
Supplemental pension plan of TimkenSteel corporation.
Current Fiscal Year End Date
Current Fiscal Year End Date
Actual return on plan assets
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss)
Actual return on plan assets
Schedule of Long-Term Debt Instruments [Table]
Debt Instrument [Table]
OHIO
Canton, ohio
Long-Lived Assets by Geographic Areas [Table Text Block]
Long-lived Assets by Geographic Areas
Defined Benefit Plan of Recognized Loss
Defined benefit plan of recognized loss.
Defined benefit plan of recognized loss
Convertible Notes Payable
Convertible Notes Payable, Total
Outstanding convertible notes
Customer Relationships [Member]
Customer relationships
Entity Address, State or Province
Entity Address, State or Province
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Ending balance (in shares)
Beginning balance (in shares)
Number of shares
Debt Instrument, threshold consecutive trading days
Debt Instrument, Convertible, Threshold Consecutive Trading Days
Transaction costs, debt gross
Debt Issuance Costs, Gross
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive Income (Loss), net of tax
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Disposition of Non-Core Assets
Defined Benefit Plan, Cash and Cash Equivalents [Member]
Cash and cash equivalents
Dilutive effect of equity-based awards (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements
Incremental Common Shares Attributable to Share-based Payment Arrangements, Total
Defined Benefit Plan, Assumptions [Table Text Block]
Schedule of Assumptions Used
Geographical [Axis]
Geographical
Kristopher R. Westbrooks Trading Arrangement Common Sale [Member]
Kristopher R. Westbrooks Trading Arrangement Common Sale.
Kristopher R. Westbrooks Trading Arrangement Common Sale [Member]
Inventory, Raw Materials, Gross
Raw materials
Inventory, Raw Materials, Gross, Total
Accounts Payable, Trade, Current
Accounts payable
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount
State and local income taxes, net of federal tax benefit , Amount
Stock Issued During Period, Value, Stock Options Exercised
Stock option activity
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
Schedule of Deferred Tax Assets and Liabilities
Increase (Decrease) in Deferred Income Taxes
Deferred income taxes
Benefit plan terminated effective date
Defined Benefit Plan Terminated Effective Date
Defined benefit plan terminated effective date.
Other Postretirement Benefits Plan [Member]
Postretirement
Subsequent Event [Member]
Subsequent Event
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Change Due to Subsequent Interim Measurement, Weighted-Average Expected Long-Term Rate of Return on Plan Assets
Expected long-term return on plan assets
Property, Plant and Equipment [Abstract]
Interest Expense, Operating
Interest Expense, Operating, Total
Interest expense
Shares available for grant (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized
Other Assets, Noncurrent
Other non-current assets
Other Assets, Noncurrent, Total
Antidilutive Securities [Axis]
Antidilutive Securities
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards [Line Items]
Debt instrument interest payment dates description.
Debt Instrument Interest Payment Dates Description
Debt instrument interest payment dates description
Vesting Percentage
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage
Basis of Presentation and Significant Accounting Policies [Text Block]
Basis of Presentation
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value
Options expected to vest, aggregate intrinsic value
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]
Intangible Assets, Net
Incremental common shares attributable to share based payment arrangements shares assumed purchased with potential proceeds.
Incremental Common Shares Attributable To Share Based Payment Arrangements Shares Assumed Purchased With Potential Proceeds
Shares assumed purchased with potential proceeds
Income Tax Paid, Foreign, after Refund Received
Income Tax Paid, Foreign, after Refund Received, Total
Foreign
Final cash payment of interest made to noteholders
Interest Expense, Debt
Total
Interest expense on debt
Sales
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Decrease for Sale
Sales
State
State and Local
State and Local Jurisdiction [Member]
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss)
Customer [Domain]
Customer
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name
Treasury Stock, Common, Shares
Treasury shares
Pension Plan
Mexico Pension Plan [Member]
Mexico pension plan.
Stock Issued During Period, Shares, Treasury Stock Reissued
Issuance of treasury shares (in shares)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred Stock, Value, Issued
Preferred shares, without par value; authorized 10.0 million shares, none issued
Preferred Stock, Value, Issued, Total
Preferred Stock, Value, Issued, Beginning Balance
Preferred Stock, Value, Issued, Ending Balance
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]
Deferred:
Selling, General and Administrative Expense
Selling, general and administrative expenses
Selling, General and Administrative Expense, Total
Debt Instrument, Maturity Date
Maturity date
Defined Benefit Plan, Equity Securities [Member]
Equity securities
Decrease in liability
Decrease in Liability Due To Reversal Of Cost Remeasurement
Decrease in Liability Due To Reversal Of Cost Remeasurement
Kevin A. Raketich Trading Arrangement Common Sale [Member]
Kevin A. Raketich Trading Arrangement Common Sale.
Kevin A. Raketich Trading Arrangement Common Sale [Member]
Minimum [Member]
Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Granted (in USD per share)
Time-based restricted stock units.
Time Based Restricted Stock Units [Member]
Time-Based Restricted Stock Units
Number of trading days to calculate average closing stock price.
Number Of Trading Days To Calculate Average Closing Stock Price
Number of trading days to calculate average closing stock price
Assets, Current [Abstract]
Current Assets
Quarterly Financial Information [Text Block]
Selected Quarterly Financial Data (Unaudited)
Amortization of Intangible Assets
Amortization expense for intangible assets
Amortization of Intangible Assets, Total
Fair Value, Inputs, Level 3 [Member]
Level 3
Capital loss carryforward
Deferred tax assets capital loss carryforward
Deferred tax assets capital loss carryforward.
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Benefit Cost
Business Insurance Recoveries [Table]
Segment Reporting [Abstract]
Deferred Tax Liabilities, Property, Plant and Equipment
Depreciation
Employee Benefit Plan, Real Estate [Member]
Real estate
Liabilities, Current [Abstract]
Current Liabilities
Defined benefit plan private debt.
Defined Benefit Plan Private Debt [Member]
Private debt
Restructuring and Related Activities Disclosure [Text Block]
Restructuring Charges
Pension and Postretirement Plans
Pension and Postretirement Plans [Member]
Pension and postretirement plans.
Pension Cost and Other Postretirement Benefits Cost (Reversal of Cost), Excluding Service Component
Pension Costand Other Postretirement Benefits Cost Reversalof Cost Excluding Service Component
Pension and postretirement non-service benefit (income) loss
Pension and postretirement non-service benefit (income) loss
Shares, Outstanding
Ending balance (in shares)
Beginning balance (in shares)
Long-term contract adjustments
Deferred Tax Liabilities Long Term Contract Adjustments
Deferred tax liabilities long term contract adjustments.
Defined Benefit Plan, Plan Assets, Allocation [Table]
Operating Loss Carryforwards
Operating Loss Carryforwards
Operating Loss Carryforwards, Total
Accounts Receivable, after Allowance for Credit Loss, Current
Accounts Receivable, after Allowance for Credit Loss, Current, Total
Accounts receivable, net of allowances (2025 - $1.8 million; 2024 - $1.7 million)
Interest Expense, Operating and Nonoperating [Abstract]
Lessee, Operating Lease, Renewal Term
Extension term
Income Tax Paid, by Individual Jurisdiction [Abstract]
Defined Benefit Pension Plan Surplus
Defined benefit pension plan surplus.
Company contributions / payments
SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain]
SEC Schedule, 12-09, Valuation Allowances and Reserves
Defined Benefit Plan, Service Cost
Service cost
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Ending balance (in USD per share)
Beginning balance (in USD per share)
Weighted average grant date fair value
Inventory, Work in Process, Gross
Work in process
Operating Lease, Liability
Total present value of lease payments
Operating Lease, Liability, Total
Auditor Firm ID
Debt Instrument, Basis Spread on Variable Rate
Variable interest rate, spread
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Proceeds from government funding
Proceeds from Government Funding
Proceeds from government funding.
Forecast [Member]
Scenario Forecast
Investment Gains On Plan Assets
Investment gains on plan assets
Investment gains on plan assets
Statutory Accounting Practices [Line Items]
Statutory Accounting Practices [Line Items]
Stock Issued During Period, Value, Treasury Stock Reissued
Issuance of treasury shares
Finance Lease, Liability, Current
Current finance lease liabilities
Lessee, Lease, Description [Table]
Lessee Lease Description [Table]
Finance Lease, Weighted Average Discount Rate, Percent
Weighted average discount rate used to measure financing lease liabilities
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent
Changes in Valuation Allowance , Percentage
Liabilities, Noncurrent [Abstract]
Non-Current Liabilities
Share-based compensation, full value award limit
Share-based Compensation Arrangement by Share-based Payment Award Full Value Award Limit
Share-based compensation arrangement by share-based payment award full value award limit.
Schedule of Restructuring Reserve by Type of Cost [Table Text Block]
Schedule of Restructuring Reserve
Interest Income (Expense), Net, Total
Interest Income (Expense), Operating
Interest (income) expense, net
Interest (income) expense, net
Accrued property, plant and equipment purchases
Capital Expenditures Incurred but Not yet Paid
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount
Excess Compensation , Amount
Long-Term Debt, Type [Domain]
Long-term Debt, Type
Cybersecurity Risk Management Positions or Committees Responsible [Text Block]
Weighted average shares outstanding, basic (in shares)
Weighted Average Number of Shares Outstanding, Basic
Weighted Average Number of Shares Outstanding, Basic, Total
Foreign Tax Payments.
Foreign Tax Payments
Foreign tax payments
Revenue from External Customers by Geographic Areas [Table Text Block]
Revenue from External Customers by Geographic Areas
Sales and use tax refund
Sales and use tax refund.
Sales And Use Tax Refund
Sales and use tax refund
Government Assistance [Policy Text Block]
Government Funding
Scenario [Axis]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value
Options exercisable, aggregate intrinsic value
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Change in plan assets:
Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Percent
Excess Compensation, Percentage
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
Schedule of Effective Income Tax Rate Reconciliation
Deferred Tax Liabilities, Leasing Arrangements
Leases - right-of-use asset
Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]
Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table]
Fair Value Measured at Net Asset Value Per Share [Member]
Assets measured at net asset value
Long-Lived Tangible Asset [Domain]
Long-Lived Tangible Asset
Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block]
Subsequent Events [Text Block]
Subsequent Events
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Level 1, 2 and 3
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
Stock-based compensation expense
APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total
Variable Rate [Domain]
Variable Rate
Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss)
Actuarial (gains) losses
Non cash gain (loss)
Deferred Tax Asset, In-Process Research and Development
Capitalized R&D
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount
Valuation allowance , Amount
Beginning balance
Equity, Attributable to Parent
Ending balance
Total Shareholders’ Equity
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Curtailment
Curtailments
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year
Anticipated contribution during the year
Interest Income and Interest Expense Disclosure [Table Text Block]
Schedule of Interest (income) Expense
Lessee, Operating Lease, Existence of Option to Extend [true false]
Lessee, operating lease, option to extend
Statement of Stockholders' Equity [Abstract]
Government Assistance, Liability, Increase
Government Assistance, Liability, Increase, Total
Government fund received
Number of Financing Leases
Number of financing leases.
Number of financing leases
Deferred Tax Liabilities, Inventory
Inventory
Salaried Plan
TimkenSteel Corporation Retirement Plan [Member]
TimkenSteel corporation retirement plan.
Accounts Receivables, Net
Credit Loss, Financial Instrument [Policy Text Block]
Treasury Shares
Treasury Stock, Common [Member]
Foreign currency exchange loss (gain)
Gain (Loss), Foreign Currency Transaction, before Tax
Foreign currency exchange loss (gain)
Foreign Currency Transaction Gain (Loss), before Tax, Total
United States of America
United States
US
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Pension and Postretirement Liability Adjustments
Michael S. Williams Trading Arrangement Common Sale [Member]
Michael S. Williams Trading Arrangement Common Sale.
Michael S. Williams Trading Arrangement Common Sale [Member]
Third Amended Credit Facility [Member]
Third Amended Credit Facility [Member]
Third Amended Credit Facility
Defined Benefit Plan, Plan Costs
Defined Benefit Plan Plan Costs
Retirement plan expenses
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward]
Number of Shares
Debt Instrument, Name [Domain]
Debt Instrument, Name
Other Assets, Current
Other current assets
Special Bar Quality Bars [Member]
Special Bar Quality Bars [Member]
Bar
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration]
Plan Name [Domain]
Plan Name
Building [Member]
Building
Credit Facility [Axis]
Credit Facility
Cost of Product and Service Sold
Cost of products sold
Cost of Goods and Services Sold, Total
Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block]
Current State and Local Tax Expense (Benefit)
State and local
State and local tax payments
Schedule of Expected Benefit Payments [Table Text Block]
Schedule of Expected Benefit Payments
Debt Instrument, Repaid, Principal
Company repaid principal amount
Cybersecurity Risk Management Expertise of Management Responsible [Text Block]
2026
Finance Lease, Liability, to be Paid, Year One
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights
Vesting rights description
Expected contributions and payments in next 12 months
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year
Treasury Stock, Value
Treasury Stock, Value, Total
Treasury Stock, Value, Beginning Balance
Treasury Stock, Value, Ending Balance
Treasury shares - 2025 - 6.5 million; 2024 - 5.9 million
Lessee, Operating Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Operating Leases
Dividends declared.
Dividends Declared
Dividends declared
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount
Other Reconciling Adjustment , Amount
Convertible Debt, Fair Value Disclosures
Fair value of convertible notes
Foreign Tax Jurisdiction [Member]
Foreign
United Kingdom
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Benefit Obligation
Pension Plan [Member]
Pension
Entity Address, City or Town
Entity Address, City or Town
Operating Loss Carryforwards, Valuation Allowance
Operating Loss Carryforwards, Valuation Allowance
Operating Loss Carryforwards, Valuation Allowance, Total
Number of Reportable Segments
Number of reportable segments
Security Exchange Name
Security Exchange Name
Defined benefit plan settlements related to partial annutization.
Defined Benefit Plan Settlements Related to Partial Annutization
Settlements
Defined benefit plan unrealized gain (loss).
Defined Benefit Plan Unrealized Gain (Loss)
Net unrealized gain (loss)
Credit Facility [Domain]
Credit Facility
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]
ASU 2025-10
Accounting Standards Update 2025-10 [Member]
Accounting Standards Update 2025-10.
Effective Income Tax Rate Reconciliation, Other Adjustments, Percent
Other Reconciling Adjustment , Percentage
Property, Plant and Equipment, Gross
Subtotal
Property, Plant and Equipment, Gross, Beginning Balance
Property, Plant and Equipment, Gross, Ending Balance
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current:
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]
Intangible Assets Disclosure [Text Block]
Intangible Assets
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Income (Loss) Before Income Taxes
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number
Options expected to vest, number of shares (in shares)
Technology-Based Intangible Assets [Member]
Technology use
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Impairment and Disposal of Long-lived Assets, Net
Impairment or Disposal of Long-Lived Assets, Including Intangible Assets, Policy [Policy Text Block]
Antidilutive Securities, Name [Domain]
Antidilutive Securities, Name
Retirement Plan Sponsor Location [Axis]
Retirement Plan Sponsor Location
Pension Scheme
TimkenSteel U.K. Pension Scheme [Member]
TimkenSteel U.K. pension scheme.
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Foreign Tax Effects , Percentage
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent, Total
Foreign Tax Effects , Percentage
Inventory
Inventory, Net
Inventories, net
Total inventories, net
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows
Total cash, cash equivalents, and restricted cash shown in the Consolidated Statements of Cash Flows
Cash, Cash Equivalents, and Restricted Cash at Beginning of Period
Cash, Cash Equivalents, and Restricted Cash at End of Period
Defined Benefit Plan, Investments Other than Debt or Equity Securities [Member]
Defined Benefit Plan Investments Otherthan Debtor Equity Securities [Member]
Other Investments
Statistical Measurement [Domain]
Statistical Measurement
Mexico
MEXICO
Assets, Current
Total Current Assets
Share-Based Payment Arrangement, Expense
Stock-based compensation expense
Document Period End Date
Document Period End Date
Other Income and Expenses [Abstract]
Government Assistance, Liability, Current
Government funding liabilities
Title and Position [Axis]
Title of Individual
Fair Value Hierarchy and NAV [Domain]
Fair Value Hierarchy and NAV
Defined Contribution Plan, Cost
Defined contribution plan cost
ICFR Auditor Attestation Flag
ICFR Auditor Attestation Flag
Undistributed Earnings of Foreign Subsidiaries
Undistributed Earnings of Foreign Subsidiaries
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number
Options exercisable, number of shares (in shares)
Defined Benefit Plan, Benefit Obligation, Benefits Paid
Benefits paid
Industrial
Industrial Market Sector [Member]
Industrial Market Sector [Member]
Statement of Financial Position [Abstract]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Cumulative Effect, Period of Adoption, Adjustment
Automotive
Automotive [Member]
Automotive [Member]
Antidilutive Security, Excluded EPS Calculation [Table]
Schedule Of Antidilutive Securities Excluded From Computation Of Earnings Per Share [Table]
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract]
Other comprehensive income (loss), net of benefit (provision) for income taxes of $(0.3) million in 2025, $0.1 million in 2024, and $(0.2) million in 2023:
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract]
Deferred Tax Liabilities, Net
Net deferred tax assets (liabilities)
Deferred Tax Liabilities, Net, Total
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Total current tax expense (benefit)
Current Income Tax Expense (Benefit)
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)
Cybersecurity Risk Management, Strategy, and Governance [Line Items]
Nicholas A. Yacobozzi [Member]
Nicholas A. Yacobozzi [Member]
Nicholas A. Yacobozzi
Finance Lease, Liability, to be Paid, Fiscal Year Maturity [Abstract]
Financing Leases
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation And Qualifying Accounts Disclosure [Line Items]
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Amount
Meals and Entertainment , Amount
Liabilities
Total Liabilities
Other Nonoperating Income and Expense [Text Block]
Other (Income) Expense, Net
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent
Amounts reclassified from accumulated other comprehensive income (loss), before income tax
Loss (gain) from remeasurement of benefit plans
Total gain from remeasurement of benefit plans
Pension Cost and Other Postretirement Benefits Cost (Reversal of Cost), Remeasurement
Pension Costand Other Postretirement Benefits Cost Reversalof Cost Remeasurement
Loss (gain) from remeasurement of benefit plans
(Gain) loss from remeasurement of benefit plans
Dividend declared and paid
Dividends
Dividends, Total
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount
Foreign Tax Effects , Amount
New Accounting Pronouncement or Change in Accounting Principle, Description
New accounting pronouncement description
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Expected return on plan assets
Lessee, Operating Lease, Liability, to be Paid, Year Two
2027
Restricted Cash, Total
Restricted Cash
Restricted Cash
Finance Lease, Right-of-Use Asset, Amortization
Amortization of right-of-use assets
Variable Rate [Axis]
Variable Rate
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount
Balance at End of Period
Balance at Beginning of Period
Finite-Lived Intangible Assets, Gross
Gross Carrying Amount
Finite-Lived Intangible Assets, Gross, Total
Illinois
ILLINOIS
Finite-Lived Intangible Asset, Weighted Average Remaining Useful Life
Finite Lived Intangible Asset Weighted Average Remaining Useful Life
Weighted average remaining useful life
Weighted average shares outstanding, diluted (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Weighted average shares outstanding, diluted
Securities Act File Number
Entity File Number
Domestic Plan [Member]
ASU 2023-07
Accounting Standards Update 2023-07 [Member]
Cover [Abstract]
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
Benefit Payments:
2030 and after
Finance Lease Liability Payments Due After Year Four
Finance lease liability payments due after year four.
Cumulative Effect, Period of Adoption [Axis]
Cumulative Effect, Period of Adoption
Prepaid Expense and Other Assets, Current
Deferred charges and prepaid expenses
Canceled, forfeited or expired (in shares)
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Canceled, forfeited or expired (in shares)
Scenario [Domain]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized
Number of shares authorized (in shares)
Number of Operating Segments
Number of operating segments
Segment Reporting Disclosure [Text Block]
Segment Information
Remaining Liabilities or Obligations Relates to Salaried Plan
Remaining liabilities or obligations relates to salaried plan.
Remaining liabilities or obligations relates to Salaried Plan
Defined benefit plan term of contract
Defined Benefit Plan Term Of Contract
Defined benefit plan term of contract.
Machinery and Equipment, Gross
Machinery and equipment
Machinery and Equipment, Gross, Total
Nonvested Restricted Stock Shares Activity
Nonvested Restricted Stock Shares Activity [Table Text Block]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table]
Valuation And Qualifying Accounts Disclosure [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period
Canceled, forfeited or expired (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Total
Defined Benefit Plan, Plan Assets, Redemption Period
Defined Benefit Plan Plan Assets Redemption Period
Redemption period
Subsequent Event [Table]
Deferred Tax Assets, Other
Other, net
Transformation Incentive Grant Program Activity
Transformation Incentive Grant Program Activity [Member]
Transformation incentive grant program activity.
Finite-Lived Intangible Assets, Net
Net Carrying Amount
Finite-Lived Intangible Assets, Net, Beginning Balance
Finite-Lived Intangible Assets, Net, Ending Balance
Debt Instrument, Convertible, Conversion Price
Debt instrument, convertible, conversion price
Gain (Loss) on Extinguishment of Debt
Loss on extinguishment of debt
Loss on extinguishment of debt
Loss on extinguishment of debt
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price
Options expected to vest, weighted average exercise price (in USD per share)
Restructuring Charges
Restructuring charges
Expenses
Restructuring Charges, Total
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]
Additional Information
Property, Plant and Equipment, Useful Life
Useful lives of property, plant and equipment, net
New Accounting Pronouncements, Policy [Policy Text Block]
Adoption of New Accounting Standards
Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block]
Future Lease Maturity
Energy Market Sector [Member]
Energy Market Sector [Member]
Energy
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Loss (gain) on sale or disposal of assets
Loss (gain) on sale or disposal of assets, net
Gain (Loss) on Disposition of Assets
Gain (Loss) on Disposition of Assets, Total
(Gain) loss on sale or disposal of assets, net
Convertible notes settlement (in shares)
Stock Issued During Period, Shares, Conversion of Convertible Securities
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period
Vesting period
Comprehensive Income (Loss) Note [Text Block]
Accumulated Other Comprehensive Income (Loss)
United States
Income (Loss) from Continuing Operations before Income Taxes, Domestic
Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract]
Depreciation
Depreciation
Depreciation, Total
Purchase of treasury shares, including excise tax (in Shares)
Treasury stock, share, acquired.
Treasury Stock, Share, Acquired
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax
Pension and postretirement liability adjustments
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total
Common Stock, Shares, Outstanding, Beginning Balance
Common Stock, Shares, Outstanding, Ending Balance
Common Stock, Shares, Outstanding
Common Stock, Shares outstanding
Operating Lease, Liability, Current
Current operating lease liabilities
Depreciation, Depletion and Amortization
Depreciation and amortization
Depreciation, Depletion and Amortization, Total
Government Assistance Capital Fundings
Government assistance capital fundings.
Government assistance capital fundings
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Amortization of prior service cost
Cybersecurity Risk Management Processes Integrated [Flag]
Document Transition Report
Document Transition Report
Impairment charges
Impairment charges
Asset Impairment Charges
Asset Impairment Charges, Total
Lessee, Operating Leases [Text Block]
Leases
Payments for Repurchase of Common Stock
Purchase of treasury shares
Purchase of treasury shares
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule of (Benefit) Provision for Income Taxes
Liability, Defined Benefit Plan, Noncurrent
Accrued pension and postretirement costs
Non-current liabilities
Liability, Defined Benefit Plan, Noncurrent, Total
Statement of Cash Flows [Abstract]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value
Annual Melt Capacity
Annual Melt Capacity
Annual Melt Capacity
Current Federal Tax Expense (Benefit)
Federal
Share-based Compensation, Stock Options, Activity
Share-Based Payment Arrangement, Option, Activity [Table Text Block]
TimkenSteel U.S. pension scheme member.
TimkenSteel U.S. Pension Scheme [Member]
U.S. Pension Scheme
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent
Stock Options, Percentage
Pension and Other Postretirement Plans, Policy [Policy Text Block]
Pension and Other Postretirement Benefits
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets [Line Items]
Earnings Per Share [Text Block]
Earnings (Loss) Per Share
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Unrecognized Tax Benefits that Would Impact Effective Tax Rate
Discontinued Operations and Disposal Groups [Abstract]
Computer Equipment [Member]
Computer Hardware and Software
Cybersecurity Risk Management Processes Integrated [Text Block]
Net income (loss), basic
Net Income (Loss)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value
Outstanding, aggregate intrinsic value
Outstanding, aggregate intrinsic value
Increase (Decrease) in Inventories
Inventories, net
Increase (Decrease) in Inventories, Total
Operating Lease, Cost
Operating lease cost
Payment for Pension and Other Postretirement Benefits
Pension and postretirement contributions and payments
Payment for Pension and Other Postretirement Benefits, Total
Kristine C. Syrvalin Trading Arrangement Common Sale [Member]
Kristine C. Syrvalin Trading Arrangement Common Sale.
Kristine C. Syrvalin Trading Arrangement Common Sale [Member]
Intangible Assets, Net (Excluding Goodwill)
Intangible assets, net
Intangible Assets, Net (Excluding Goodwill), Total
Operating Lease, Payments
Cash paid for amounts included in the measurement of operating lease liabilities
Assets [Abstract]
ASSETS
Amortization of deferred financing fees
Amortization of Debt Issuance Costs and Discounts
Amortization of Debt Issuance Costs and Discounts, Total
Restructuring and Related Activities [Abstract]
Document Fiscal Year Focus
Document Fiscal Year Focus
Convertible notes settlement
Convertible notes settlement
Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Schedule of Accumulated Other Comprehensive Income (Loss)
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Investing Activities
Retirement Benefits [Abstract]
Interest Paid, Including Capitalized Interest, Operating and Investing Activities
Interest paid
Interest Paid, Including Capitalized Interest, Operating and Investing Activities, Total
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]
Schedule of Income before Income Tax, Domestic and Foreign
Deferred Federal Income Tax Expense (Benefit)
Federal
2024
Finite-Lived Intangible Asset, Expected Amortization, Year One
Components of Deferred Tax Assets [Abstract]
Deferred tax assets:
Revision of Prior Period [Domain]
Extinguishment of Debt ,Percentage
Effective Income Tax Rate Reconciliation Deduction Extinguishment of Debt Percentage
Extinguishment of Debt.
Extinguishment of Debt ,Percentage
Other Market Sector [Member]
Other Market Sector [Member]
Other
Defined Benefit Plan, Debt Security [Member]
Debt Securities
Defined Benefit Plan, Plan Assets, Payment for Settlement
Settlements
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase
Future compensation assumption
Proceeds from Stock Options Exercised
Proceeds from exercise of stock options
Other Debt Obligations [Member]
Other
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Lessee, Operating Lease, Liability, to be Paid, Year One
2026
Net income (loss), basic
Net Income (Loss) Available to Common Stockholders, Basic
Net Income (Loss) Available to Common Stockholders, Basic, Total
Effective Income Tax Rate Reconciliation [Line Items]
Long-Term Line of Credit
Outstanding borrowings
Long-term Line of Credit, Total
Debt Instrument [Axis]
Debt Instrument
Defined Benefit Plan, Interest Cost
Interest cost
Share-Based Payment Arrangement [Abstract]
U.S Federal Payments.
U.S Federal Payments
U.S federal payments
Expected payments in next 12 months
Defined Benefit Plan, Expected Future Benefit Payment, Year One
2026
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Net Cash Provided (Used) by Investing Activities
Weighted average remaining lease term for finance leases
Finance Lease, Weighted Average Remaining Lease Term
Title of 12(b) Security
Title of 12(b) Security
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount
Stock Options , Amount
Share Repurchase Program, Remaining Authorized, Amount
Stock Repurchase Program, Remaining Amount
Income Tax Paid, by Individual Jurisdiction [Table]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
Canceled, forfeited or expired (in USD per share)
Income Tax Disclosure [Text Block]
Income Tax Provision
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Manufactured components.
Manufactured Components [Member]
Manufactured Components
Other Liabilities, Noncurrent
Other non-current liabilities
Other Liabilities, Noncurrent, Total
Finance Lease, Right-of-Use Asset, after Accumulated Amortization
Finance Lease, Right-of-Use Asset, after Accumulated Amortization, Total
Finance lease right-of-use assets
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Changes in operating assets and liabilities:
Property, Plant and Equipment [Table Text Block]
Schedule of Property, Plant and Equipment
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price
Ending balance (in USD per share)
Beginning balance (in USD per share)
Defined Benefit Plan, Plan Assets, Amount
Fair value of plan assets at end of year
Fair value of plan assets at the beginning of year
Total Assets
Defined Benefit Plan, Plan Assets, Amount, Total
Income Tax Disclosure [Abstract]
TimkenSteel twenty twenty plan.
Timken Steel Twenty Twenty Plan [Member]
TimkenSteel 2020 Plan
Effective Income Tax Rate Reconciliation Nondeductible Expense Lobbying Expenses Amount
Lobbying expenses.
Lobbying Expenses , Amount
Unrecognized Tax Benefits
Unrecognized Tax Benefits
Unrecognized Tax Benefits, Beginning Balance
Unrecognized Tax Benefits, Ending Balance
Additional Paid-in Capital [Member]
Additional Paid-in Capital
Investment Losses On Plan Assets
Investment Losses On Plan Assets
Investment losses on plan assets
United Kingdom
UNITED KINGDOM
U.K.
Share Repurchase Program, Authorized, Amount
Stock Repurchase Program, Amount
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Trading Symbol
Trading Symbol
Intangible Asset, Finite-Lived [Table]
Schedule Of Finite Lived Intangible Assets [Table]
Property, Plant and Equipment
Property, Plant and Equipment Disclosure [Text Block]
Open tax year
Open Tax Year
Subsequent Event Type [Axis]
Subsequent Event Type
Gain (Loss) on Sale of Insurance Block
Insurance recoveries
Insurance recoveries
Insurance recovery income
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Schedule of Finite-Lived Intangible Assets
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Financing Activities
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage
Line of credit facility, unused capacity, commitment fee percentage
Salaries wages and benefits current.
Salaries Wages And Benefits Current
Salaries, wages and benefits
Lessee, Operating Lease, Liability, to be Paid
Total future minimum lease payments
Schedule of Target Allocations for each Plan's Assets
Defined Benefit Plan, Plan Assets, Allocation [Table Text Block]
Non cash settlement related to bargaining plan.
Non Cash Settlement Related to Bargaining Plan
Non cash settlement related to bargaining plan
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Less amount of lease payment representing interest
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent
Research and Development Credit , Percentage
Research and Development Credit , Percentage
Increase Decreas in the Liability of Increase in the Discount Rate
Increase decreas in the liability of increase in the discount rate.
Offset amount in the decrease of liability
Equity Components [Axis]
Equity Components
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Change in benefit obligation:
Equity Component [Domain]
Equity Component
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement
Settlements
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement, Total
Defined benefit plan settlement
Goodwill and Intangible Assets Disclosure [Abstract]
State and Local Tax Jurisdiction, Other [Member]
All other states
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
Valuation Allowance on Deferred Tax Assets
Document Annual Report
Document Annual Report
MICHIGAN
Michigan
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase
Future compensation assumption
Machinery and Equipment [Member]
Machinery and Equipment
Customer [Axis]
Customer
Statutory Accounting Practice, Jurisdiction [Domain]
US Treasury and Government [Member]
U.S government and agency securities
Statement of Comprehensive Income [Abstract]
Seamless Mechanical Tubing [Member]
Seamless Mechanical Tubing [Member]
Tube
Deferred Tax Assets, Operating Loss Carryforwards, Domestic
Tax loss carryforwards
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Percent
Meals and Entertainment , Percentage
Maximum [Member]
Maximum [Member]
Debt Instrument, Convertible, Conversion Ratio
Debt instrument, convertible, conversion ratio
Statistical Measurement [Axis]
Statistical Measurement
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price
Exercised (in USD per share)
Finite-Lived Intangible Assets, Accumulated Amortization
Accumulated Amortization
Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss)
Foreign currency translation adjustment
Common Stock, Value, Issued
Common Stock, Value, Issued, Total
Common Stock, Value, Issued, Beginning Balance
Common Stock, Value, Issued, Ending Balance
Common shares, without par value; authorized 200.0 million shares; issued 2025 - 48.2 million shares; issued 2024 - 48.2 million shares
Net income (loss), diluted
Net income (loss), diluted
Net Income (Loss) Available to Common Stockholders, Diluted
Finance Lease, Principal Payments
Principal payments under finance lease obligations
Principal payments under finance lease obligations
Share-Based Payment Arrangement, Cash Used to Settle Award
Share-based compensation, maximum grant value
Schedule Of Income Taxes Paid Net Of Refunds
Schedule Of Income Taxes Paid Net Of Refunds [Table Text Block]
Schedule Of Income Taxes Paid Net Of Refunds.
Prepaid insurance
Prepaid insurance
Deferred Tax Liabilities, Prepaid Expenses
Convertible Notes Payable, Current
Current convertible notes, net
Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block]
Defined Benefit Plan, Plan Assets Level 3 Reconciliation, Increase for Purchase
Purchases
Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent
State and local income taxes, net of federal tax benefit ,Percentage
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Schedule of Estimated Annual Amortization Expense
Entity Public Float
Entity Public Float
Preferred Stock, Shares Authorized
Preferred shares, authorized (in shares)
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class
Payment, Tax Withholding, Share-Based Payment Arrangement
Shares surrendered for employee taxes on stock compensation
Repayments on convertible notes
Repayments on convertible notes
Repurchase of convertible notes
Company settled the outstanding notes, in cash
Employee Stock [Member]
Underwater Options
Revenue from Contract with Customer [Text Block]
Revenue Recognition
Entity Registrant Name
Entity Registrant Name
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued, Total
Debt Disclosure [Text Block]
Financing Arrangements
Accumulated benefit obligation for plans which the accumulated benefit obligation exceeded the fair value of plan assets
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets, Accumulated Benefit Obligation
Entity Voluntary Filers
Entity Voluntary Filers
2025
Finite-Lived Intangible Asset, Expected Amortization, Year Two
Treasury Stock, Shares, Acquired
Shares surrendered for taxes (in shares)
Other (income) expense, net
Other Nonoperating Income (Expense)
Other (income) expense, net
Total other (income) expense, net
Total other (income) expense, net
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income Loss [Table]
Deferred State and Local Income Tax Expense (Benefit)
State and local
Subsequent Events [Abstract]
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Cybersecurity Risk Management Positions or Committees Responsible [Flag]
Schedule of Other Nonoperating Income (Expense) [Table Text Block]
Schedule of Other (Income) Expense, Net
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
SOFR Rate
2026
Finite-Lived Intangible Asset, Expected Amortization, Year Three
Income Tax Expense (Benefit)
Provision (benefit) for income taxes
Provision (benefit) for incomes taxes
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage
Target asset allocation
Michael S. Williams [Member]
Michael S. Williams.
Michael S. Williams
Defined Benefit Plan, Expected Future Benefit Payment, Year Five
2030
Defined benefit plan realized gain (loss).
Defined Benefit Plan Realized Gain (Loss)
Realized gain (loss)
Stock Repurchased, Amount
Stock Repurchased During Period, Value
Loss on sale of consolidated subsidiary
Gain loss on sale of consolidated subsidiary.
Gain Loss On Sale Of Consolidated Subsidiary
Loss on sale of consolidated subsidiary
Average Repurchase price
Treasury Stock Reissued at Lower than Repurchase Price
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Nicholas A Yacobozzi Trading Arrangement Common Sale [Member]
Nicholas A Yacobozzi Trading Arrangement Common Sale [Member]
Nicholas A. Yacobozzi Trading Arrangement Common Sale [Member]
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Lessee, Operating Lease, Remaining Lease Term
Remaining lease term
Terms of conversion
Debt Instrument, Convertible, Terms of Conversion Feature
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Payments for Restructuring
Payments
Payments
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Granted (in shares)
Lump Sum Based Losses
Lump sum based loss
Lump sum based losses.
Assets
Total Assets
Inventory, Policy [Policy Text Block]
Inventories, Net
Income Tax Paid, State and Local, after Refund Received
Income Tax Paid, State and Local, after Refund Received, Total
State
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term
Options exercisable, weighted average remaining contractual term
Income Statement [Abstract]
Retirement Plan Name [Domain]
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account
Charged to Other Accounts
Share-Based Payment Arrangement [Policy Text Block]
Stock-Based Compensation
Total deferred tax expense (benefit)
Deferred Income Tax Expense (Benefit)
Statutory Accounting Practice, Jurisdiction [Axis]
Lobbying Expenses , Percentage
Effective Income Tax Rate Reconciliation Nondeductible Expense Lobbying Expenses Percent
Lobbying expenses.
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period
Vested (in shares)
Schedule of Allocation of Plan Assets [Table Text Block]
Schedule of Allocation of Plan Assets
Earnings Per Share, Diluted
Diluted earnings (loss) per share
Earnings Per Share, Diluted, Total
Diluted earnings (loss) per share
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Summary of Financial Segment Information
2028
Finite-Lived Intangible Asset, Expected Amortization, Year Five
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Adjustments:
Title and Position [Domain]
Title of Individual
Bargaining Plan
TimkenSteel Corporation Bargaining Unit Pension Plan [Member]
TimkenSteel corporation bargaining unit pension plan.
City Area Code
City Area Code
Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position
Total assets (liabilities) recognized
Stock-based compensation, extended-term plan
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Date
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Pensions
Pension and postretirement benefits
Auditor Name
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Remeasurement due to Settlement
Defined benefit plan annuitization settlement
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
Schedule of Defined Benefit Plans Disclosures
Restricted Cash and Cash Equivalents, Current, Total
Restricted Cash and Cash Equivalent, Current
Restricted cash reported in other current assets
Finance Lease, Liability, Noncurrent
Non-current finance lease liabilities
Quarterly Financial Information [Table Text Block]
Schedule of Quarterly Financial Data
Debt Instrument, Face Amount
Debt Instrument, Face Amount
Buildings and Improvements, Gross
Buildings and improvements
Buildings and Improvements, Gross, Total
Kevin A. Raketich [Member]
Kevin A. Raketich.
Kevin A. Raketich
Line of Credit Facility, Maximum Borrowing Capacity
Line of credit facility, maximum borrowing capacity
Stock issued during period, shares, stock-based compensation.
Stock Issued During Period Shares Stock Based Compensation
Stock-based compensation expense (in shares)
Miscellaneous (income) expense
Miscellaneous Nonoperating Income (Expense)
Miscellaneous Nonoperating Income Expense
Miscellaneous (income) expense
U.S. research tax credit
Effective Income Tax Rate Reconciliation, Tax Credit, Research, Amount
Research and Development Credit , Amount
Commercial and Standby Letters of Credit [Member]
Commercialand Standby Lettersof Credit [Member]
Commercial and Standby Letters of Credit
Lineof Credit Facility Borrowing Sublimit
Line of Credit Facility, Borrowing Sublimit
Line of credit facility, borrowing sublimit
Operating Lease, Weighted Average Remaining Lease Term
Weighted average remaining lease term for operating leases
Lease, Cost
Total lease cost
Computer Software, Intangible Asset [Member]
Capitalized software
Retirement Plan Name [Axis]
Property, Plant and Equipment, Net
Property, plant and equipment, net
Property, plant and equipment, net
Property, Plant and Equipment, Net, Beginning Balance
Property, Plant and Equipment, Net, Ending Balance
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Right-of-use assets obtained in exchange for financing lease obligations
Defined Benefit Plan, Expected Future Benefit Payment, Year Three
2028
Deferred Foreign Income Tax Expense (Benefit)
Foreign
Incremental common shares attributable to share based payment arrangements shares assumed purchased.
Incremental Common Shares Attributable To Share Based Payment Arrangements Shares Assumed Purchased
Shares assumed purchased
Equity and incentive compensation 2020 plan
Equity and Incentive Compensation 2020 Plan [Member]
Equity and incentive compensation 2020 plan.
Discount rate
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate
Retained Earnings (Deficit)
Retained Earnings [Member]
Aerospace & Defense
Aerospace and Defense [Member]
Aerospace and Defense [Member]
Swingline Loans [Member]
Swingline Loans [Member]
Swingline Loans
Share-Based Payment Arrangement, Noncash Expense
Stock-based compensation expense
Share-based Payment Arrangement, Noncash Expense, Total
Operating Lease, Weighted Average Discount Rate, Percent
Weighted average discount rate used to measure operating lease liabilities
Operating Lease, Liability, Noncurrent
Non-current operating lease liabilities
Fair Value, Inputs, Level 1 [Member]
Level 1
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Net Cash Provided (Used) by Financing Activities
Grant received
Grants Receivable
Lease, Cost [Table Text Block]
Schedule of Components of Operating and Finance Lease Cost
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]
Change In Accounting Principle Accounting Standards Update Adopted
Unamortized Debt Issuance Expense
Unamortized debt issuance costs
Auditor Location
Deferred Income Tax Liabilities, Net
Deferred income taxes
Deferred Income Tax Liabilities, Net, Total
Disposal Group, Accelerated Depreciation Expense
Disposal Group Accelerated Depreciation Expense
Accelerated depreciation
Mutual fund - equities
Mutual fund - equities [Member]
Mutual fund - equities [Member]
Non-US [Member]
Foreign
Corporate Debt Securities [Member]
Corporate bonds
Income Tax Jurisdiction [Domain]
Income Tax Authority
Entity Interactive Data Current
Entity Interactive Data Current
Share-based Compensation Expense by Share-based Payment Award, Aggregate Share Limit
Sharebased Compensation Expenseby Sharebased Payment Award Aggregate Share Limit
Aggregate share limit ratio
Defined Benefit Plan, Plan Assets, Category [Axis]
Defined Benefit Plan, Plan Assets, Category
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Operating Activities
Mutual fund - tactical tilt [Member]
Mutual fund - tactical tilt
Mutual fund - tactical tilt [Member]
Accounting Standards Update and Change in Accounting Principle [Text Block]
Significant Accounting Policies
Convertible Senior Notes due Twenty Twenty One [Member]
Convertible Senior Notesdue Twenty Twenty One [Member]
Convertible Senior Notes due 2021
Convertible Senior Notes due 2021
Defined Benefit Plan, Benefit Obligation, Payment for Settlement
Bargaining Plan's obligations
Components of Deferred Tax Liabilities [Abstract]
Deferred tax liabilities:
Cumulative Effect, Period of Adoption [Domain]
Cumulative Effect, Period of Adoption
Entity Tax Identification Number
Entity Tax Identification Number
Long-Term Debt, Type [Axis]
Long-term Debt, Type
Subsequent pricing adjustments
Subsequent Pricing Adjustments
Subsequent Pricing Adjustments
Other Inventory, Supplies, Gross
Manufacturing supplies
Extinguishment of Debt
Effective Income Tax Rate Reconciliation Nondeductible Expense Extinguishment of Debt Amount
Extinguishment of debt.
Extinguishment of Debt, Amount
Construction in Progress, Gross
Construction in progress
Local Phone Number
Local Phone Number
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income Loss [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Net Periodic Benefit Cost (Income)
Short-term lease cost
Short-Term Lease, Cost
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Denominator:
Auditor Opinion [Text Block]
Finance Lease, Liability, to be Paid, Year Two
2027
Long-Lived Assets
Long-lived assets, net
Accounting Policies [Abstract]
Payments for Capital Improvements
Capital expenditures
Debt instrument, threshold trading days
Debt Instrument, Convertible, Threshold Trading Days
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue Line Items
Deferred Tax Liabilities, Undistributed Foreign Earnings
Deferred Tax Liabilities, Undistributed Foreign Earnings
Revenue from Contract with Customer, Excluding Assessed Tax
Net sales
Revenue from Contract with Customer, Excluding Assessed Tax, Total
Long-Term Line of Credit, Noncurrent
Credit Agreement
Lessee, Operating Lease, Liability, to be Paid, Year Four
2029
Debt Instrument, Repurchased Face Amount
Principal amount, repurchased
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant
Shares available for grant (in shares)
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Future stock-based compensation expense, period of recognition
Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]
Numerator:
Entity Emerging Growth Company
Entity Emerging Growth Company
Revision of Prior Period, Accounting Standards Update, Adjustment
Revision of Prior Period, Accounting Standards Update, Adjustment [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term
Options expected to vest, weighted average remaining contractual term