SEC Info  
    Home      Search      My Interests      Help      Sign In      Please Sign In

TimkenSteel Corp. – ‘10-Q’ for 6/30/22 – ‘XML’

On:  Thursday, 8/4/22, at 4:27pm ET   ·   For:  6/30/22   ·   Accession #:  950170-22-14785   ·   File #:  1-36313

Previous ‘10-Q’:  ‘10-Q’ on 5/4/22 for 3/31/22   ·   Next:  ‘10-Q’ on 11/3/22 for 9/30/22   ·   Latest:  ‘10-Q’ on 11/2/23 for 9/30/23

Find Words in Filings emoji
 
  in    Show  and   Hints

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 8/04/22  TimkenSteel Corp.                 10-Q        6/30/22   71:11M                                    Donnelley … Solutions/FA

Quarterly Report   —   Form 10-Q

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   3.02M 
 2: EX-31.1     Certification -- §302 - SOA'02                      HTML     26K 
 3: EX-31.2     Certification -- §302 - SOA'02                      HTML     26K 
 4: EX-32.1     Certification -- §906 - SOA'02                      HTML     23K 
10: R1          Document and Entity Information                     HTML     72K 
11: R2          Consolidated Statements of Operations (Unaudited)   HTML     89K 
12: R3          Consolidated Statements of Comprehensive Income     HTML     46K 
                (Loss) (Unaudited)                                               
13: R4          Consolidated Statements of Comprehensive Income     HTML     22K 
                (Loss) (Unaudited) (Parenthetical)                               
14: R5          Consolidated Balance Sheets (Unaudited)             HTML    139K 
15: R6          Consolidated Balance Sheets (Unaudited)             HTML     34K 
                (Parenthetical)                                                  
16: R7          Consolidated Statements of Shareholder's Equity     HTML    111K 
                (Unaudited)                                                      
17: R8          Consolidated Statements of Cash Flows (Unaudited)   HTML     99K 
18: R9          Consolidated Statements of Cash Flows (Unaudited)   HTML     29K 
                (Parenthetical)                                                  
19: R10         Basis of Presentation                               HTML     26K 
20: R11         Recent Accounting Pronouncements                    HTML     41K 
21: R12         Revenue Recognition                                 HTML    117K 
22: R13         Restructuring Charges                               HTML     51K 
23: R14         Disposition of Non-Core Assets                      HTML     32K 
24: R15         Other (Income) Expense, Net                         HTML     88K 
25: R16         Income Tax Provision                                HTML     58K 
26: R17         Earnings (Loss) Per Share                           HTML    129K 
27: R18         Inventories                                         HTML     53K 
28: R19         Financing Arrangements                              HTML    161K 
29: R20         Retirement and Postretirement Plans                 HTML    415K 
30: R21         Stock-Based Compensation                            HTML     32K 
31: R22         Accumulated Other Comprehensive Income (Loss)       HTML    106K 
32: R23         Contingencies                                       HTML     26K 
33: R24         Recent Accounting Pronouncements (Policies)         HTML     30K 
34: R25         Revenue Recognition (Tables)                        HTML    111K 
35: R26         Restructuring Charges (Tables)                      HTML     42K 
36: R27         Other (Income) Expense, Net (Tables)                HTML     76K 
37: R28         Income Tax Provision (Tables)                       HTML     46K 
38: R29         Earnings (Loss) Per Share (Tables)                  HTML    114K 
39: R30         Inventories (Tables)                                HTML     53K 
40: R31         Financing Arrangements (Tables)                     HTML    131K 
41: R32         Retirement and Postretirement Plans (Tables)        HTML    397K 
42: R33         Accumulated Other Comprehensive Income (Loss)       HTML    104K 
                (Tables)                                                         
43: R34         Basis of Presentation - Narrative (Details)         HTML     22K 
44: R35         Recent Accounting Pronouncements - Narrative        HTML     44K 
                (Details)                                                        
45: R36         Revenue Recognition (Details)                       HTML     44K 
46: R37         Revenue Recognition - Narrative (Details)           HTML     21K 
47: R38         Restructuring Charges - Narrative (Details)         HTML     25K 
48: R39         Restructuring Charges - Summary of Restructuring    HTML     28K 
                Reserve (Details)                                                
49: R40         Disposition of Non-Core Assets (Details)            HTML     53K 
50: R41         Other (Income) Expense, Net (Details)               HTML     32K 
51: R42         Other (Income) Expense, Net - Narrative (Details)   HTML     27K 
52: R43         Income Tax Provision - Schedule of (Benefit)        HTML     26K 
                Provision for Income Taxes (Details)                             
53: R44         Income Tax Provision - Narrative (Details)          HTML     31K 
54: R45         Earnings (Loss) Per Share - Additional Information  HTML     39K 
                (Details)                                                        
55: R46         Earnings (Loss) Per Share - Schedule of Earnings    HTML     59K 
                Per Share (Details)                                              
56: R47         Inventories - Schedule of Inventory (Details)       HTML     35K 
57: R48         Financing Arrangements - Summary of Current and     HTML     30K 
                Non-current Debt (Details)                                       
58: R49         Financing Arrangements - Narrative (Details)        HTML    108K 
59: R50         Financing Arrangements - Schedule of Convertible    HTML     31K 
                Debt (Details)                                                   
60: R51         Financing Arrangements - Schedule of Interest       HTML     30K 
                Expense (Details)                                                
61: R52         Financing Arrangements - Schedule Components of     HTML     28K 
                Interest Expense (Details)                                       
62: R53         Retirement and Postretirement Plans - Narrative     HTML     41K 
                (Details)                                                        
63: R54         Retirement and Postretirement Plans - Components    HTML     63K 
                of Net Periodic Benefit Cost (Details)                           
64: R55         Stock-Based Compensation - Narrative (Details)      HTML     34K 
65: R56         Accumulated Other Comprehensive Income (Loss) -     HTML     51K 
                Schedule of Accumulated Other Comprehensive Income               
                (Loss) (Details)                                                 
66: R57         Contingencies - Narrative (Details)                 HTML     22K 
69: XML         IDEA XML File -- Filing Summary                      XML    130K 
67: XML         XBRL Instance -- tmst-20220630_htm                   XML   2.72M 
68: EXCEL       IDEA Workbook of Financial Reports                  XLSX    113K 
 6: EX-101.CAL  XBRL Calculations -- tmst-20220630_cal               XML    160K 
 9: EX-101.DEF  XBRL Definitions -- tmst-20220630_def                XML    406K 
 7: EX-101.LAB  XBRL Labels -- tmst-20220630_lab                     XML   1.04M 
 8: EX-101.PRE  XBRL Presentations -- tmst-20220630_pre              XML    724K 
 5: EX-101.SCH  XBRL Schema -- tmst-20220630                         XSD    138K 
70: JSON        XBRL Instance as JSON Data -- MetaLinks              384±   566K 
71: ZIP         XBRL Zipped Folder -- 0000950170-22-014785-xbrl      Zip    607K 


‘XML’   —   IDEA XML File — Filing Summary


This Document is an IDEA XML File.


                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<FilingSummary>
<Version> 3.22.2 </Version>
<ProcessingTime/>
<ReportFormat> html </ReportFormat>
<ContextCount> 176 </ContextCount>
<ElementCount> 251 </ElementCount>
<EntityCount> 1 </EntityCount>
<FootnotesReported> false </FootnotesReported>
<SegmentCount> 46 </SegmentCount>
<ScenarioCount> 0 </ScenarioCount>
<TuplesReported> false </TuplesReported>
<UnitCount> 5 </UnitCount>
<MyReports>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R1.htm </HtmlFileName>
<LongName> 100000 - Document - Document and Entity Information </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DocumentDocumentAndEntityInformation </Role>
<ShortName> Document and Entity Information </ShortName>
<MenuCategory> Cover </MenuCategory>
<Position> 1 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R2.htm </HtmlFileName>
<LongName> 100010 - Statement - Consolidated Statements of Operations (Unaudited) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_StatementConsolidatedStatementsOfOperationsUnaudited </Role>
<ShortName> Consolidated Statements of Operations (Unaudited) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 2 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R3.htm </HtmlFileName>
<LongName> 100020 - Statement - Consolidated Statements of Comprehensive Income (Loss) (Unaudited) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_StatementConsolidatedStatementsOfComprehensiveIncomeLossUnaudited </Role>
<ShortName> Consolidated Statements of Comprehensive Income (Loss) (Unaudited) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 3 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R4.htm </HtmlFileName>
<LongName> 100030 - Statement - Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/StatementConsolidatedStatementsOfComprehensiveIncomeLossUnauditedParenthetical </Role>
<ShortName> Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 4 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R5.htm </HtmlFileName>
<LongName> 100040 - Statement - Consolidated Balance Sheets (Unaudited) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_StatementConsolidatedBalanceSheetsUnaudited </Role>
<ShortName> Consolidated Balance Sheets (Unaudited) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 5 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R6.htm </HtmlFileName>
<LongName> 100050 - Statement - Consolidated Balance Sheets (Unaudited) (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_StatementConsolidatedBalanceSheetsUnauditedParenthetical </Role>
<ShortName> Consolidated Balance Sheets (Unaudited) (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 6 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R7.htm </HtmlFileName>
<LongName> 100060 - Statement - Consolidated Statements of Shareholder's Equity (Unaudited) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_StatementConsolidatedStatementsOfShareholderSEquityUnaudited </Role>
<ShortName> Consolidated Statements of Shareholder's Equity (Unaudited) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 7 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R8.htm </HtmlFileName>
<LongName> 100070 - Statement - Consolidated Statements of Cash Flows (Unaudited) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_StatementConsolidatedStatementsOfCashFlowsUnaudited </Role>
<ShortName> Consolidated Statements of Cash Flows (Unaudited) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 8 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R9.htm </HtmlFileName>
<LongName> 100080 - Statement - Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/StatementConsolidatedStatementsOfCashFlowsUnauditedParenthetical </Role>
<ShortName> Consolidated Statements of Cash Flows (Unaudited) (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 9 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R10.htm </HtmlFileName>
<LongName> 100090 - Disclosure - Basis of Presentation </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureBasisOfPresentation </Role>
<ShortName> Basis of Presentation </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 10 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R11.htm </HtmlFileName>
<LongName> 100100 - Disclosure - Recent Accounting Pronouncements </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRecentAccountingPronouncements </Role>
<ShortName> Recent Accounting Pronouncements </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 11 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R12.htm </HtmlFileName>
<LongName> 100110 - Disclosure - Revenue Recognition </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRevenueRecognition </Role>
<ShortName> Revenue Recognition </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 12 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R13.htm </HtmlFileName>
<LongName> 100120 - Disclosure - Restructuring Charges </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRestructuringCharges </Role>
<ShortName> Restructuring Charges </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 13 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R14.htm </HtmlFileName>
<LongName> 100130 - Disclosure - Disposition of Non-Core Assets </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureDispositionOfNonCoreAssets </Role>
<ShortName> Disposition of Non-Core Assets </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 14 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R15.htm </HtmlFileName>
<LongName> 100140 - Disclosure - Other (Income) Expense, Net </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureOtherIncomeExpenseNet </Role>
<ShortName> Other (Income) Expense, Net </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 15 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R16.htm </HtmlFileName>
<LongName> 100150 - Disclosure - Income Tax Provision </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureIncomeTaxProvision </Role>
<ShortName> Income Tax Provision </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 16 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R17.htm </HtmlFileName>
<LongName> 100160 - Disclosure - Earnings (Loss) Per Share </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureEarningsLossPerShare </Role>
<ShortName> Earnings (Loss) Per Share </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 17 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R18.htm </HtmlFileName>
<LongName> 100170 - Disclosure - Inventories </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureInventories </Role>
<ShortName> Inventories </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 18 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R19.htm </HtmlFileName>
<LongName> 100180 - Disclosure - Financing Arrangements </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureFinancingArrangements </Role>
<ShortName> Financing Arrangements </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 19 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R20.htm </HtmlFileName>
<LongName> 100190 - Disclosure - Retirement and Postretirement Plans </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRetirementAndPostretirementPlans </Role>
<ShortName> Retirement and Postretirement Plans </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 20 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R21.htm </HtmlFileName>
<LongName> 100200 - Disclosure - Stock-Based Compensation </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensation </Role>
<ShortName> Stock-Based Compensation </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 21 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R22.htm </HtmlFileName>
<LongName> 100210 - Disclosure - Accumulated Other Comprehensive Income (Loss) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLoss </Role>
<ShortName> Accumulated Other Comprehensive Income (Loss) </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 22 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R23.htm </HtmlFileName>
<LongName> 100220 - Disclosure - Contingencies </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureContingencies </Role>
<ShortName> Contingencies </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 23 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R24.htm </HtmlFileName>
<LongName> 100230 - Disclosure - Recent Accounting Pronouncements (Policies) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRecentAccountingPronouncementsPolicies </Role>
<ShortName> Recent Accounting Pronouncements (Policies) </ShortName>
<MenuCategory> Policies </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRecentAccountingPronouncements </ParentRole>
<Position> 24 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R25.htm </HtmlFileName>
<LongName> 100240 - Disclosure - Revenue Recognition (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRevenueRecognitionTables </Role>
<ShortName> Revenue Recognition (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRevenueRecognition </ParentRole>
<Position> 25 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R26.htm </HtmlFileName>
<LongName> 100250 - Disclosure - Restructuring Charges (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRestructuringChargesTables </Role>
<ShortName> Restructuring Charges (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRestructuringCharges </ParentRole>
<Position> 26 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R27.htm </HtmlFileName>
<LongName> 100260 - Disclosure - Other (Income) Expense, Net (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureOtherIncomeExpenseNetTables </Role>
<ShortName> Other (Income) Expense, Net (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureOtherIncomeExpenseNet </ParentRole>
<Position> 27 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R28.htm </HtmlFileName>
<LongName> 100270 - Disclosure - Income Tax Provision (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureIncomeTaxProvisionTables </Role>
<ShortName> Income Tax Provision (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureIncomeTaxProvision </ParentRole>
<Position> 28 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R29.htm </HtmlFileName>
<LongName> 100280 - Disclosure - Earnings (Loss) Per Share (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureEarningsLossPerShareTables </Role>
<ShortName> Earnings (Loss) Per Share (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureEarningsLossPerShare </ParentRole>
<Position> 29 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R30.htm </HtmlFileName>
<LongName> 100290 - Disclosure - Inventories (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureInventoriesTables </Role>
<ShortName> Inventories (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureInventories </ParentRole>
<Position> 30 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R31.htm </HtmlFileName>
<LongName> 100300 - Disclosure - Financing Arrangements (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureFinancingArrangementsTables </Role>
<ShortName> Financing Arrangements (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureFinancingArrangements </ParentRole>
<Position> 31 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R32.htm </HtmlFileName>
<LongName> 100310 - Disclosure - Retirement and Postretirement Plans (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRetirementAndPostretirementPlansTables </Role>
<ShortName> Retirement and Postretirement Plans (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRetirementAndPostretirementPlans </ParentRole>
<Position> 32 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R33.htm </HtmlFileName>
<LongName> 100320 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLossTables </Role>
<ShortName> Accumulated Other Comprehensive Income (Loss) (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLoss </ParentRole>
<Position> 33 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R34.htm </HtmlFileName>
<LongName> 100330 - Disclosure - Basis of Presentation - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/DisclosureBasisOfPresentationNarrativeDetails </Role>
<ShortName> Basis of Presentation - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 34 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R35.htm </HtmlFileName>
<LongName> 100340 - Disclosure - Recent Accounting Pronouncements - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRecentAccountingPronouncementsNarrativeDetails </Role>
<ShortName> Recent Accounting Pronouncements - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 35 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R36.htm </HtmlFileName>
<LongName> 100350 - Disclosure - Revenue Recognition (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRevenueRecognitionDetails </Role>
<ShortName> Revenue Recognition (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRevenueRecognitionTables </ParentRole>
<Position> 36 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R37.htm </HtmlFileName>
<LongName> 100360 - Disclosure - Revenue Recognition - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/DisclosureRevenueRecognitionNarrativeDetails </Role>
<ShortName> Revenue Recognition - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 37 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R38.htm </HtmlFileName>
<LongName> 100370 - Disclosure - Restructuring Charges - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRestructuringChargesNarrativeDetails </Role>
<ShortName> Restructuring Charges - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 38 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R39.htm </HtmlFileName>
<LongName> 100380 - Disclosure - Restructuring Charges - Summary of Restructuring Reserve (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRestructuringChargesSummaryOfRestructuringReserveDetails </Role>
<ShortName> Restructuring Charges - Summary of Restructuring Reserve (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 39 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R40.htm </HtmlFileName>
<LongName> 100390 - Disclosure - Disposition of Non-Core Assets (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureDispositionOfNonCoreAssetsDetails </Role>
<ShortName> Disposition of Non-Core Assets (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureDispositionOfNonCoreAssets </ParentRole>
<Position> 40 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R41.htm </HtmlFileName>
<LongName> 100400 - Disclosure - Other (Income) Expense, Net (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureOtherIncomeExpenseNetDetails </Role>
<ShortName> Other (Income) Expense, Net (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureOtherIncomeExpenseNetTables </ParentRole>
<Position> 41 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R42.htm </HtmlFileName>
<LongName> 100410 - Disclosure - Other (Income) Expense, Net - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureOtherIncomeExpenseNetNarrativeDetails </Role>
<ShortName> Other (Income) Expense, Net - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureOtherIncomeExpenseNetTables </ParentRole>
<Position> 42 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R43.htm </HtmlFileName>
<LongName> 100420 - Disclosure - Income Tax Provision - Schedule of (Benefit) Provision for Income Taxes (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureIncomeTaxProvisionScheduleOfBenefitProvisionForIncomeTaxesDetails </Role>
<ShortName> Income Tax Provision - Schedule of (Benefit) Provision for Income Taxes (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 43 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R44.htm </HtmlFileName>
<LongName> 100430 - Disclosure - Income Tax Provision - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureIncomeTaxProvisionNarrativeDetails </Role>
<ShortName> Income Tax Provision - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 44 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R45.htm </HtmlFileName>
<LongName> 100440 - Disclosure - Earnings (Loss) Per Share - Additional Information (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureEarningsLossPerShareAdditionalInformationDetails </Role>
<ShortName> Earnings (Loss) Per Share - Additional Information (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureEarningsLossPerShareTables </ParentRole>
<Position> 45 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R46.htm </HtmlFileName>
<LongName> 100450 - Disclosure - Earnings (Loss) Per Share - Schedule of Earnings Per Share (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureEarningsLossPerShareScheduleOfEarningsPerShareDetails </Role>
<ShortName> Earnings (Loss) Per Share - Schedule of Earnings Per Share (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureEarningsLossPerShareTables </ParentRole>
<Position> 46 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R47.htm </HtmlFileName>
<LongName> 100460 - Disclosure - Inventories - Schedule of Inventory (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureInventoriesScheduleOfInventoryDetails </Role>
<ShortName> Inventories - Schedule of Inventory (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 47 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R48.htm </HtmlFileName>
<LongName> 100470 - Disclosure - Financing Arrangements - Summary of Current and Non-current Debt (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureFinancingArrangementsSummaryOfCurrentAndNonCurrentDebtDetails </Role>
<ShortName> Financing Arrangements - Summary of Current and Non-current Debt (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 48 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R49.htm </HtmlFileName>
<LongName> 100480 - Disclosure - Financing Arrangements - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureFinancingArrangementsNarrativeDetails </Role>
<ShortName> Financing Arrangements - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 49 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R50.htm </HtmlFileName>
<LongName> 100490 - Disclosure - Financing Arrangements - Schedule of Convertible Debt (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureFinancingArrangementsScheduleOfConvertibleDebtDetails </Role>
<ShortName> Financing Arrangements - Schedule of Convertible Debt (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 50 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R51.htm </HtmlFileName>
<LongName> 100500 - Disclosure - Financing Arrangements - Schedule of Interest Expense (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureFinancingArrangementsScheduleOfInterestExpenseDetails </Role>
<ShortName> Financing Arrangements - Schedule of Interest Expense (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 51 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R52.htm </HtmlFileName>
<LongName> 100510 - Disclosure - Financing Arrangements - Schedule Components of Interest Expense (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/DisclosureFinancingArrangementsScheduleComponentsOfInterestExpenseDetails </Role>
<ShortName> Financing Arrangements - Schedule Components of Interest Expense (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 52 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R53.htm </HtmlFileName>
<LongName> 100520 - Disclosure - Retirement and Postretirement Plans - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/DisclosureRetirementAndPostretirementPlansNarrativeDetails </Role>
<ShortName> Retirement and Postretirement Plans - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 53 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R54.htm </HtmlFileName>
<LongName> 100530 - Disclosure - Retirement and Postretirement Plans - Components of Net Periodic Benefit Cost (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureRetirementAndPostretirementPlansComponentsOfNetPeriodicBenefitCostDetails </Role>
<ShortName> Retirement and Postretirement Plans - Components of Net Periodic Benefit Cost (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 54 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R55.htm </HtmlFileName>
<LongName> 100540 - Disclosure - Stock-Based Compensation - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureStockBasedCompensationNarrativeDetails </Role>
<ShortName> Stock-Based Compensation - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 55 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R56.htm </HtmlFileName>
<LongName> 100550 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLossScheduleOfAccumulatedOtherComprehensiveIncomeLossDetails </Role>
<ShortName> Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureAccumulatedOtherComprehensiveIncomeLossTables </ParentRole>
<Position> 56 </Position>
</Report>
<Report instance="tmst-20220630.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R57.htm </HtmlFileName>
<LongName> 100560 - Disclosure - Contingencies - Narrative (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.timken.com/20220630/taxonomy/role/Role_DisclosureContingenciesNarrativeDetails </Role>
<ShortName> Contingencies - Narrative (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 57 </Position>
</Report>
<Report>
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<LongName> All Reports </LongName>
<ReportType> Book </ReportType>
<ShortName> All Reports </ShortName>
</Report>
</MyReports>
<InputFiles>
<File doctype="10-Q" original="tmst-20220630.htm"> tmst-20220630.htm </File>
<File> tmst-20220630.xsd </File>
<File> tmst-20220630_cal.xml </File>
<File> tmst-20220630_def.xml </File>
<File> tmst-20220630_lab.xml </File>
<File> tmst-20220630_pre.xml </File>
<File> tmst-ex31_1.htm </File>
<File> tmst-ex31_2.htm </File>
<File> tmst-ex32_1.htm </File>
</InputFiles>
<SupplementalFiles>
<File> img190633652_0.jpg </File>
<File> img190633652_1.jpg </File>
<File> img190633652_2.jpg </File>
<File> img190633652_3.jpg </File>
<File> img190633652_4.jpg </File>
<File> img190633652_5.jpg </File>
<File> img190633652_6.jpg </File>
<File> img190633652_7.jpg </File>
<File> img190633652_8.jpg </File>
</SupplementalFiles>
<BaseTaxonomies>
<BaseTaxonomy items="716"> http://fasb.org/us-gaap/2022 </BaseTaxonomy>
<BaseTaxonomy items="29"> http://xbrl.sec.gov/dei/2022 </BaseTaxonomy>
</BaseTaxonomies>
<HasPresentationLinkbase> true </HasPresentationLinkbase>
<HasCalculationLinkbase> true </HasCalculationLinkbase>
</FilingSummary>

Top
Filing Submission 0000950170-22-014785   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
AboutPrivacyRedactionsHelp — Sat., Apr. 27, 3:30:56.1am ET