Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Range [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Document Fiscal Year Focus Document Fiscal Year Focus Discount rate Lessee, Operating Lease, Discount Rate Net earnings Share-Based Payment Arrangement, Expense, after Tax Non-contractual Monies Owed Non-contractual Monies Owed [Member] Non-contractual Monies Owed Adjustment to Compensation, Amount Adjustment to Compensation Amount Shares Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Segment Reporting [Abstract] Segment Reporting [Abstract] Common stock, $0.0667 par value. Authorized 120,000,000 shares; 31,824,039 and 32,058,121 shares issued and outstanding at September 30, 2026 and December 31, 2025, respectively Common Stock, Value, Issued Schedule of Non-vested Restricted Stock Activity Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block] Accrued compensation and other benefits Employee-related Liabilities, Current EMPLOYEE BENEFIT PLANS Retirement Benefits [Text Block] Prepaid expenses Other Prepaid Expense, Current LEASES Lessee, Finance Leases [Text Block] Restatement Determination Date Restatement Determination Date Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Total Operating And Finance Lease, Liability, Current Operating And Finance Lease, Liability, Current Total finance lease Finance Lease, Cost Finance Lease, Cost Amendment Flag Amendment Flag Current liabilities: Liabilities, Current [Abstract] Shares repurchased, average cost (in dollars per 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Accumulated Amortization Other expenses, net: Nonoperating Income (Expense) [Abstract] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Product Sales Revenue Product Sales [Member] Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] United States UNITED STATES Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Litigation Case [Axis] Litigation Case [Axis] Land Land [Member] Grantee Status [Axis] Grantee Status [Axis] Schedule of Significant Segment Information Segment Reporting [Table Text Block] Amortization expense pertaining to capitalized costs Amortization of Debt Issuance Costs Related Party [Axis] Related and Nonrelated Parties [Axis] Other comprehensive (loss) income Other comprehensive (loss) 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Disclosure [Abstract] Gains on intra-entity foreign currency transactions Adjustment for Long-Term Intra-Entity Transaction, after Tax Investment in affiliates Payments to Acquire Interest in Subsidiaries and Affiliates Postretirement benefit plan Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Dividends payable Dividends Payable, Current Individual: Individual [Axis] Weighted Average Common Shares - Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Loss (gain) on disposal of assets and asset impairment Gain (Loss) on Sale of Assets and Asset Impairment Charges Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] October 1, 2026 to December 31, 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Predetermined [Flag] Schedule of Changes in Accumulated Other Comprehensive Loss Comprehensive Income (Loss) [Table Text Block] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Total intrinsic value of stock options exercised Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items] Level 1 Fair Value, Inputs, Level 1 [Member] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Grantee Status [Domain] Grantee Status [Domain] ANH Animal Nutrition and 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Tax Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Schedule of Net Periodic Benefit Cost Schedule of Net Benefit Costs [Table Text Block] St. Gabriel CC Company, LLC St. Gabriel CC Company, LLC [Member] Total Operating And Finance Lease, Right-of-Use Asset Operating And Finance Lease, Right-of-Use Asset Outstanding at beginning of period (in dollars per share) Outstanding at end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Right of use assets - operating leases Operating leases Operating Lease, Right-of-Use Asset Net change in postretirement benefit plan (see Note 14 for further information) Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract] Schedule of Reconciliation in Net Earnings and Shares Used in Calculating Basic and Diluted Net Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Royalty Revenue Royalty [Member] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] SEGMENT INFORMATION Segment Reporting [Text Block] Outstanding balance Long-Term Line of Credit Minimum Minimum [Member] Expiration Date Trading Arrangement Expiration Date Schedule of Revenues Disaggregated by Revenue Source Disaggregation of Revenue [Table Text Block] Effect of exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] 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years) Intangible Asset, Finite-Lived, Useful Life Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] 2028 Operating And Finance Lease, Liability, To Be Paid, Year Two Operating And Finance Lease, Liability, To Be Paid, Year Two Exercise Price Award Exercise Price Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Related Party Transaction [Axis] Related Party Transaction [Axis] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Segment Reporting [Line Items] Segment Reporting [Line Items] Unrecognized compensation cost Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Document Quarterly Report Document Quarterly Report Rabbi trust funds - non-current Asset, Held-in-Trust, Noncurrent Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] 2029 Operating And Finance Lease, Liability, To Be Paid, Year Three Operating And Finance Lease, Liability, To Be Paid, Year Three Earnings before income tax expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Capitalized costs net of accumulated amortization Debt Issuance Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Lease Contractual Term [Axis] Lease Contractual Term [Axis] Carrying value of joint venture Equity Method Investments Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Revolving loan Long-Term Line of Credit, Noncurrent Trade accounts payable Payables Accounts Payable, Trade, Current Adoption Date Trading Arrangement Adoption Date Years 3 and 4 Lessee, Operating Lease, Tranche Two [Member] Lessee, Operating Lease, Tranche Two [Member] 2027 Operating And Finance Lease, Liability, To Be Paid, Year One Operating And Finance Lease, Liability, To Be Paid, Year One Weighted-average discount rate - finance leases Finance Lease, Weighted Average Discount Rate, Percent Capital contributions Payments to Acquire Equity Method Investments Total stockholders' equity Beginning balance Ending balance Equity, Attributable to Parent Total other (income) expenses Other expenses Nonoperating Income (Expense) Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Risk-free interest rates Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Insider Trading Policies and Procedures [Line Items] Outstanding at beginning of period (in shares) Outstanding at end of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Accounts receivable allowance for credit losses Accounts Receivable, Allowance for Credit Loss, Current Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Performance Shares Performance Shares [Member] Number of shares authorized to be repurchased (in shares) Share Repurchase Program, Authorized, Number of Shares Deferred income taxes Deferred Income Tax Expense (Benefit) Installment payments required Line of Credit Facility, Periodic Payment Interest expense, net Interest Income (Expense), Nonoperating COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Current deferred compensation liability Deferred Compensation Liability, Current Anti-dilutive shares (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Entity Central Index Key Entity Central Index Key Less: accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] All Adjustments to Compensation All Adjustments to Compensation [Member] Other and Unallocated Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Other Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item 2030 Operating And Finance Lease, Liability, To Be Paid, Year Four Operating And Finance Lease, Liability, To Be Paid, Year Four Operating And Finance Lease, Liability, To Be Paid [Abstract] Operating And Finance Lease, Liability, To Be Paid [Abstract] Operating And Finance Lease, Liability, To Be Paid Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Income Statement [Abstract] Income Statement [Abstract] Stockholders' equity: Equity, Attributable to Parent [Abstract] Raw materials sold Raw Materials Sold [Member] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Investment, Name [Axis] Investment, Name [Axis] Operating expenses: Operating Expenses [Abstract] Finance lease liabilities - non-current Finance Lease, Liability, Noncurrent Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Identifiable Intangible Assets Intangible Asset, Finite-Lived [Table Text Block] Schedule of Assumptions Used in the Valuation of Option Awards Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Intangible Asset, Finite-Lived, Acquired [Table] Intangible Asset, Finite-Lived, Acquired [Table] Shares (000s) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] City Area Code City Area Code Restricted stock Restricted Stock [Member] Accumulated Other Comprehensive Income (Loss) Total AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Schedule of Other Information Pertaining to Stock Option Activity Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value and Grant Date Intrinsic Value [Table Text Block] Dividends paid Payments of Dividends Name Forgone Recovery, Individual Name Finished goods Inventory, Finished Goods, Net of Reserves Period for unrecognized compensation cost to be recognized over Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Weighted Average Grant Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] INTANGIBLE ASSETS Intangible Asset [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Assets Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Legal Entity [Domain] Entity [Domain] Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Operating Segments Operating Segments [Member] Net of tax Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Weighted-average fair value of options granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Schedule of Compensation Cost on Net Earnings Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Benefit obligation Defined Benefit Plan, Benefit Obligation PEO PEO [Member] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Canceled (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Stock-based compensation cost Share-Based Payment Arrangement, Expense Repurchases of common stock (in shares) Stock Repurchased and Retired During Period, Shares Goodwill Goodwill Retirement Plan Type [Axis] Retirement Plan Type [Axis] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Retained Earnings Retained Earnings [Member] Operating lease liabilities - non-current Operating leases liabilities - non-current Operating Lease, Liability, Noncurrent Income taxes payable Taxes Payable, Current Total operating expenses Operating expenses Operating Expenses Money market funds Money Market Funds [Member] Revolving Revolving Credit Facility [Member] Other long-term obligations Other Long-Term Debt, Noncurrent Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Irrevocable trust funds Asset, Held-in-Trust Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Foreign currency translation adjustment Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Net earnings per common share - diluted (in dollars per share) Net Earnings Per Share - Diluted (in dollars per share) Earnings Per Share, Diluted Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash used in financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Chemogas Defined Pension Plan Chemogas Defined Pension Plan [Member] Chemogas Defined Pension Plan Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Litigation Case [Domain] Litigation Case [Domain] Amortization of identifiable intangible assets Intangible Asset, Finite-Lived, Amortization Expense Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] EPA Community spending U.S. Environmental Protection Agency, Community Spending [Member] U.S. Environmental Protection Agency, Community Spending Research and development expenses Research and Development Expense Lease Contractual Term [Domain] Lease Contractual Term [Domain] Adjustments to reconcile net earnings to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Noncurrent deferred compensation liability Deferred Compensation Liability, Classified, Noncurrent Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Net sales Total Revenue Revenue from Contract with Customer, Excluding Assessed Tax Property, plant and equipment, net Property, plant and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Unused portion of revolving loan Line of Credit Facility, Remaining Borrowing Capacity Interest cost Defined Benefit Plan, Interest Cost HNH Human Nutrition and Health Human Nutrition And Health [Member] Human Nutrition And Health Commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Number of votes Equity Method Investment, Number Of Votes Equity Method Investment, Number Of Votes INVENTORIES Inventory Disclosure [Text Block] Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount REVENUE Revenue from Contract with Customer [Text Block] Forfeited (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Other intangible assets with finite lives Finite-Lived Intangible Assets Excluding Customer-Related Intangible Assets [Member] Finite-Lived Intangible Assets Excluding Customer-Related Intangible Assets Construction in progress Construction in Progress [Member] Inventories Increase (Decrease) in Inventories Weighted-average discount rate - operating leases Operating Lease, Weighted Average Discount Rate, Percent Segment Reporting [Table] Segment Reporting [Table] Shares available for future awards (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Table] Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Schedule of Right of Use Assets and Lease Liabilities Lease, Cost [Table Text Block] Number of vehicles Litigation Settlement, Number Of Mobile Health Clinic Vehicles Litigation Settlement, Number Of Mobile Health Clinic Vehicles Other current assets Other Assets, Current Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Earnings from operations Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Aggregate Future Minimum Rental Payments Required under Non-Cancelable Finance Leases Finance Lease, Liability, to be Paid, Maturity [Table Text Block] Cash paid for amounts included in the measurement of lease liabilities Cash Payments For Operating and Finance Leases Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Related Party Transaction [Domain] Related Party Transaction [Domain] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost Shares and options issued under stock plans Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Schedule of Non-vested Performance Share Activity Schedule of Nonvested Performance-Based Units Activity [Table Text Block] Gain Contingencies [Line Items] Gain Contingencies [Line Items] Schedule of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Common stock, shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] EQUITY METHOD INVESTMENT Equity Method Investments and Joint Ventures Disclosure [Text Block] Cash paid for amounts included in the measurement of lease liabilities Cash Flow, Operating Activities, Lessee [Abstract] Present value of lease liabilities Operating And Finance Lease, Liability Operating And Finance Lease, Liability ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Comprehensive Income (Loss) Note [Text Block] 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[Axis] Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Defined Benefit Pension Plans Pension Plan [Member] Common Stock Common Stock [Member] Excise taxes payable Share Repurchase Program, Excise Tax, Payable Expected volatilities Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Rent expense charged to operations under lease agreements Operating lease cost Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover page. Cover [Abstract] Foreign Countries Non-US [Member] Dividend yields Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate SP Specialty Products Specialty Products [Member] 2031 Operating And Finance Lease, Liability, To Be Paid, Year Five Operating And Finance Lease, Liability, To Be Paid, Year Five Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract] Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract] Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities and stockholders' equity Liabilities and Equity Stock options Share-Based Payment Arrangement, Option [Member] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Tabular List, Table Tabular List [Table Text Block] Additional paid-in capital Additional Paid in Capital Identifiable intangible assets [Abstract] Intangible Asset, Finite-Lived, after Accumulated Amortization [Abstract] Other expense (income), net Other Nonoperating Income (Expense) REVOLVING LOAN Long-Term Debt [Text Block] 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three Remainder of 2026 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Name Awards Close in Time to MNPI Disclosures, Individual Name Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Aggregate intrinsic value, outstanding, beginning of period Aggregate intrinsic value, outstanding, end of period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeited in Period Property, Plant and Equipment [Abstract] Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization [Abstract] General and administrative expenses General and Administrative Expense Property, Plant and Equipment, Type [Domain] Long-Lived Asset, Class [Domain] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Number of savings plans Number of Savings Plans Number of Savings Plans Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Preferred stock, $25 par value. Authorized 2,000,000 shares; none issued and outstanding Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Operating cash flows from finance leases Finance Lease, Interest Payment on Liability Interest Interest Paid, Excluding Capitalized Interest, Operating Activity Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Name Measure Name INCOME TAXES Income Tax Disclosure [Text Block] Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Additional Paid-in Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Equipment Equipment [Member] Name Trading Arrangement, Individual Name Total Operating And Finance Lease, Liability, Noncurrent Operating And Finance Lease, Liability, Noncurrent Selling expenses Selling Expense Cash and cash equivalents Cash and Cash Equivalent Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures Thereafter Operating And Finance Lease, Liability, To Be Paid, After Year Five Operating And Finance Lease, Liability, To Be Paid, After Year Five Raw materials Inventory, Raw Materials, Net of Reserves Company Selected Measure Amount Company Selected Measure Amount EPA Civil penalty U.S. Environmental Protection Agency, Civil Penalty [Member] U.S. Environmental Protection Agency, Civil Penalty Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Shares and options issued under stock plans (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Retirement Plan Name [Axis] Retirement Plan Name [Axis] Current assets: Assets, Current [Abstract] Weighted-average remaining lease term - operating leases Operating Lease, Weighted Average Remaining Lease Term Non-PEO NEO Non-PEO NEO [Member] Historical cash payments for retirement medical plan claims per year (less than) Defined Benefit Plan, Historical Cash Payments Amortization of gain Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Entity Address, Address Line One Entity Address, Address Line One Vested (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Income tax expense Income tax expense Income Tax Expense (Benefit) Services provided Services Provided [Member] Initial TSR's Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Initial Total Shareholder Return Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Initial Total Shareholder Return Award Timing Method Award Timing Method [Text Block] Consolidation Consolidation, Policy [Policy Text Block] (Decrease) increase in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Other intangible assets with finite lives, net Other Intangible Assets, Net Prior service gain arising during the period Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Amortization of gain (loss) Defined Benefit Plan, Amortization of Gain (Loss) AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Net earnings Net earnings Net earnings Net Earnings - Basic and Diluted Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] St. Gabriel CC Company, LLC Corporate Joint Venture [Member] Proceeds from sale of assets Proceeds from Sale of Property, Plant, and Equipment Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from stock options exercised Proceeds from Stock Options Exercised Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Certificate of deposit with maturities of three months or less Certificates of Deposit [Member] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Estimated share-based compensation expense Estimated Share Based Compensation Expense, Remainder Of Fiscal Year Estimated Share Based Compensation Expense, Remainder Of Fiscal Year Exercisable at end of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Payment for civil penalty and project benefits Litigation Settlement, Amount Awarded to Other Party Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Number of defined benefit plans Defined Benefit Plan, Number Of Benefit Plans Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]