Income Tax Disclosure [Abstract] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Gross unrecognized tax benefits at January 1 Unrecognized Tax Benefits Additions for tax positions of prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Reductions for tax positions of prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Reductions due to settlements Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Gross unrecognized tax benefits at December 31 Net uncertain tax benefits, that if recognized would impact the effective tax rate, at December 31 Unrecognized Tax Benefits that Would Impact Effective Tax Rate Segment Reporting [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Operating Segments Operating Segments [Member] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] U.S. UNITED STATES Mexico MEXICO Canada CANADA Other foreign countries Other Foreign Countries [Member] Other Foreign Countries Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Revenues Revenues Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] Other Current Assets Other Current Assets [Text Block] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Valuation Allowances SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Intangible Assets and Other Noncurrent Assets, Net [Abstract] Intangible Assets and Other Noncurrent Assets, Net [Abstract] Intangibles and Other Assets, net Intangibles and Other Assets [Text Block] Intangibles and Other Assets [Text Block] Entire footnote disclosure of intangibles and other long-term assets. Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Restricted Stock Restricted Stock [Member] Stock Options Employee Stock Option [Member] Performance Shares Performance Shares [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Amount Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted-average years to be recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Income tax expense at the U.S. statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount State income taxes Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Foreign tax rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Non-taxable interest income Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount U.S. Tax Cuts and Jobs Act of 2017 Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act of 2017, Amount Effective Income Tax Rate Reconciliation, Tax Cuts And Jobs Act of 2017, Amount Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Other non-deductible permanent items Effective Income Tax Rate Reconciliation, Nondeductible Expense, Other, Amount Provision for income taxes Income Tax Expense (Benefit) Reconciliation of the U.S. Statutory Rate and Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Reconciliation of the U.S. Statutory Rate and Income Taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Effective Income Tax Rate Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Reconciliation of Gross Unrecognized Tax Benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Retirement Benefits [Abstract] Schedule of Amounts Recognized in Other Comprehensive Income (Loss) Schedule of Amounts in Accumulated Other Comprehensive Income (Loss) to be Recognized over Next Fiscal Year [Table Text Block] Schedule of Defined Benefit Plan Amounts Recognized in Other Comprehensive Income (Loss) Schedule of Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] Schedule of Amounts Recognized in Balance Sheet Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan Changes in Projected Benefit Obligations, Fair Value of Plan Assets, and Funded Status of Plan [Table Text Block] Schedule of Accumulated and Projected Benefit Obligations Schedule of Accumulated and Projected Benefit Obligations [Table Text Block] Schedule of Net Benefit Costs Schedule of Net Benefit Costs [Table Text Block] Schedule of Assumptions Used Schedule of Assumptions Used [Table Text Block] Schedule of Expected Benefit Payments Schedule of Expected Benefit Payments [Table Text Block] Schedule of Allocation of Plan Assets Schedule of Allocation of Plan Assets [Table Text Block] Schedule of Health Care Cost Trend Rates Schedule of Health Care Cost Trend Rates [Table Text Block] Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Pension Pension Plan [Member] Other Benefits Other Postretirement Benefits Plan [Member] Change in accumulated other comprehensive income Defined Benefit Plan Disclosure [Line Items] Amortization of net (gain) loss Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Amortization of prior service cost / transition obligation Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit) and Transition Obligation, Reclassification Adjustment from AOCI, before Tax Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit) and Transition Obligation, Reclassification Adjustment from AOCI, before Tax Net (gain) loss Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Total change in accumulated other comprehensive income Other Comprehensive (Income) Loss, Defined Benefit Plan, before Tax, after Reclassification Adjustment, Attributable to Parent Deferred taxes Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent Net amount recognized Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax and Reclassification Adjustment, Attributable to Parent Equity [Abstract] Restructuring and Related Activities [Abstract] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Total expense recorded Restructuring Charges Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2018 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Five Organization, Consolidation and Presentation of Financial Statements [Abstract] Fiscal Year Fiscal Period, Policy [Policy Text Block] Consolidation, Subsidiaries or Other Investments, Consolidated Entities Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Accounts Receivable and Allowances for Doubtful Accounts Trade and Other Accounts Receivable, Policy [Policy Text Block] Inventories Inventory, Policy [Policy Text Block] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Long-Lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Other Intangible Assets Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Shipping and Handling Fees and Costs Shipping and Handling Cost, Policy [Policy Text Block] Advertising Expenses Advertising Cost, Policy, Expensed Advertising Cost [Policy Text Block] Foreign Currency Translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Research and Development Expenses Research and Development Expense, Policy [Policy Text Block] Employee Termination Benefits Costs Associated with Exit or Disposal Activities or Restructurings, Policy [Policy Text Block] Legal Costs Legal Costs, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Environmental Costs Environmental Costs, Policy [Policy Text Block] Comprehensive Income (Loss) Comprehensive Income, Policy [Policy Text Block] Share-based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Business Combinations Business Combinations Policy [Policy Text Block] Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Revenue from Contract with Customer [Abstract] Disaggregation of Revenue [Table Text Block] Disaggregation of Revenue [Table Text Block] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling, General and Administrative Expenses Selling, General and Administrative Expenses [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring reserve Restructuring Reserve, Current Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Defined Benefit Plan Disclosure Components of net periodic benefit Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Service cost Defined Benefit Plan, Service Cost Interest cost Defined Benefit Plan, Interest Cost Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Amortization of: Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment [Abstract] Prior service cost Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Actuarial loss (gain) Defined Benefit Plan, Amortization of Gain (Loss) Net transition obligation Defined Benefit Plan, Amortization of Transition Asset (Obligation) Net periodic benefit cost Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Weighted average assumptions for benefit obligation Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract] Discount rate Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Expected long-term rate of return on plan assets Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Expected Long-term Rate Of Return On Plan Assets Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Expected Long-term Rate Of Return On Plan Assets Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase Weighted average assumptions Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract] Discount rate Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate Expected long-term rate of return Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets Rate of compensation increase Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase Accrued health care cost trend rates at end of year Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract] Health care cost trend rate assumed for next year (initial rate) Defined Benefit Plan, Health Care Cost Trend Rate Assumed, Next Fiscal Year Rate to which the cost trend rate is assumed to decline (ultimate rate) Defined Benefit Plan, Ultimate Health Care Cost Trend Rate Year that the rate reaches the ultimate rate Defined Benefit Plan, Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate Debt Disclosure [Abstract] Debt Instruments [Abstract] Debt Instruments [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Base Rate Base Rate [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Letter of Credit Letter of Credit [Member] Swingline loan Bridge Loan [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Secured Debt Secured Debt [Member] Line of Credit Line of Credit [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Term loan Long-term Debt Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Line of credit facility, commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Debt instrument, variable rate Debt Instrument, Variable Rate Debt Instrument, Variable Rate Additional borrowing capacity Line of Credit Facility, Additional Borrowing Capacity Line of Credit Facility, Additional Borrowing Capacity Line of credit facility, maximum borrowings capacity including higher borrowing capacity option Line of Credit Facility, Maximum Borrowing Capacity Including Higher Borrowing Capacity Option Line of Credit Facility, Maximum Borrowing Capacity Including Higher Borrowing Capacity Option Voting equity Debt Instrument, Covenant Terms, Percentage Of Voting Equity Of Entities Holding Foreign Subsidiaries, Pledged As Collateral Debt Instrument, Covenant Terms, Percentage Of Voting Equity Of Entities Holding Foreign Subsidiaries, Pledged As Collateral Debt instrument, covenant terms, minimum difference applicable level must exceed total leverage ratio to pay out dividends Debt Instrument, Covenant Terms, Minimum Difference Applicable Level Must Exceed Total Leverage Ratio To Pay Out Dividends Debt Instrument, Covenant Terms, Minimum Difference Applicable Level Must Exceed Total Leverage Ratio To Pay Out Dividends Initial permitted foreign investments Debt Instrument, Covenant Terms, Initial Permitted Foreign Investments Debt Instrument, Covenant Terms, Initial Permitted Foreign Investments Maximum permitted foreign investment Debt Instrument, Covenant Terms, Maximum Permitted Foreign Investments Debt Instrument, Covenant Terms, Maximum Permitted Foreign Investments Covenant terms, maximum total leverage ratio Debt Instrument, Covenant Terms, Maximum Total Leverage Ratio Debt Instrument, Covenant Terms, Maximum Total Leverage Ratio Covenant terms, minimum interest coverage ratio Debt Instrument, Covenant Terms, Minimum Interest Coverage Ratio Debt Instrument, Covenant Terms, Minimum Interest Coverage Ratio Accessible borrowing availability Line of Credit Facility, Remaining Borrowing Capacity Total leverage ratio Debt Instrument, Covenant Compliance, Total Leverage Ratio Debt Instrument, Covenant Compliance, Total Leverage Ratio Interest coverage ratio Debt Instrument, Covenant Compliance, Interest Coverage Ratio Debt Instrument, Covenant Compliance, Interest Coverage Ratio Debt default terms, cross defaults of other indebtedness Debt Instrument, Debt Default, Cross Defaults Of Other Indebtedness Threshold Debt Instrument, Debt Default, Cross Defaults of Other Indebtedness Threshold Debt default terms, uninsured and unsatisfied judgments Debt Instrument, Debt Default, Uninsured And Unsatisfied Judgments Threshold Debt Instrument, Debt Default, Uninsured and Unsatisfied Judgments Threshold Debt default terms, liability under the retirement income security act of 1974 Debt Instrument, Debt Default, Employee Retirement Income Security Act Of 1974, Liability Threshold Debt Instrument, Debt Default, Employee Retirement Income Security Act of 1974 Liability Threshold Deferred financing costs Debt Issuance Costs, Line of Credit Arrangements, Gross Line of credit, balance outstanding Long-term Line of Credit Letters of credit, balance outstanding Letters of Credit Outstanding, Amount Weighted average interest rate Debt, Weighted Average Interest Rate Interest paid Interest Paid, Including Capitalized Interest, Operating and Investing Activities Interest expense Interest Expense, Debt Deferred financing cost Amortization of Debt Issuance Costs Interest income Investment Income, Interest Less: amount capitalized for capital projects Interest Costs Capitalized Adjustment Total interest expense, net Interest and Debt Expense Statement of Stockholders' Equity [Abstract] Other comprehensive income (loss), tax Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Other Liabilities Disclosure [Abstract] Other Current Liabilities Other Current Liabilities [Table Text Block] Other Long-Term Liabilities Other Liabilities Disclosure [Text Block] Deferred income taxes Deferred Income Tax Liabilities, Net Long term portion of U.S. transition tax Tax Cuts And Jobs Act of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Liability, Noncurrent Tax Cuts And Jobs Act of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Liability, Noncurrent Pension and post retirement liabilities Liability, Defined Benefit Plan, Noncurrent Restructuring reserve Restructuring Reserve, Noncurrent Uncertain tax positions Liability for Uncertainty in Income Taxes, Noncurrent Environmental liabilities Accrued Environmental Loss Contingencies, Noncurrent Deferred gain on sale leaseback transaction Sale Leaseback Transaction, Deferred Gain, Noncurrent Sale Leaseback Transaction, Deferred Gain, Noncurrent Deferred contract termination fee Deferred Contract Termination Fee, Noncurrent Deferred Contract Termination Fee, Noncurrent Other liabilities Other Sundry Liabilities, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Outstanding, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Released (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited / Surrendered (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Outstanding, ending balance (in shares) Weighted Average Grant Date Fair Value Per Share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Outstanding, beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value 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 Released (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 Forfeited / Surrendered (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 Outstanding, ending balance (in dollars per share) Schedule of Other Long-Term Liabilities Other Noncurrent Liabilities [Table Text Block] Schedule of Other Current Assets Schedule of Other Current Assets [Table Text Block] Net income Net Income (Loss) Attributable to Parent Provision for income taxes Interest expense, net Depreciation and amortization Depreciation, Depletion and Amortization, Excluding Amortization of Financing Costs Depreciation, Depletion and Amortization, Excluding Amortization of Financing Costs EBITDA Earnings Before Interest, Taxes, Depreciation and Amortization Earnings Before Interest, Taxes, Depreciation and Amortization Prior service cost Defined Benefit Plan, Expected Amortization of Prior Service Cost (Credit), Next Fiscal Year Net actuarial loss (gain) Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year Transition obligation Defined Benefit Plan, Expected Amortization of Transition Asset (Obligation), Next Fiscal Year Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Nonrecurring Adjustment [Axis] Nonrecurring Adjustment [Axis] Nonrecurring Adjustment [Domain] Nonrecurring Adjustment [Domain] Fair Value Adjustment to Inventory Fair Value Adjustment to Inventory [Member] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer Relationships Customer Relationships [Member] Trade Names Trade Names [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Novel Ingredients and NutraGenesis Novel Ingredients And NutraGenesis [Member] Novel Ingredients And NutraGenesis [Member] Novel Ingredients Novel Ingredients [Member] Novel Ingredients NutraGenesis Nutragenesis [Member] Nutragenesis [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Interest acquired Business Acquisition, Percentage of Voting Interests Acquired Cash payment to acquire business Payments to Acquire Businesses, Gross Working capital adjustments Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Consideration Transferred Consideration transferred Business Combination, Consideration Transferred Revenue of acquiree since acquisition date Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Net loss attributable to acquiree since acquisition date Business Combination, Pro Forma Information, Earnings or Loss of Acquiree since Acquisition Date, Actual Goodwill expected to be tax deductible Business Acquisition, Goodwill, Expected Tax Deductible Amount Operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Goodwill Goodwill Weighted average useful life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Pro forma depreciation and amortization expense Business Acquisition, Pro Forma Depreciation And Amortization Expense Business Acquisition, Pro Forma Depreciation And Amortization Expense Pro forma interest expense Business Acquisition, Pro Forma Interest Expense Business Acquisition, Pro Forma Interest Expense Acquisition related costs Business Combination, Acquisition Related Costs Integration related costs Business Combination, Integration Related Costs Commitments and Contingencies Disclosure [Abstract] 2018 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2019 Operating Leases, Future Minimum Payments, Due in Two Years 2020 Operating Leases, Future Minimum Payments, Due in Three Years 2021 Operating Leases, Future Minimum Payments, Due in Four Years 2022 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Inventory Disclosure [Abstract] Raw materials Inventory, Raw Materials, Net of Reserves Finished products Inventory, Finished Goods, Net of Reserves Spare parts Inventory, Parts and Components, Net of Reserves Inventory, Net Inventory, Net Inventory valuation reserves Inventory Valuation Reserves Inventories Inventory Disclosure [Text Block] Income Tax Examination [Table] Income Tax Examination [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] United States Domestic Tax Authority [Member] State and Local Jurisdiction State and Local Jurisdiction [Member] Income Tax Examination [Line Items] Income Tax Examination [Line Items] Operating loss carryforwards Operating Loss Carryforwards Tax benefit from stock options exercised Employee Service Share-based Compensation, Tax Benefit from Exercise of Stock Options Valuation allowances Deferred Tax Assets, Valuation Allowance Deferred tax assets, tax credit carryforwards, foreign Operating Loss And Tax Credit Carryforwards, Without Expiration Date Operating Loss And Tax Credit Carryforwards, Without Expiration Date Tax Cuts And Jobs Act of 2017, Accounting Complete, Income Tax Benefit (Expense) Tax Cuts And Jobs Act of 2017, Accounting Complete, Income Tax Benefit (Expense) Tax Cuts And Jobs Act of 2017, Accounting Complete, Income Tax Benefit (Expense) Tax Cuts and Jobs Act of 2017, Accounting Complete, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017, Accounting Complete, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017, Accounting Complete, Transition Tax for Accumulated Foreign Earnings, Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017, Accounting Complete, Deferred Tax Assets and Liabilities, Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017, Accounting Complete, Deferred Tax Assets and Liabilities, Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017, Accounting Complete, Deferred Tax Assets and Liabilities, Income Tax Expense (Benefit) Undistributed earnings of foreign subsidiaries, considered permanently reinvested Undistributed Earnings of Foreign Subsidiaries Tax Cuts and Jobs Act of 2017, Accounting Complete, Additional Taxable Income Accrual for GILTI Tax Cuts and Jobs Act of 2017, Accounting Complete, Additional Taxable Income Accrual for GILTI Tax Cuts and Jobs Act of 2017, Accounting Complete, Additional Taxable Income Accrual for GILTI Additional tax expense as the result of tax reform Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit) Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Provisional Income Tax Expense (Benefit) Charge related to one-time transition tax on mandatory deemed repatriation of foreign earnings Tax Cuts And Jobs Act of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Income Tax Expense (Benefit) Tax Cuts And Jobs Act of 2017, Incomplete Accounting, Transition Tax For Accumulated Foreign Earnings, Provisional Income Tax Expense (Benefit) Charge related to remeasurement of certain U.S. deferred tax assets and liabilities Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense Interest and penalties Income Tax Examination, Penalties and Interest Expense Unrecognized tax benefits, income tax penalties and interest accrued Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Income taxes paid Income Taxes Paid, Net Cash Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Accounts receivable, net of allowances of $511 and $0 for Novel Ingredients and NutraGenesis, respectively Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Inventory, including fair value adjustment of $4,300 for Novel Ingredients Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Property, plant and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Other non-current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Accounts payable Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable Accrued expenses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Expenses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Accrued Expenses Deferred income taxes Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Customer Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Customer Deposits Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Customer Deposits Total Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Statement of Financial Position [Abstract] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Treasury stock, shares held (in shares) Treasury Stock, Shares Payroll related Accrued Payroll Related Expenses, Current Accrued Payroll Related Expenses, Current Taxes other than income taxes Accrual for Taxes Other than Income Taxes, Current Benefits and pensions Accrued Employee Benefits and Pension, Current Accrued Employee Benefits and Pension, Current Freight and rebates Accrued Freight and Rebate Liabilities, Current Accrued Freight and Rebate Liabilities, Current Income taxes Accrued Income Taxes, Current Deferred gain on sale leaseback transaction Sale Leaseback Transaction, Deferred Gain, Current Sale Leaseback Transaction, Deferred Gain, Current Deferred contract termination fee Deferred Contract Termination Fee, Current Deferred Contract Termination Fee, Current Other Other Sundry Liabilities, Current Other current liabilities Other Liabilities, Current Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Trading Symbol Trading Symbol Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity common stock, shares outstanding (in shares) Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Entity Shell Company Entity Shell Company Entity Public Float Entity Public Float Specialty Ingredients Specialty Ingredients [Member] Specialty Ingredients [Member] Core Ingredients Core Ingredients [Member] Core Ingredients [Member] Co-Products & Other Co-Products And Other [Member] Co-Products And Other [Member] Other Countries Business Segments [Axis] Segments [Axis] Segment [Domain] Segments [Domain] Food, Health and Nutrition [Member] Food, Health and Nutrition [Member] Food, Health and Nutrition [Member] Industrial Specialties [Member] Industrial Specialties [Member] Industrial Specialties [Member] Other Segments [Member] Other Segments [Member] Depreciation and amortization expense Capital expenditures Payments to Acquire Property, Plant, and Equipment Long-lived assets Property, Plant and Equipment, Net Assets Assets Restructuring costs Revenue Revenue from Contract with Customer [Text Block] Number of Options Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning balance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Forfeited / Expired / Surrendered (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Outstanding, ending balance (in shares) Exercisable end of year (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding, beginning balance (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Forfeited / Expired / Surrendered (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Outstanding, ending balance (in dollars per share) Exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted Average Grant Date Fair Value (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Acquisitions Business Combination Disclosure [Text Block] Earnings Per Share [Abstract] Less: earnings attributable to unvested shares Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Net income available to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Weighted average number of common and potential common shares outstanding: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Basic number of common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Dilutive effect of stock equivalents (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Diluted number of weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Earnings per common share: Earnings Per Share Reconciliation [Abstract] Earnings per common share—Basic (in dollars per share) Earnings Per Share, Basic Earnings per common share—Diluted (in dollars per share) Earnings Per Share, Diluted Antidilutive securities excluded from calculation of EPS (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Expected volatility Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Risk-free interest rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected term in years Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Weighted average grant date fair value of stock options (in dollars per share) Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Award term Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Range of shares awarded at the end of a performance cycle, percentage Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Percentage Of Shares Vested Dependent On Performance Achievements Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Percentage of Shares Vested Dependent on Performance Achievements Award term Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Total intrinsic value of options exercised and stock grants Share-based Compensation Arrangement By Share-based Payment Award, Options, Grants And Exercises In Period, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants and Exercises in Period, Intrinsic Value Stock options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Stock options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Shares repurchased (in shares) Stock Repurchased During Period, Shares Treasury stock acquired value Stock Repurchased During Period, Value Statement of Comprehensive Income [Abstract] Tax amounts related to changes in interest rate swaps Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax, Portion Attributable to Parent Tax amounts related to changes in pension and post-retirement plans Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Reconciliation of Assets from Segment to Consolidated Reconciliation of Assets from Segment to Consolidated [Table Text Block] Reconciliation Of Net Income (Loss) To EBITDA Reconciliation Of Net Income (Loss) To EBITDA [Table Text Block] Reconciliation Of Net Income (Loss) To EBITDA [Table Text Block] Product Revenues Revenue from External Customers by Products and Services [Table Text Block] Geographic Revenues Revenue from External Customers by Geographic Areas [Table Text Block] Basis of Statement Presentation [Table] Statement [Table] Restatement [Axis] Restatement [Axis] Restatement [Domain] Restatement [Domain] Previously Reported Previously Reported [Member] Restatement Adjustment Restatement Adjustment [Member] Ownership [Axis] Ownership [Axis] Ownership [Domain] Ownership [Domain] Innophos, Inc. Innophos, Inc. [Member] Innophos, Inc. [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Innophos, Inc. Innophos Investments Holdings, Inc. [Member] Innophos Investments Holdings, Inc. [Member] Property, Plant and Equipment by Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Building and Building Improvements Building and Building Improvements [Member] Machinery and Equipment Machinery and Equipment [Member] Software Computer Software, Intangible Asset [Member] Basis of Statement Presentation [Line Items] Statement [Line Items] Ownership percentage Noncontrolling Interest, Ownership Percentage by Parent Accounts payable Increase (Decrease) in Accounts Payable Net Cash Provided by (Used in) Operating Activities Net Cash Provided by (Used in) Operating Activities Capital expenditures Net Cash Provided by (Used in) Investing Activities Net Cash Provided by (Used in) Investing Activities Accrued additions to plant assets Property, Plant and Equipment, Additions Property, plant and equipment, useful life Property, Plant and Equipment, Useful Life Intangible assets, useful life Finite-Lived Intangible Asset, Useful Life Effect of U.S. enacted Tax Cuts and Jobs Act Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings, Tax Effect Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings, Tax Effect Dividends paid – aggregate Payments of Ordinary Dividends, Common Stock Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] U.S. Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Revenues Revenue from Contract with Customer, Including Assessed Tax Stockholders' Equity / Stock-Based Compensation Shareholders' Equity and Share-based Payments [Text Block] Short-Term Borrowings and Long-Term Debt Schedule of Debt [Table Text Block] Components of Interest Expense, Net Interest Income and Interest Expense Disclosure [Table Text Block] Granted (at targeted return on invested capital and contribution margin growth) (in shares) Forfeited (in shares) Vested (in shares) Adjustment to estimate of shares to be earned (in shares) Share-based Compensation Arrangement By Share-based Payment Award, Options, Adjustment To Estimate Of Shares To Be Earned Share-based Compensation Arrangement by Share-based Payment Award, Options, Adjustment to Estimate of Shares to be Earned Granted (at targeted return on invested capital and contribution margin growth) (in dollars per share) Forfeited (in dollars per share) Vested (in dollars per share) Adjustment to estimate of shares to be earned (in dollars per share) Share-based Compensation Arrangement By Share-based Payment Award, Options, Adjustment To Estimate Of Shares To Be Earned, Weighted Average Grant Date Fair Value, Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Adjustment to Estimate of Shares to be Earned, Weighted Average Grant Date Fair Value, Per Share Defined Benefit Plan by Plan Asset Categories [Axis] Defined Benefit Plan, Plan Assets, Category [Axis] Defined Benefit Plan, Plan Assets, Category [Domain] Defined Benefit Plan, Plan Assets, Category [Domain] Equity Securities Equity Securities [Member] Debt Securities Fixed Income Securities [Member] Increase in periodic benefit cost Defined Benefit Plan, Effect Of Twenty Five Basis Point Decrease In Discount Rate On Net Periodic Benefit Cost Defined Benefit Plan, Effect Of Twenty Five Basis Point Decrease In Discount Rate On Net Periodic Benefit Cost Effect of one percentage point increase on postretirement benefit obligation Defined Benefit Plan, Effect Of One Percentage Point Decrease In Expected Rate Of Return On Plan Assets On Pension Plan Expense Defined Benefit Plan, Effect Of One Percentage Point Decrease In Expected Rate Of Return On Plan Assets On Pension Plan Expense Expected future employer contributions for next fiscal year Defined Benefit Plan, Expected Future Employer Contributions, Current Fiscal Year Target allocation percentage of assets Defined Benefit Plan, Plan Assets, Target Allocation, Percentage Defined contribution plan, cost Defined Contribution Plan, Cost Employer contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Required years of service, Mexico postretirement benefit plan Defined Benefit Plan, Required Years Of Service Defined Benefit Plan, Required Years Of Service Statutory profit sharing program Statutory Profit Sharing Program, Adjusted Taxable Income, Percentage Statutory Profit Sharing Program, Adjusted Taxable Income, Percentage Revenues Business Acquisition, Pro Forma Revenue Net income Business Acquisition, Pro Forma Net Income (Loss) Income per common share - Basic (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Income per common share - Diluted (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Supply Agreement Termination Purchase and Supply Commitment, Excluding Long-term Commitment [Text Block] Quarterly Financial Information Disclosure [Abstract] Schedule of Quarterly Financial Information Quarterly Financial Information [Table Text Block] Deferred tax assets: Deferred Tax Assets, Gross [Abstract] Inventories Deferred Tax Assets, Inventory Accrued liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Tax credits Deferred Tax Assets, Tax Credit Carryforwards Tax losses Total deferred tax assets Deferred Tax Assets, Gross Deferred tax liabilities: Deferred Tax Liabilities, Net [Abstract] Gain on bond retirement Deferred Tax Liabilities, Gain On Bond Retirement Deferred Tax Liabilities, Gain on Bond Retirement Intangibles Deferred Tax Liabilities, Intangible Assets Fixed assets Deferred Tax Liabilities, Property, Plant and Equipment Accrued liabilities Deferred Tax Liabilities, Deferred Expense, Reserves and Accruals Total deferred tax liabilities Deferred Tax Liabilities, Gross Total valuation allowances Net deferred tax assets Deferred Tax Assets, Net Deferred Tax Liabilities, Net Deferred Tax Liabilities, Net Cost of goods sold Cost of Goods and Services Sold Gross profit Gross Profit Operating expenses: Operating Expenses [Abstract] Selling, general and administrative Selling, General and Administrative Expense Research & development expenses Research and Development Expense Total operating expenses Operating Expenses Operating income Operating Income (Loss) Interest expense, net Foreign exchange (gains) losses Foreign Currency Transaction Gain (Loss), before Tax Other income, net Other Operating Income (Expense), Net Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Net income Net income attributable to common shareholders Per share data (see Note 13): Income per share: Basic (in dollars per share) Diluted (in dollars per share) Weighted average shares outstanding: Basic (in shares) Diluted (in shares) Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Change in interest rate swaps, (net of tax $256, $5, and $24) Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent Change in pension and post-retirement plans, (net of tax $390, $236, and ($749)) Other comprehensive (loss) income, net of tax Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Summary of Components of Stock-Based Compensation Expense Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Summary of Restricted Stock Activity Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Summary of Stock Option Activity Share-based Compensation, Stock Options, Activity [Table Text Block] Summary of Assumptions Used in the Black-Scholes Option-Pricing Model Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Summary of Performance Share Activity Share-based Compensation, Performance Shares Award Outstanding Activity [Table Text Block] Unrecognized Compensation Expense Related to Share-Based Payments Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block] ASSETS Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Accounts receivable, net of allowance for doubtful accounts ($688 and $445) Accounts Receivable, Net, Current Inventories Other current assets Other Assets, Current Total current assets Assets, Current Property, plant and equipment, net Intangibles and other assets, net Intangible and Other Assets, Noncurrent Intangible and Other Assets, Noncurrent Total assets LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Current portion of long-term debt Capital Lease Obligations, Current Accounts payable, trade and other Accounts Payable, Current Other current liabilities Total current liabilities Liabilities, Current Long-term debt Long-term Debt and Capital Lease Obligations Other long-term liabilities Total liabilities Liabilities Commitments and contingencies (note 16) Commitments and Contingencies Stockholders' Equity Attributable to Parent [Abstract] Stockholders' Equity Attributable to Parent [Abstract] Common stock, par value $.001 per share; authorized 100,000,000; issued 22,984,608 and 22,884,588; outstanding 19,613,085 and 19,537,872 shares Common Stock, Value, Issued Paid-in capital Additional Paid in Capital, Common Stock Common stock held in treasury, at cost (3,371,523 and 3,346,716 shares) Treasury Stock, Value Retained earnings Retained Earnings (Accumulated Deficit) Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total stockholders' equity Stockholders' Equity Attributable to Parent Total liabilities and stockholders' equity Liabilities and Equity Accumulated benefit obligation Defined Benefit Plan, Accumulated Benefit Obligation Change in benefit obligation Defined Benefit Plan, Change in Benefit Obligation [Roll Forward] Benefit obligation at beginning of year Defined Benefit Plan, Benefit Obligation Past service cost Defined Benefit Plan, Benefit Obligation, Increase (Decrease) for Plan Amendment Actuarial loss (gain) Defined Benefit Plan, Benefit Obligation, Actuarial Gain (Loss) Benefits paid Defined Benefit Plan, Benefit Obligation, Benefits Paid Foreign currency exchange rate changes Defined Benefit Plan, Benefit Obligation, Foreign Currency Translation Gain (Loss) Benefit obligation at end of year Change in plan assets Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] Fair value of plan assets at beginning of year Defined Benefit Plan, Plan Assets, Amount Actual return on plan assets Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) Benefits paid Defined Benefit Plan, Plan Assets, Benefits Paid Foreign currency exchange rate changes Defined Benefit Plan, Plan Assets, Foreign Currency Translation Gain (Loss) Fair value of plan assets at end of year Funded status of the plan Defined Benefit Plan, Funded (Unfunded) Status of Plan Amounts recognized in the consolidated balance sheets Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position [Abstract] Noncurrent assets Assets for Plan Benefits, Defined Benefit Plan Current liabilities Liability, Defined Benefit Pension Plan, Current Noncurrent liabilities Liability, Defined Benefit Pension Plan, Noncurrent Net amounts recognized Defined Benefit Plan, Amounts for Asset (Liability) Recognized in Statement of Financial Position Amounts recognized in other comprehensive income Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss) [Abstract] Net transition obligation Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Transition Asset (Obligation), before Tax Prior service cost Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax Net actuarial loss Defined Benefit Plan, Accumulated Other Comprehensive Income (Loss), Gain (Loss), before Tax Total amount recognized Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, before Tax Deferred taxes Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Tax Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Tax Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax Schedule of Inventory Schedule of Inventory, Current [Table Text Block] Long-term debt Capital leases Capital Lease Obligations Total borrowings Long-term Debt and Capital Lease Obligations, Including Current Maturities Less current portion Quarterly information (unaudited) Quarterly Financial Information [Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate, Type [Domain] Change in Accounting Estimate, Type [Domain] Restructuring Activities Restructuring Activities [Member] Restructuring Activities [Member] Stock grants Stock Retainer Grants [Member] Stock Retainer Grants [Member] Income Statement Location [Domain] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Stock-based compensation expense Allocated Share-based Compensation Expense Summary of Valuation Allowance Summary of Valuation Allowance [Table Text Block] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Pension and Other Postretirement Adjustments Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Changes in Fair Value of Effective Cash Flow Hedges Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] AOCI Attributable to Parent, Net of Tax [Roll Forward] AOCI Attributable to Parent, Net of Tax [Roll Forward] Equity, beginning balance Other comprehensive income (loss) before reclassifications OCI, before Reclassifications, Net of Tax, Attributable to Parent Amounts reclassified from accumulated other comprehensive income (loss) Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent Equity, ending balance Gross profit Income per share: Quarterly Financial Information Disclosure [Table] Quarterly Financial Information Disclosure [Table] Quarterly Financial Information Disclosure [Table] Income Statement Location [Axis] Quarterly Financial Information Disclosure [Line Items] Quarterly Financial Information Disclosure [Line Items] Quarterly Financial Information Disclosure [Line Items] Additional tax expense as the result of tax reform Risks and Uncertainties [Abstract] Financial Instruments and Concentration of Credit Risks Concentration Risk Disclosure [Text Block] Fiscal 2019 Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months Fiscal 2020 Defined Benefit Plan, Expected Future Benefit Payment, Year Two Fiscal 2021 Defined Benefit Plan, Expected Future Benefit Payment, Year Three Fiscal 2022 Defined Benefit Plan, Expected Future Benefit Payment, Year Four Fiscal 2023 Defined Benefit Plan, Expected Future Benefit Payment, Year Five Fiscal Years 2024-2028 Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter Changes in Accumulated Other Comprehensive Income (Loss) by Component Comprehensive Income (Loss) Note [Text Block] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Business Acquisition, Pro Forma Information Business Acquisition, Pro Forma Information [Table Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Environmental Remediation Site [Axis] Environmental Remediation Site [Axis] Environmental Remediation Site [Domain] Environmental Remediation Site [Domain] Nashville, TN Nashville, TN [Member] Nashville, TN [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Rental expense under operating leases Operating Leases, Rent Expense, Net Estimated environmental liabilities range Accrual for Environmental Loss Contingencies Creditable taxes (value added taxes) Value Added Tax Receivable, Current Vendor inventory deposits (prepaid) Prepaid Vendor Inventory Deposits, Current Prepaid Vendor Inventory Deposits, Current Prepaid income taxes Prepaid Taxes Prepaid insurance Prepaid Insurance Other Other Assets, Miscellaneous, Current Other current assets Property, Plant and Equipment [Abstract] Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Current Liabilities Other Current Liabilities [Member] Other Noncurrent Liabilities Other Noncurrent Liabilities [Member] Land Land [Member] Land Improvements Land Improvements [Member] Software Development Software Development [Member] Construction-in-Progress Construction in Progress [Member] Software and Software Development Costs [Member] Software and Software Development Costs [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, Plant and Equipment, Net, by Type [Abstract] Property, Plant and Equipment, Net, by Type [Abstract] Gross Property, Plant and Equipment, Gross Capitalized Computer Software, Gross Capitalized Computer Software, Gross Capitalized software Capitalized Computer Software, Net Accumulated Depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Net Book Value Depreciation expense Depreciation Proceeds from sale of building in sale leaseback transaction Sale Leaseback Transaction, Gross Proceeds, Investing Activities Lessee lease term (in years) Lessee, Operating Lease, Renewal Term Deferred gain on sale of property Deferred Gain on Sale of Property Sale leaseback transaction, annual rental payments Sale Leaseback Transaction, Annual Rental Payments Subsequent rent increases every five years, percent Sale Leaseback Transaction, Annual Rental Payments, Incremental Increase Every Five Years, Percent Sale Leaseback Transaction, Annual Rental Payments, Incremental Increase Every Five Years, Percent Fixed Income Securities Other Other Investments [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Plan Asset Measurement [Domain] Fair Value Hierarchy and NAV [Domain] Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Level 3 Fair Value, Inputs, Level 3 [Member] Actual plan asset allocations Defined Benefit Plan, Plan Assets, Actual Allocation, Percentage Fair value of plan assets at end of year US, Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Domestic Canada/Mexico/Europe/Asia, Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Foreign US, Income tax expense Federal Income Tax Expense (Benefit), Continuing Operations Canada/Mexico/Europe/Asia, Income tax expense Foreign Income Tax Expense (Benefit), Continuing Operations Current income taxes Current Income Tax Expense (Benefit) Deferred income taxes Deferred Income Tax Expense (Benefit) Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Food, Health and Nutrition Industrial Specialties Other Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Goodwill beginning balance Goodwill acquired during period Goodwill, Acquired During Period Goodwill ending balance Pension Plans and Post-retirement Benefits Pension and Other Postretirement Benefits Disclosure [Text Block] Net noncurrent deferred tax assets Deferred Income Tax Assets, Net Net noncurrent deferred tax liabilities Deferred Tax Liabilities, Net Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Net sales Sales Revenue, Net [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Top 10 Customers Top 10 Customers [Member] Top 10 Customers [Member] Concentration Risk by Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Concentration Risk [Line Items] Concentration Risk [Line Items] Percentage of concentration risk Concentration Risk, Percentage Schedule of Reconciliation of Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Goodwill Goodwill Disclosure [Text Block] Statement of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Amortization of deferred financing charges Deferred income tax provision Gain on sale of building Gain (Loss) on Disposition of Property Plant Equipment Share-based compensation Share-based Compensation Changes in assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Contract termination fee received Gain (Loss) on Contract Termination Accounts receivable Increase (Decrease) in Accounts Receivable Inventories Increase (Decrease) in Inventories Other current assets Increase (Decrease) in Other Current Assets Other current liabilities Increase (Decrease) in Other Current Liabilities Other long-term assets and liabilities, net Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net Net cash provided from operating activities Cash flows used for investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from sale leaseback Sale Leaseback Transaction, Net Proceeds, Investing Activities Proceeds from sale of building Proceeds from Sale of Buildings Acquisition of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Net cash used for investing activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from exercise of stock options Proceeds from Stock Options Exercised Long-term debt borrowings Proceeds from Issuance of Long-term Debt Long-term debt repayments Repayments of Long-term Debt Deferred financing costs Payments of Financing Costs Excess tax benefits from exercise of stock options Excess Tax Benefit from Share-based Compensation, Financing Activities Taxes paid related to net share settlement of equity awards Payments Related to Tax Withholding for Share-based Compensation Dividends paid Net cash (used for) provided by financing activities Net Cash Provided by (Used in) Financing Activities Effect of foreign exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net change in cash Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Assets received as part of the supply agreement termination Contribution of Property, Received in Supply Agreement Termination Contribution of Property, Received in Supply Agreement Termination Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Developed technology and application patents Developed Technology and Application Patents [Member] Developed Technology and Application Patents [Member] Trade names and license agreements Trade Names and License Agreements [Member] Trade Names and License Agreements [Member] Noncompete agreements Noncompete Agreements [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Total intangibles Finite-Lived Intangible Assets, Net Deferred income taxes Deferred financing costs, net of accumulated amortization of $4,331 for 2018 and $3,902 for 2017 (see note 11) Debt Issuance Costs, Line of Credit Arrangements, Net Other assets Other Assets, Miscellaneous, Noncurrent Total other assets Other Assets, Noncurrent Intangible and other assets, noncurrent Useful life (years) Intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Deferred financing costs, accumulated amortization Accumulated Amortization, Debt Issuance Costs Schedule of Future Minimum Rental Payments for Operating Leases Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Segment Reporting Segment Reporting Disclosure [Text Block] Earnings per share (EPS) Earnings Per Share [Text Block] Basis of Statement Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Amortization expense for intangible assets Amortization of Intangible Assets Other Current Liabilities Short-Term Borrowings, Long-Term Debt, and Interest Expense Debt Disclosure [Text Block] Total of service cost and interest cost Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components Post-retirement benefit obligation Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation Total of service cost and interest cost Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components Post-retirement benefit obligation Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Intangibles and Other Assets Intangibles and Other Assets [Table Text Block] Intangibles and Other Assets [Table Text Block] Amortization Expense For the Next Five Years Related to Intangibles Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Income Taxes Income Tax Disclosure [Text Block] Statement [Table] Common Stock Common Stock [Member] Retained Earnings (Deficit) Retained Earnings [Member] Paid-in Capital/Common Stock Held in Treasury Additional Paid-in Capital [Member] Accumulated Other Comprehensive Income/(Loss) Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Equity, beginning balance (in shares) Shares, Outstanding Other comprehensive income (loss), net of tax of $646 in 2018, $241 in 2017 and ($725) in 2016 Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock Issued During Period, Value, Stock Options Exercised Stock Issued During Period, Value, Stock Options Exercised Deferred Tax Liability, Intra-entity Transfer, Asset Other than Inventory Deferred Tax Liability, Intra-entity Transfer, Asset Other than Inventory Proceeds from stock award exercises and issuances Stock Issued During Period, Value, Share-based Compensation, Gross Share-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Excess tax benefits from exercise of stock options Adjustments to Additional Paid in Capital, Income Tax Deficiency from Share-based Compensation Common stock repurchases (in shares) Common stock repurchases Restricted stock forfeitures (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Restricted stock forfeitures Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Dividends declared ($1.92 per share)(d) Dividends, Cash Equity, ending balance (in shares) Supply Commitment, Contract Termination Agreement, Consideration Supply Commitment, Contract Termination Agreement, Consideration Supply Commitment, Contract Termination Agreement, Consideration Supply Commitment, Contract Termination Agreement, Cash Proceeds Supply Commitment, Contract Termination Agreement, Cash Proceeds Supply Commitment, Contract Termination Agreement, Cash Proceeds Deferred contract termination fee, current Deferred contract termination fee, noncurrent SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Valuation Allowance of Deferred Tax Assets SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Deferred taxes valuation allowances, beginning balance SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Charged/ (credited) to costs and expenses SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Deductions (Bad debts) SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction (Credited) to Goodwill SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment Deferred taxes valuation allowances, ending balance Schedule of Goodwill Schedule of Goodwill [Table Text Block] Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table] Acquired Finite-Lived Intangible Assets [Line Items] Acquired Finite-Lived Intangible Assets [Line Items] Finite-lived intangible assets acquired Finite-lived Intangible Assets Acquired Property, Plant and Equipment, net Property, Plant and Equipment Disclosure [Text Block]