Entity tax identification number Entity Tax Identification Number Rollover contributions EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Maximum Maximum [Member] Forfeited nonvested account, decrease from administrative expense EBP, Forfeited Nonvested Account, Decrease from Administrative Expense Employer contribution vesting period EBP, Employer Contribution Vesting Service Period EBP, Employer Contribution Vesting Service Period Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Mutual Funds and Money Market Funds Mutual Fund Mutual Fund [Member] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Maximum annual compensation to total compensation, percentage EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] Total deductions from net assets EBP, Change in Net Asset Available for Benefit, Decrease Maximum borrowing, amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Minimum borrowing, amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Change in contributions receivable EBP, Reconciliation To Form 5500, Change In Net Asset Available For Benefit, Increase (Decrease) In Contributions Receivable EBP, Reconciliation To Form 5500, Change In Net Asset Available For Benefit, Increase (Decrease) In Contributions Receivable Accrued expenses EBP, Accrued Expense EBP, Fully Benefit-Responsive Investment Contract [Abstract] Investments, at fair value (Note 3) Investments at Fair Value EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Level 1 Fair Value, Inputs, Level 1 [Member] EBP, Reconciliation of Financial Statement to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] Fully Benefit-Responsive Investment Contract EBP, Fully Benefit-Responsive Investment Contract [Text Block] EBP, Investment, Fair Value and NAV [Abstract] Assets EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Additions to Net Assets EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Payment of Benefits EBP, Payment to Participant [Policy Text Block] Net transfers of assets to this plan (Note 1) EBP, Change in Net Asset Available for Benefit, Transfer to (from) Plan Amendment Flag Amendment Flag Company Dividends EBP, Dividends [Text Block] EBP, Dividends Basis of Accounting EBP, Basis of Accounting [Policy Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Accrued Expenses EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Accrued Expenses EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Accrued Expenses Investment, number of shares (in shares) EBP, Investment, Number of Shares EBP, Description of Plan and Accounting Change [Abstract] Receivables EBP, Receivable [Abstract] EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] EBP, Contribution [Abstract] Investments [Domain] Investments [Domain] Change in accrued expenses EBP, Reconciliation To Form 5500, Change In Net Asset Available For Benefit, Increase (Decrease) In Accrued Expenses EBP, Reconciliation To Form 5500, Change In Net Asset Available For Benefit, Increase (Decrease) In Accrued Expenses Use of Estimates EBP, Use of Estimate [Policy Text Block] Maximum number of loans outstanding EBP, Number of Maximum Loans Outstanding EBP, Number of Maximum Loans Outstanding Schedule of Asset Held for Investment EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] General loan, borrowing term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term Purchases of Insurance Contracts EBP, Purchases of Insurance Contracts [Policy Text Block] EBP, Purchases of Insurance Contracts Concentration of Investments EBP, Risk and Uncertainty [Text Block] Employer contributions EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash EBP, Number of Defined Contribution Plans EBP, Number of Defined Contribution Plans EBP, Number of Defined Contribution Plans EBP, Risk and Uncertainty EBP, Risk and Uncertainty [Table Text Block] Minimum Minimum [Member] Investment Type [Axis] Investment Type [Axis] Interest on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Total contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Participant contributions EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Interest and dividends EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Plan number EBP, Plan Number Involuntary cash-out limit EBP, Involuntary Cash-out Limit EBP, Involuntary Cash-out Limit EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Description of the Plan EBP, Description of Plan [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Contributions EBP, Contribution [Policy Text Block] Rayonier Advanced Materials Inc. Common Stock EBP, Employer, Common Stock [Member] EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Less: Contributions receivable EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Contributions Receivable EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Contributions Receivable Total additions to net assets EBP, Change in Net Asset Available for Benefit, Increase Investment Income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment, Identifier [Axis] Investment, Identifier [Axis] Employer contribution, vesting percentage EBP, Employer Contribution Vesting Percentage EBP, Employer Contribution Vesting Percentage Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Total assets EBP, Asset Held for Investment Risks and Uncertainties EBP, Risk and Uncertainty [Policy Text Block] Document Information [Line Items] Document Information [Line Items] EBP, Risk and Uncertainty [Line Items] EBP, Risk and Uncertainty [Line Items] Primary residence, borrowing term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Table] Participant compensation matched, percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] Percentage of employer stock to total shares outstanding EBP, Investment, Employer, Common Stock, to Total Asset, Percentage Net income per Form 5500 EBP, Form 5500 Caption, Net Income (Loss) EBP, Contribution [Table] EBP, Contribution [Table] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Tax Status [Table] EBP, Tax Status [Table] Net increase before transfers of assets to this plan Increase in net assets available for benefits before transfers per the financial statements EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Party-in-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP 031 EBP 031 [Member] EBP 031 Maximum borrowing period EBP, Note Receivable from Participant, Account, Maximum Borrowing, Period EBP, Note Receivable from Participant, Account, Maximum Borrowing, Period EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Total receivables EBP, Receivable Employer contributions EBP, Employer Contribution, Receivable Automatic deferral rate EBP, Participant Contribution, Automatic, Deferral Rate Distributions to participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Total investments EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Guaranteed Interest Account EBP, Guaranteed Interest Account [Member] EBP, Guaranteed Interest Account EBP, Tax Status [Abstract] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] Participant compensation matched, minimum service period EBP, Requisite Service Period EBP, Requisite Service Period EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] Operating Expenses EBP, Expense [Policy Text Block] Reconciliation of Financial Statements to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Participant Loans EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Investment Valuation and Income Recognition EBP, Investment [Policy Text Block] Participant contributions EBP, Participant Contribution, Receivable Total Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Document Type Document Type Plan Termination EBP, Plan Termination [Text Block] Entity Central Index Key Entity Central Index Key Fixed interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Investments EBP, Investment, Fair and Contract Value [Abstract] Collective Trusts Common Collective Trust [Member] EBP, Risk and Uncertainty [Abstract] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] Deductions from Net Assets EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Forfeitures EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Income earned on funds EBP, Forfeited Nonvested Account, Income Earned on Funds EBP, Forfeited Nonvested Account, Income Earned on Funds Notes receivable from participants EBP, Note Receivable from Participant Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Summary of Significant Accounting Policies EBP, Summary of Accounting Policy [Text Block] Entity Registrant Name Entity Registrant Name Liabilities EBP, Liability [Abstract] Employer contribution, nonelective percentage EBP, Employer Contribution, Nonelective, Percentage EBP, Employer Contribution, Nonelective, Percentage Subsequent Events EBP, Subsequent Event [Policy Text Block] Tax Status EBP, Tax Status [Text Block] EBP, Contribution [Line Items] EBP, Contribution [Line Items] Maximum borrowing, to total account, percentage EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Investment EBP, Risk and Uncertainty, Concentration of Investment at Fair Value to Total Investments, Percentage Document Information [Table] Document Information [Table] Notes Receivable from Participants EBP, Note Receivable from Participant [Policy Text Block] Total investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Level 3 Fair Value, Inputs, Level 3 [Member] Net Assets Available for Benefits Beginning of year End of year Net assets available for benefits per the financial statements EBP, Net Asset Available for Benefit Total investments EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value Entity [Domain] Entity [Domain] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Investments, at contract value (Note 4) EBP, Investment, Excluding Plan Interest in Master Trust, Contract Value Forfeited nonvested account EBP, Forfeited Nonvested Account Matching percentage EBP, Employer Contribution, Matching Percentage Automatic deferral rate, annual increase EBP, Participant Contribution, Automatic, Annual Increase Deferral Rate EBP, Participant Contribution, Automatic, Annual Increase Deferral Rate Net assets available for benefits per Form 5500 EBP, Form 5500 Caption, Net Assets NAV Fair Value Measured at Net Asset Value Per Share [Member] EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items]