v3.26.1
Fair Value Measurements (Details) - EBP 033 - USD ($)
Dec. 31, 2025
Dec. 31, 2024
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value $ 61,128,687 $ 52,112,425
Total    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 14,469,393 49,698,289
Total | Rayonier Advanced Materials Inc. Common Stock    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 2,018,183 2,829,284
Total | Mutual Funds and Money Market Funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 12,451,210 46,869,005
Level 1    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 14,469,393 49,698,289
Level 1 | Rayonier Advanced Materials Inc. Common Stock    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 2,018,183 2,829,284
Level 1 | Mutual Funds and Money Market Funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 12,451,210 46,869,005
Level 2    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 0 0
Level 2 | Rayonier Advanced Materials Inc. Common Stock    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 0 0
Level 2 | Mutual Funds and Money Market Funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 0 0
Level 3    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 0 0
Level 3 | Rayonier Advanced Materials Inc. Common Stock    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 0 0
Level 3 | Mutual Funds and Money Market Funds    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value 0 0
NAV | Collective Trusts    
EBP, Investment, Fair Value and NAV [Line Items]    
Investments at Fair Value $ 46,659,294 $ 2,414,136