| Document and Entity Information | Dec. 07, 2020 |
| Cover [Abstract] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001597672 |
| Document Type | 8-K |
| Document Period End Date | Dec. 7, 2020 |
| Entity Registrant Name | RAYONIER ADVANCED MATERIALS INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-36285 |
| Entity Tax Identification Number | 46-4559529 |
| Entity Address, Address Line One | 1301 Riverplace Boulevard |
| Entity Address, City or Town | Jacksonville |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 32207 |
| City Area Code | (904) |
| Local Phone Number | 357-4600 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common stock, $0.01 par value |
| Trading Symbol | RYAM |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
