| Cover Page | May 04, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | May 4, 2021 |
| Entity File Number | 001-36285 |
| Entity Incorporation, State or Country Code | DE |
| Entity Tax Identification Number | 46-4559529 |
| Entity Registrant Name | Rayonier Advanced Materials Inc. |
| 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 |
| Title of 12(b) Security | Common Stock, $0.01 par value |
| Trading Symbol | RYAM |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001597672 |
