| Cover | Jul. 28, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jul. 28, 2021 |
| Entity File Number | 001-38267 |
| Entity Registrant Name | RIBBON COMMUNICATIONS INC. |
| Entity Central Index Key | 0001708055 |
| Entity Tax Identification Number | 82-1669692 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 6500 Chase Oaks Blvd. |
| Entity Address, Address Line Two | Suite 100 |
| Entity Address, City or Town | Plano |
| Entity Address, State or Province | TX |
| Entity Address, Postal Zip Code | 75023 |
| City Area Code | 978 |
| Local Phone Number | 614-8100 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.0001 |
| Trading Symbol | RBBN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
