| COVER PAGE COVER PAGE | Nov. 03, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Nov. 3, 2021 |
| Entity Registrant Name | N-able, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-40297 |
| Entity Tax Identification Number | 85-4069861 |
| Entity Address, Address Line One | 301 Edgewater Dr |
| Entity Address, Address Line Two | Suite 306 |
| Entity Address, City or Town | Wakefield |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 01880 |
| City Area Code | 781 |
| Local Phone Number | 328-6490 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.001 par value |
| Trading Symbol | NABL |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001834488 |
| Amendment Flag | false |
