| COVER PAGE | 6 Months Ended |
| Jun. 30, 2022 | |
| Cover [Abstract] | |
| Document Type | POS AM |
| Entity Registrant Name | N-able, Inc. |
| Entity Incorporation, State or Country Code | DE |
| Entity Primary SIC Number | 7372 |
| Entity Tax Identification Number | 85-4069861 |
| Entity Address, Address Line One | 30 Corporate Dr., Suite |
| Entity Address, City or Town | Burlington |
| Entity Address, State or Province | MA |
| Entity Address, Postal Zip Code | 01803 |
| City Area Code | 781 |
| Local Phone Number | 328-6490 |
| Entity Filer Category | Non-accelerated Filer |
| Entity Small Business | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Entity Central Index Key | 0001834488 |
| Amendment Flag | true |
| Amendment Description | On August 23, 2021, N-able, Inc. (the “Company”) filed a registration statement with the Securities and Exchange Commission (the “SEC”) on Form S-1 (File No. 333-259014) (as amended and supplemented, the “Registration Statement”). The Registration Statement initially registered for resale by the selling stockholders identified in the prospectus an aggregate of up to 20,623,282 shares of the Company’s common stock, par value $0.001 per share (the “Common Stock”). This Post-Effective Amendment No. 2 to Form S-1 on Form S-3 (this “Post-Effective Amendment”) is being filed by the Company to convert the Registration Statement into a registration statement on Form S-3 and contains an updated prospectus relating to the resale of shares of Common Stock from time to time by the selling stockholders named therein. No additional securities are being registered under this Post-Effective Amendment. All applicable registration and filing fees were paid at the time of the original filing of the Registration Statement on August 23, 2021. |
