| Cover Page | May 05, 2021 |
| Cover [Abstract] | |
| Title of 12(b) Security | Common Stock, par value $0.001 per share |
| Pre-commencement Issuer Tender Offer | false |
| Pre-commencement Tender Offer | false |
| Soliciting Material | false |
| Written Communications | false |
| Document Type | 8-K |
| Entity Incorporation, State or Country Code | DE |
| Entity Central Index Key | 0001337553 |
| Amendment Flag | false |
| Entity File Number | 001-36152 |
| Entity Tax Identification Number | 20-3109565 |
| Document Period End Date | May 5, 2021 |
| Entity Registrant Name | Aerie Pharmaceuticals, Inc. |
| Entity Address, Address Line One | 4301 Emperor Boulevard, Suite 400 |
| Entity Address, City or Town | Durham |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 27703 |
| City Area Code | 919 |
| Local Phone Number | 237-5300 |
| Trading Symbol | AERI |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
