| Document and Entity Information | Mar. 16, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 16, 2021 |
| Entity Registrant Name | ADAPTIVE BIOTECHNOLOGIES CORPORATION |
| Entity Central Index Key | 0001478320 |
| Entity Emerging Growth Company | false |
| Entity File Number | 001-38957 |
| Entity Incorporation, State or Country Code | WA |
| Entity Tax Identification Number | 27-0907024 |
| Entity Address, Address Line One | 1551 Eastlake Avenue East |
| Entity Address, Address Line Two | Suite 200 |
| Entity Address, City or Town | Seattle |
| Entity Address, State or Province | WA |
| Entity Address, Postal Zip Code | 98102 |
| City Area Code | (206) |
| Local Phone Number | 659-0067 |
| 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 per share |
| Trading Symbol | ADPT |
| Security Exchange Name | NASDAQ |
