| Document and Entity Information Document | Aug. 23, 2019 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Aug. 23, 2019 |
| Entity Registrant Name | Axon Enterprise, Inc. |
| Entity Central Index Key | 0001069183 |
| Amendment Flag | false |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-16391 |
| Entity Tax Identification Number | 86-0741227 |
| Entity Address, Address Line One | 17800 N. 85th St. |
| Entity Address, City or Town | Scottsdale |
| Entity Address, State or Province | AZ |
| Entity Address, Postal Zip Code | 85255 |
| City Area Code | 480 |
| Local Phone Number | 991-0797 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.00001 Par Value |
| Trading Symbol | AAXN |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
