| Cover | Aug. 13, 2019 |
| Cover page. | |
| Document Type | 8-K |
| Document Period End Date | Aug. 13, 2019 |
| Entity Registrant Name | WORKIVA INC |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 001-36773 |
| Entity Tax Identification Number | 47-2509828 |
| Entity Address, Address Line One | 2900 University Blvd |
| Entity Address, City or Town | Ames |
| Entity Address, State or Province | IA |
| Entity Address, Postal Zip Code | 50010 |
| City Area Code | 888 |
| Local Phone Number | 275-3125 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| Title of 12(b) Security | Class A common stock, par value $.001 |
| Trading Symbol | WK |
| Security Exchange Name | NYSE |
| Entity Central Index Key | 0001445305 |
| Amendment Flag | false |
