| Document and Entity Information | Nov. 13, 2024 |
| Cover [Abstract] | |
| Entity Address, State or Province | UT |
| Amendment Flag | false |
| Entity Central Index Key | 0001841804 |
| Current Fiscal Year End Date | --12-31 |
| Document Type | 8-K |
| Document Period End Date | Nov. 13, 2024 |
| Entity Registrant Name | INSTRUCTURE HOLDINGS, INC. |
| Entity Incorporation State Country Code | DE |
| Entity File Number | 001-40647 |
| Entity Tax Identification Number | 84-4325548 |
| Entity Address, Address Line One | 6330 SOUTH 3000 EAST |
| Entity Address, Address Line Two | SUITE 700 |
| Entity Address, City or Town | SALT LAKE CITY |
| Entity Address, Postal Zip Code | 84121 |
| City Area Code | 800 |
| Local Phone Number | 203-6755 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Security 12b Title | Common Stock, $0.01 par value |
| Trading Symbol | INST |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
