| Cover | Aug. 25, 2023 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Aug. 25, 2023 |
| Entity Registrant Name | LIVE OAK BANCSHARES, INC. |
| Entity Incorporation, State or Country Code | NC |
| Entity File Number | 001-37497 |
| Entity Tax Identification Number | 26-4596286 |
| Entity Address, Address Line One | 1741 Tiburon Drive, |
| Entity Address, City or Town | Wilmington, |
| Entity Address, State or Province | NC |
| Entity Address, Postal Zip Code | 28403 |
| City Area Code | 910 |
| Local Phone Number | 790-5867 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Voting Common Stock, no par value per share |
| Trading Symbol | LOB |
| Security Exchange Name | NYSE |
| Entity Emerging Growth Company | false |
| Amendment Flag | false |
| Entity Central Index Key | 0001462120 |
