| Cover | Mar. 01, 2021 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Mar. 1, 2021 |
| Entity Registrant Name | Uniti Group Inc. |
| Entity Central Index Key | 0001620280 |
| Entity Emerging Growth Company | false |
| Entity File Number | 001-36708 |
| Entity Incorporation, State or Country Code | MD |
| Entity Tax Identification Number | 46-5230630 |
| Entity Address, Address Line One | 10802 Executive Center Drive |
| Entity Address, Address Line Two | Benton Building Suite 300 |
| Entity Address, City or Town | Little Rock |
| Entity Address, State or Province | AR |
| Entity Address, Postal Zip Code | 72211 |
| City Area Code | 501 |
| Local Phone Number | 850-0820 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock |
| Trading Symbol | UNIT |
| Security Exchange Name | NASDAQ |
