| Document and Entity Information - USD ($) | 12 Months Ended | ||
| Dec. 31, 2021 | Feb. 18, 2022 | Jun. 30, 2021 | |
| Document Information [Line Items] | |||
| Document Type | 10-K/A | ||
| Amendment Flag | true | ||
| Document Period End Date | Dec. 31, 2021 | ||
| Document Fiscal Year Focus | 2021 | ||
| Document Fiscal Period Focus | FY | ||
| Entity Registrant Name | Uniti Group Inc. | ||
| Entity Central Index Key | 0001620280 | ||
| Current Fiscal Year End Date | --12-31 | ||
| Entity Filer Category | Large Accelerated Filer | ||
| Entity Well-known Seasoned Issuer | Yes | ||
| Entity Current Reporting Status | Yes | ||
| Entity Voluntary Filers | No | ||
| Entity Common Stock, Shares Outstanding | 236,325,229 | ||
| Entity Public Float | $ 1,514,665,270 | ||
| Entity Shell Company | false | ||
| Entity Emerging Growth Company | false | ||
| Entity Small Business | false | ||
| Entity File Number | 001-36708 | ||
| Entity Incorporation, State or Country Code | MD | ||
| Entity Tax Identification Number | 46-5230630 | ||
| Entity Address, Address Line One | 2101 Riverfront Drive | ||
| Entity Address, Address Line Two | Suite A | ||
| Entity Address, City or Town | Little Rock | ||
| Entity Address, State or Province | AR | ||
| Entity Address, Postal Zip Code | 72202 | ||
| City Area Code | 501 | ||
| Local Phone Number | 850-0820 | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Entity Interactive Data Current | Yes | ||
| ICFR Auditor Attestation Flag | true | ||
| Auditor Name | KPMG LLP | ||
| Auditor Location | Dallas, Texas | ||
| Auditor Firm ID | 185 | ||
| Title of each class | Common Stock, $0.0001 Par Value | ||
| Trading Symbol | UNIT | ||
| Name of each exchange on which registered | NASDAQ | ||
| Amendment Description | Uniti Group Inc. (the “Company”) is filing this Amendment No. 1 on Form 10-K/A (the “Amended 10-K”) to its Annual Report for the year ended December 31, 2021 (the “Original 10-K”) filed with the U.S. Securities and Exchange Commission on February 25, 2022 to include financial statements and related notes of Windstream Holdings, Inc., Windstream Holdings II, LLC, its successor in interest, and consolidated subsidiaries (collectively, “Windstream”), the Company’s most significant customer. For the years ended December 31, 2021, 2020 and 2019, 66.4%, 65.8% and 65.0% of our revenues, respectively, were derived from leasing the Company’s fiber and copper networks and other real estate to Windstream. The Original 10-K is being amended by this Amended 10-K to include as exhibits: (i) the Windstream audited financial statements as of December 31, 2021, and for the year ended December 31, 2021, as of December 31, 2020 and for the period from September 22, 2020 to December 31, 2020 and for the period from January 1, 2020 to September 21, 2020 and for the year ended December 31, 2019, prepared in accordance with generally accepted accounting principles in the United States, (ii) the consent of the independent registered public accounting firm of Windstream and (iii) certifications by our Chief Executive Officer and Chief Financial Officer. This Amended 10-K does not otherwise update any exhibits as originally filed and does not otherwise reflect events that occurred after the filing date of the Original 10-K. | ||
| Documents Incorporated by Reference | Portions of the Registrant’s definitive proxy statement relating to the 2022 annual meeting of stockholders are incorporated by reference into Part III of this Annual Report on Form 10-K. |
