Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 01, 2019
Cover [Abstract]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Trading Symbol UNIT  
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 Common Stock, Shares Outstanding   193,275,587
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Entity Small Business false  
Entity Emerging Growth Company false  
Title of 12(b) Security Common Stock  
Security Exchange Name NASDAQ  
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  
Document Quarterly Report true  
Document Transition Report false