v3.26.1
Revenues - Schedule of Revenues Disaggregated by Category (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disaggregation Of Revenue [Line Items]    
Operating lease income $ 78.9 $ 234.4
Other service and sales revenues 121.5 2.7
Total revenues and sales 987.5 293.9
Fiber subscriber    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 130.9 0.0
DSL subscriber and other    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 135.2 0.0
Managed services    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 175.4 0.0
TDM    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 8.0 0.0
Business services    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 99.4 0.0
Switched access    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 3.5 0.0
Uniti Fiber    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 62.2 54.9
Wholesale    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 145.4 1.5
Total service revenues accounted for under ASC 606    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 760.0 56.4
Total revenues and sales 889.0 290.8
Sales revenues    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 27.1 0.4
Total revenues and sales 98.5 3.1
Total revenues and sales accounted for under ASC 606    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 787.1 56.8
Kinetic    
Disaggregation Of Revenue [Line Items]    
Operating lease income 25.6 0.0
Other service and sales revenues 40.2 0.0
Total revenues and sales 536.9 0.0
Kinetic | Fiber subscriber    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 130.9 0.0
Kinetic | DSL subscriber and other    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 135.2 0.0
Kinetic | Managed services    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Kinetic | TDM    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Kinetic | Business services    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 99.4 0.0
Kinetic | Switched access    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 3.5 0.0
Kinetic | Uniti Fiber    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Kinetic | Wholesale    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 77.0 0.0
Kinetic | Total service revenues accounted for under ASC 606    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 446.0 0.0
Total revenues and sales 511.8 0.0
Kinetic | Sales revenues    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 25.1 0.0
Total revenues and sales 25.1 0.0
Kinetic | Total revenues and sales accounted for under ASC 606    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 471.1 0.0
Uniti Solutions    
Disaggregation Of Revenue [Line Items]    
Operating lease income 0.1 0.0
Other service and sales revenues 6.2 0.0
Total revenues and sales 190.5 0.0
Uniti Solutions | Fiber subscriber    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Uniti Solutions | DSL subscriber and other    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Uniti Solutions | Managed services    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 175.4 0.0
Uniti Solutions | TDM    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 8.0 0.0
Uniti Solutions | Business services    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Uniti Solutions | Switched access    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Uniti Solutions | Uniti Fiber    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Uniti Solutions | Wholesale    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Uniti Solutions | Total service revenues accounted for under ASC 606    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 183.4 0.0
Total revenues and sales 189.7 0.0
Uniti Solutions | Sales revenues    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.8 0.0
Total revenues and sales 0.8 0.0
Uniti Solutions | Total revenues and sales accounted for under ASC 606    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 184.2 0.0
Fiber Infrastructure    
Disaggregation Of Revenue [Line Items]    
Operating lease income 53.2 234.4
Other service and sales revenues 75.1 2.7
Total revenues and sales 260.1 293.9
Fiber Infrastructure | Fiber subscriber    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Fiber Infrastructure | DSL subscriber and other    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Fiber Infrastructure | Managed services    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Fiber Infrastructure | TDM    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Fiber Infrastructure | Business services    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Fiber Infrastructure | Switched access    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 0.0 0.0
Fiber Infrastructure | Uniti Fiber    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 62.2 54.9
Fiber Infrastructure | Wholesale    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 68.4 1.5
Fiber Infrastructure | Total service revenues accounted for under ASC 606    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 130.6 56.4
Total revenues and sales 187.5 290.8
Fiber Infrastructure | Sales revenues    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 1.2 0.4
Total revenues and sales 72.6 3.1
Fiber Infrastructure | Total revenues and sales accounted for under ASC 606    
Disaggregation Of Revenue [Line Items]    
Total revenues and sales accounted for under ASC 606 $ 131.8 $ 56.8