v3.26.1
Segments - Schedule of Segment Reporting Information (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Total revenues and sales $ (987.5) $ (293.9)
Intersegment costs and expenses (876.6) (148.2)
Intersegment Eliminations    
Segment Reporting Information [Line Items]    
Total revenues and sales 47.1 0.0
Operating Segments    
Segment Reporting Information [Line Items]    
Total revenues and sales (1,034.6) (293.9)
Intersegment costs and expenses (47.1) 0.0
Contribution margin 524.0 253.3
Total segment expenses (463.5) (40.6)
Kinetic    
Segment Reporting Information [Line Items]    
Total revenues and sales (536.9) 0.0
Kinetic | Intersegment Eliminations    
Segment Reporting Information [Line Items]    
Total revenues and sales (11.1) 0.0
Kinetic | Operating Segments    
Segment Reporting Information [Line Items]    
Total revenues and sales (548.0) 0.0
Compensation expenses (94.0) 0.0
Non-compensation managed expenses (65.9) 0.0
Revenue-driven costs (53.2) 0.0
Network access and facilities (47.3) 0.0
Allocated network operations expenses (12.0) 0.0
Customer access (6.2) 0.0
Intersegment costs and expenses (33.9) 0.0
Contribution margin 235.5 0.0
Uniti Solutions    
Segment Reporting Information [Line Items]    
Total revenues and sales (190.5) 0.0
Uniti Solutions | Intersegment Eliminations    
Segment Reporting Information [Line Items]    
Total revenues and sales (1.3) 0.0
Uniti Solutions | Operating Segments    
Segment Reporting Information [Line Items]    
Total revenues and sales (191.8) 0.0
Compensation expenses (15.3) 0.0
Non-compensation managed expenses (1.6) 0.0
Revenue-driven costs (27.6) 0.0
Customer access (40.4) 0.0
Intersegment costs and expenses (11.1) 0.0
Contribution margin 95.8 0.0
Fiber Infrastructure    
Segment Reporting Information [Line Items]    
Total revenues and sales (260.1) (293.9)
Fiber Infrastructure | Intersegment Eliminations    
Segment Reporting Information [Line Items]    
Total revenues and sales (34.7) 0.0
Fiber Infrastructure | Operating Segments    
Segment Reporting Information [Line Items]    
Total revenues and sales (294.8) (293.9)
Compensation expenses (19.1) (11.7)
Non-compensation managed expenses (5.0) (3.6)
Revenue-driven costs (9.5) (2.8)
Network access and facilities (60.9) (22.5)
Allocated network operations expenses (2.6) 0.0
Customer access (2.9) 0.0
Intersegment costs and expenses (2.1) 0.0
Contribution margin 192.7 253.3
Service revenues    
Segment Reporting Information [Line Items]    
Total revenues and sales (889.0) (290.8)
Service revenues | Kinetic    
Segment Reporting Information [Line Items]    
Total revenues and sales (511.8) 0.0
Service revenues | Uniti Solutions    
Segment Reporting Information [Line Items]    
Total revenues and sales (189.7) 0.0
Service revenues | Fiber Infrastructure    
Segment Reporting Information [Line Items]    
Total revenues and sales (187.5) (290.8)
Sales revenues    
Segment Reporting Information [Line Items]    
Total revenues and sales (98.5) (3.1)
Sales revenues | Kinetic    
Segment Reporting Information [Line Items]    
Total revenues and sales (25.1) 0.0
Sales revenues | Uniti Solutions    
Segment Reporting Information [Line Items]    
Total revenues and sales (0.8) 0.0
Sales revenues | Fiber Infrastructure    
Segment Reporting Information [Line Items]    
Total revenues and sales $ (72.6) $ (3.1)