Segments - Schedule of Capital Expenditures by Segment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Total	$ 787.8	$ 354.8	$ 417.0
Operating Segments
Segment Reporting Information [Line Items]
Total	756.3	354.7	417.0
Corporate
Segment Reporting Information [Line Items]
Total	31.5	0.1	0.0
Kinetic | Operating Segments
Segment Reporting Information [Line Items]
Total	386.0	0.0	0.0
Uniti Solutions | Operating Segments
Segment Reporting Information [Line Items]
Total	13.0	0.0	0.0
Fiber Infrastructure | Operating Segments
Segment Reporting Information [Line Items]
Total	$ 357.3	$ 354.7	$ 417.0