Schedule I – Condensed Financial Information of The Registrant (Parent Company) - Condensed Statements of Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Costs and expenses:
Total costs and expenses	$ 1,972.5	$ 579.9	$ 771.9
Operating loss	262.0	587.0	377.9
Other expense, net	8.1	0.3	(18.4)
Gain on settlement of preexisting relationships	1,683.9	0.0	0.0
Earnings (loss) from consolidated subsidiaries	0.0	0.0	2.7
Income tax benefit (expense)	(136.5)	(17.5)	(68.5)
Net income (loss) attributable to shareholders	1,304.7	93.4	(81.7)
Comprehensive income (loss)	1,303.4	92.8	(81.7)
Uniti Group Inc.
Costs and expenses:
General and administrative expenses	0.0	0.1	0.1
Total costs and expenses	0.0	0.1	0.1
Operating loss	0.0	(0.1)	(0.1)
Other expense, net	(0.1)	0.0	0.0
Gain on settlement of preexisting relationships	499.1	0.0	0.0
Earnings (loss) from consolidated subsidiaries	543.1	118.5	(57.8)
Interest expense	(14.5)	(24.8)	(24.6)
Income (loss) before income taxes	1,027.6	93.6	(82.5)
Income tax benefit (expense)	277.1	(0.2)	0.8
Net income (loss) attributable to shareholders	1,304.7	93.4	(81.7)
Comprehensive income (loss)	$ 1,303.4	$ 92.8	$ (81.7)