Schedule I - Condensed Financial Information of The Registrant (Parent Company) - Condensed Statements of Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Costs and Expenses:
Interest expense	$ 497,128	$ 390,112	$ 319,591
General and administrative expense	104,975	102,900	85,198
Other expense	(11,703)	31,463	4,504
Total costs and expenses	1,801,154	1,042,040	1,006,510
(Loss) Earnings from consolidated subsidiaries	98
(Loss) income before income taxes and equity in earnings (loss) from unconsolidated entities	(734,113)	15,571	11,124
Income tax (benefit) expense	(15,203)	4,663	(5,421)
Net (loss) income attributable to shareholders	(706,301)	10,582	16,187
Comprehensive (loss) income attributable to shareholders	(703,226)	(42,639)	38,472
Uniti Group Inc.
Costs and Expenses:
General and administrative expense	42	36	22
Transaction related costs	101	2,138
Total costs and expenses	143	2,174	22
Operating loss	(143)	(2,174)	(22)
(Loss) Earnings from consolidated subsidiaries	(708,139)	24,730	16,209
(Loss) income before income taxes and equity in earnings (loss) from unconsolidated entities	(708,282)	22,556	16,187
Income tax (benefit) expense	(1,981)	11,974
Net (loss) income attributable to shareholders	(706,301)	10,582	16,187
Comprehensive (loss) income attributable to shareholders	$ (703,226)	$ (42,639)	$ 38,472