Restatement of Previously Issued Financial Statements - Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Dec. 31, 2022
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Goodwill	$ 157,380		$ 157,380	$ 157,380
Deferred income tax assets, net	124,077		109,128	103,827
Total Assets	5,098,671		5,025,129	4,943,362
Distributions in excess of accumulated earnings	(3,708,705)		(3,708,240)	(3,703,515)
Total Uniti shareholders' deficit	(2,477,273)		(2,486,392)	(2,484,676)
Operating partnership units	716		2,021	2,023
Total shareholders' deficit	(2,476,307)	$ (2,492,414)	(2,484,121)	(2,482,403)	$ (2,331,244)	$ (2,271,206)
Total Liabilities and Shareholders' Deficit	$ 5,098,671		$ 5,025,129	4,943,362
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Goodwill				208,378
Deferred income tax assets, net				90,792
Total Assets				4,981,325
Distributions in excess of accumulated earnings				(3,665,569)
Total Uniti shareholders' deficit				(2,446,730)
Operating partnership units				2,040
Total shareholders' deficit				(2,444,440)
Total Liabilities and Shareholders' Deficit				4,981,325
Adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Goodwill				(50,998)
Deferred income tax assets, net				13,035
Total Assets				(37,963)
Distributions in excess of accumulated earnings				(37,946)
Total Uniti shareholders' deficit				(37,946)
Operating partnership units				(17)
Total shareholders' deficit				(37,963)
Total Liabilities and Shareholders' Deficit				$ (37,963)