Segment Information - Schedule of Segment Reporting Information (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jan. 31, 2024	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Revenues		$ 292,247	$ 290,655	$ 873,612	$ 864,175
Adjusted EBITDA		235,324	233,010	700,611	692,378
Interest expense		131,007	120,691	381,693	389,243
Depreciation and amortization		79,325	77,337	234,862	231,379
Transaction related and other costs		14,404	1,441	31,068	9,805
Gain on sale of real estate	$ (19,000)	0	(1,424)	(18,999)	(1,424)
Goodwill impairment		0	203,998	0	203,998
Other, net		918	2,091	3,877	23,073
Stock-based compensation		3,375	3,148	10,120	9,408
Income tax benefit		(5,935)	(56,130)	(13,869)	(62,899)
Adjustments for equity in earnings from unconsolidated entities			754		2,264
Net income (loss)		12,230	(118,896)	71,859	(112,469)
Corporate
Segment Reporting Information [Line Items]
Adjusted EBITDA		(5,421)	(5,408)	(16,593)	(16,413)
Depreciation and amortization		13	13	40	43
Uniti Leasing | Operating Segments
Segment Reporting Information [Line Items]
Revenues		222,922	214,588	658,829	637,849
Adjusted EBITDA		215,188	208,561	636,718	620,079
Depreciation and amortization		45,281	44,754	134,874	133,617
Uniti Fiber
Segment Reporting Information [Line Items]
Goodwill impairment			204,000
Uniti Fiber | Operating Segments
Segment Reporting Information [Line Items]
Revenues		69,325	76,067	214,783	226,326
Adjusted EBITDA		25,557	29,857	80,486	88,712
Depreciation and amortization		$ 34,031	$ 32,570	$ 99,948	$ 97,719