Uniti (UNIT) 10-Q 10 May 21 2021 Q1 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2021	Apr. 29, 2021
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Trading Symbol	UNIT
Entity Registrant Name	Uniti Group Inc.
Entity Central Index Key	0001620280
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		233,448,317
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Title of 12(b) Security	Common Stock
Security Exchange Name	NASDAQ
Entity File Number	001-36708
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	46-5230630
Entity Address, Address Line One	10802 Executive Center Drive
Entity Address, Address Line Two	Benton Building Suite 300
Entity Address, City or Town	Little Rock
Entity Address, State or Province	AR
Entity Address, Postal Zip Code	72211
City Area Code	501
Local Phone Number	850-0820
Document Quarterly Report	true
Document Transition Report	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets:
Property, plant and equipment, net	$ 3,329,239	$ 3,273,353
Cash and cash equivalents	122,466	77,534
Accounts receivable, net	51,485	62,952
Goodwill	601,878	601,878
Intangible assets, net	387,013	390,725
Straight-line revenue receivable	19,557	13,107
Other assets, net	108,208	152,883
Investment in unconsolidated entities	65,481	66,043
Deferred income tax assets, net	8,682
Assets held for sale	87,750	93,343
Total Assets	4,781,759	4,731,818
Liabilities:
Accounts payable, accrued expenses and other liabilities, net	145,568	146,144
Settlement payable (Note 14)	398,887	418,840
Intangible liabilities, net	185,807	187,886
Accrued interest payable	68,845	95,338
Deferred revenue	1,021,627	995,123
Derivative liability, net	19,908	22,897
Dividends payable	36,894	36,725
Deferred income tax liabilities, net		10,540
Finance lease obligations	14,856	15,468
Contingent consideration		2,957
Notes and other debt, net	4,988,890	4,816,524
Liabilities held for sale	54,167	55,752
Total liabilities	6,935,449	6,804,194
Commitments and contingencies (Note 14)
Shareholders' Deficit:
Preferred stock, $0.0001 par value, 50,000 shares authorized, no shares issued and outstanding
Common stock, $0.0001 par value, 500,000 shares authorized, issued and outstanding: 231,694 shares at March 31, 2021 and 231,262 at December 31, 2020	23	23
Additional paid-in capital	1,150,550	1,209,141
Accumulated other comprehensive loss	(17,580)	(20,367)
Distributions in excess of accumulated earnings	(3,355,423)	(3,330,455)
Total Uniti shareholders' deficit	(2,222,430)	(2,141,658)
Noncontrolling interests:
Operating partnership units	68,615	69,157
Cumulative non-voting convertible preferred stock, $0.01 par value, 3 shares authorized, 1 issued and outstanding	125	125
Total shareholders' deficit	(2,153,690)	(2,072,376)
Total Liabilities and Shareholders' Deficit	$ 4,781,759	$ 4,731,818

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2021	Dec. 31, 2020
Statement Of Financial Position [Abstract]
Preferred stock, par value	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	50,000,000	50,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	231,694,000	231,262,000
Common stock, shares outstanding	231,694,000	231,262,000
Cumulative non-voting convertible preferred stock par value	$ 0.01	$ 0.01
Cumulative non-voting convertible preferred shares authorized	3,000	3,000
Cumulative non-voting convertible preferred shares issued	1,000	1,000
Cumulative non-voting convertible preferred shares outstanding	1,000	1,000

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Loss) (unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues:
Total revenues	$ 272,586	$ 266,162
Costs and Expenses:
Interest expense	140,581	178,393
Depreciation and amortization	70,964	86,121
General and administrative expense	25,823	27,133
Operating expense (exclusive of depreciation and amortization)	38,084	40,310
Transaction related and other costs	4,137	15,972
Other expense, net	454	3,075
Total costs and expenses	280,043	351,004
Loss before income taxes and equity in earnings from unconsolidated entities	(7,457)	(84,842)
Income tax benefit	2,557	4,576
Equity in earnings from unconsolidated entities	398
Net loss	(4,502)	(80,266)
Net loss attributable to noncontrolling interests	(64)	(1,413)
Net loss attributable to shareholders	(4,438)	(78,853)
Participating securities' share in earnings	(248)	(200)
Dividends declared on convertible preferred stock	(3)	(3)
Net loss attributable to common shareholders	$ (4,689)	$ (79,056)
Loss per common share:
Basic	$ (0.02)	$ (0.41)
Diluted	$ (0.02)	$ (0.41)
Weighted-average number of common shares outstanding:
Basic	231,469	192,236
Diluted	231,469	192,236
Leasing
Revenues:
Total revenues	$ 194,936	$ 184,352
Costs and Expenses:
Depreciation and amortization	42,226	54,622
Fiber Infrastructure
Revenues:
Total revenues	77,650	77,407
Costs and Expenses:
Depreciation and amortization	$ 28,670	30,061
Tower
Revenues:
Total revenues		3,720
Costs and Expenses:
Depreciation and amortization		769
Consumer CLEC
Revenues:
Total revenues		683
Costs and Expenses:
Depreciation and amortization		$ 594

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Loss (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (4,502)	$ (80,266)
Other comprehensive income (loss):
Unrealized loss on derivative contracts		(7,036)
Interest rate swap termination	2,829	1,666
Other comprehensive income (loss):	2,829	(5,370)
Comprehensive loss	(1,673)	(85,636)
Comprehensive loss attributable to noncontrolling interest	(22)	(1,508)
Comprehensive loss attributable to common shareholders	$ (1,651)	$ (84,128)

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Shareholders' Deficit (unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect Adjustment for Adoption of New Accounting Standard	Common Stock	Additional Paid-in Capital	Additional Paid-in CapitalCumulative Effect Adjustment for Adoption of New Accounting Standard	Accumulated Other Comprehensive (Loss) Income	Distributions in Excess of Accumulated Earnings	Distributions in Excess of Accumulated EarningsCumulative Effect Adjustment for Adoption of New Accounting Standard	Noncontrolling Interest - OP Units	Noncontrolling Interest - Non-voting Preferred Shares
Beginning balance, value at Dec. 31, 2019	$ (1,483,164)		$ 19	$ 951,295		$ (23,442)	$ (2,494,740)		$ 83,704
Beginning balance, shares at Dec. 31, 2019			192,141,634
Net loss	(80,266)						(78,853)		(1,413)
Other comprehensive (loss) income	(5,370)					(5,275)			(95)
Common stock dividends declared	(29,184)						(29,184)
Distributions to noncontrolling interest	(520)								(520)
Cumulative non-voting convertible preferred stock	125									$ 125
Payments related to tax withholding for share-based compensation	(373)			(373)
Stock-based compensation	2,995			2,995
Stock-based compensation, shares			95,609
Issuance of common stock - employee stock purchase plan	306			306
Issuance of common stock - employee stock purchase plan, in shares			43,849
Ending balance, value at Mar. 31, 2020	(1,595,451)		$ 19	954,223		(28,717)	(2,602,777)		81,676	125
Ending balance, shares at Mar. 31, 2020			192,281,092
Beginning balance, value at Dec. 31, 2020	$ (2,072,376)	$ (45,310)	$ 23	1,209,141	$ (59,908)	(20,367)	(3,330,455)	$ 14,598	69,157	125
Beginning balance, shares at Dec. 31, 2020			231,261,958
Accounting Standards Update Extensible List	unit:AccountingStandardUpdate202006Member
Net loss	$ (4,502)						(4,438)		(64)
Other comprehensive (loss) income	2,829					2,787			42
Common stock dividends declared	(35,128)						(35,128)
Distributions to noncontrolling interest	(520)								(520)
Payments related to tax withholding for share-based compensation	(2,306)			(2,306)
Stock-based compensation	3,335			3,335
Stock-based compensation, shares			396,481
Issuance of common stock - employee stock purchase plan	288			288
Issuance of common stock - employee stock purchase plan, in shares			35,764
Ending balance, value at Mar. 31, 2021	$ (2,153,690)		$ 23	$ 1,150,550		$ (17,580)	$ (3,355,423)		$ 68,615	$ 125
Ending balance, shares at Mar. 31, 2021			231,694,203

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Shareholders' Deficit (unaudited) (Parenthetical) - $ / shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement Of Stockholders Equity [Abstract]
Common stock dividends declared per share	$ 0.15	$ 0.15

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows (unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flow from operating activities
Net loss	$ (4,502)	$ (80,266)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	70,964	86,121
Amortization of deferred financing costs and debt discount	4,959	9,708
Loss on debt extinguishment	37,965	73,952
Interest rate swap termination	2,829	1,666
Deferred income taxes	(3,428)	(4,919)
Equity in (earnings) loss of unconsolidated entities	(398)
Distributions of cumulative earnings from unconsolidated entities	960
Cash paid for interest rate swap settlement	(2,989)	(269)
Straight-line revenues	(6,906)	109
Stock-based compensation	3,335	2,995
Change in fair value of contingent consideration	21	1,495
Loss on asset disposal	134	1,923
Accretion of settlement obligation	4,553
Other	181	(97)
Changes in assets and liabilities, net of acquisitions:
Accounts receivable	11,466	3,246
Other assets	47,630	(8,083)
Accounts payable, accrued expenses and other liabilities	(40,110)	44,691
Net cash provided by operating activities	126,664	132,272
Cash flow from investing activities
Capital expenditures	(84,377)	(75,093)
Net cash used in investing activities	(84,377)	(75,093)
Cash flow from financing activities
Repayment of debt	(1,051,181)	(2,044,728)
Proceeds from issuance of notes	1,110,000	2,250,000
Dividends paid	(34,961)	(42,519)
Payment of settlement obligation	(24,505)
Payments of contingent consideration	(2,979)	(7,086)
Distributions paid to noncontrolling interest	(520)	(762)
Borrowings under revolving credit facility	105,000
Payments under revolving credit facility	(55,000)	(196,700)
Finance lease payments	(710)	(1,026)
Payments for financing costs	(22,931)	(47,775)
Payment of tender premium	(17,550)
Employee stock purchase program	288	306
Payments related to tax withholding for share-based compensation	(2,306)	(373)
Net cash provided by (used in) financing activities	2,645	(90,663)
Net increase (decrease) in cash and cash equivalents	44,932	(33,484)
Cash and cash equivalents at beginning of period	77,534	142,813
Cash and cash equivalents at end of period	122,466	109,329
Non-cash investing and financing activities:
Property and equipment acquired but not yet paid	17,795	14,221
Tenant capital improvements	$ 62,888	$ 36,444

Organization and Description of

Organization and Description of Business	3 Months Ended
	Mar. 31, 2021
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization and Description of Business	Note 1. Organization and Description of Business Uniti Group Inc. (the “Company,” “Uniti,” “we,” “us,” or “our”) was incorporated in the state of Maryland on September 4, 2014. We are an independent internally managed real estate investment trust (“REIT”) engaged in the acquisition and construction of mission critical infrastructure in the communications industry. We are principally focused on acquiring and constructing fiber optic, copper and coaxial broadband networks and data centers. We have historically managed our operations in four As a result, effective January 1, 2021, we manage our operations focused on our two primary lines of business: Uniti Fiber and Uniti Leasing. The Company operates through a customary “up-REIT” structure, pursuant to which we hold substantially all of our assets through a partnership, Uniti Group LP, a Delaware limited partnership (the “Operating Partnership”), that we control as general partner, with the only significant difference between the financial position and results of operations of the Operating Partnership and its subsidiaries compared to the consolidated financial position and consolidated results of operations of Uniti is that the results for the Operating Partnership and its subsidiaries do not include Uniti’s Consumer CLEC segment, which consists of Talk America Services.

Basis of Presentation and Summa

Basis of Presentation and Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	Note 2. Basis of Presentation and Summary of Significant Accounting Policies The accompanying Condensed Consolidated Financial Statements include all accounts of the Company and its wholly-owned and/or controlled subsidiaries, including the Operating Partnership. Under the Accounting Standards Codification 810, Consolidation . ASC 810 provides guidance on the identification of entities for which control is achieved through means other than voting rights (“variable interest entities” or “VIEs”) and the determination of which business enterprise, if any, should consolidate the VIEs. Generally, the consideration of whether an entity is a VIE applies when either: (1) the equity investors (if any) lack (i) the ability to make decisions about the entity’s activities through voting or similar rights, (ii) the obligation to absorb the expected losses of the entity, or (iii) the right to receive the expected residual returns of the entity; (2) the equity investment at risk is insufficient to finance that entity’s activities without additional subordinated financial support; or (3) the equity investors have voting rights that are not proportionate to their economic interests and substantially all of the activities of the entity involve or are conducted on behalf of an investor with a disproportionately small voting interest. The Company consolidates VIEs in which it is considered to be the primary beneficiary. The primary beneficiary is defined as the entity having both of the following characteristics: (1) the power to direct the activities that, when taken together, most significantly impact the VIE’s performance; and (2) the obligation to absorb losses and right to receive the returns from the VIE that would be significant to the VIE. The accompanying Condensed Consolidated Financial Statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information set forth in the Accounting Standards Codification (“ASC”), as published by the Financial Accounting Standards Board (“FASB”), and with the applicable rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair statement of results for the interim period have been included. Operating results from any interim period are not necessarily indicative of the results that may be expected for the full fiscal year. The accompanying Condensed Consolidated Financial Statements and related notes should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K filed with the U.S. Securities and Exchange Commission (“SEC”) on March 5, 2021, as amended by Amendment No. 1 thereto filed on Form 10-K/A with the SEC on March 30, 2021 (the “Annual Report”) Concentration of Credit Risks e were party to a long-term exclusive triple-net lease (the “Master Lease”) with Windstream Holdings, Inc. (together with Windstream Holdings II, LLC, its successor in interest, and its subsidiaries, “Windstream”) pursuant to which a substantial portion of our real property was leased to Windstream and from which a substantial portion of our leasing revenues were derived. On September 18, 2020, Uniti and Windstream bifurcated the Master Lease and entered into two structurally similar master leases (collectively, the “Windstream Leases”), which amended and restated the Master Lease in its entirety. Windstream Windstream Windstream Prior to its emergence from bankruptcy on September 21, 2020, Windstream was a publicly traded company subject to the periodic filing requirements of the Securities Exchange Act of 1934, as amended (the Exchange Act”). Windstream’s historic filings through their quarter ended June 30, 2020 can be found at www.sec.gov. Additionally, the Windstream audited financial statements as of December 31, 2020 and for the period from September 22, 2020 to December 31, 2020 and as of December 31, 2019 and for the period from January 1, 2020 to September 21, 2020 and for each of the two years in the period ended December 31, 2019 are included as an exhibit to our Annual Report. We monitor the credit quality of Windstream through numerous methods, including by (i) reviewing credit ratings of Windstream by nationally recognized credit agencies, (ii) reviewing the financial statements of Windstream that are required to be delivered to us pursuant to the Windstream Leases, (iii) monitoring news reports regarding Windstream and its business, (iv) conducting research to ascertain industry trends potentially affecting Windstream, (v) monitoring Windstream’s compliance with the terms of the Windstream Leases and (vi) monitoring the timeliness of its payments under the Windstream Leases. As of the date of this Quarterly Report on Form 10-Q, Windstream is current on all lease payments. We note that in August 2020, Moody’s Investor Service assigned a B3 corporate family rating with a stable outlook to Windstream in connection with its post-emergence exit financing. At the same time, S&P Global Ratings assigned Windstream a B- issuer rating with a stable outlook. In order to assist us in our continuing assessment of Windstream’s creditworthiness, we periodically receive certain confidential financial information and metrics from Windstream. Recently Adopted Accounting Pronouncements In August 2020, the FASB issued ASU 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470- 20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity In addition, entities must presume share settlement for purposes of calculating diluted EPS when an instrument may be settled in cash or shares. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021, and interim periods within those fiscal years, with early adoption permitted. The Company elected to early adopt the guidance ASU 2020-06 as of January 1, 2021 using the modified retrospective transition method. As a result of early adopting ASU 2020-06, the Company made certain adjustments to its accounting for the outstanding exchangeable senior unsecured notes. The adoption of ASU 2020-06 resulted in the re-combination of the liability and equity components of these notes into a single liability instrument. The carrying value as of December 31, 2020, totaled approximately $275.4 million and as a result of the adoption increased by $61.1 million to $336.5 million as of January 1, 2021. Because of this adoption, the effective interest rate on the exchangeable senior unsecured notes went from 11.1% to 4.8%. Additional paid-in-capital was reduced by $59.9 million and deferred tax liabilities were reduced by $15.8 million. Approximately $14.6 million of cumulative effect of adoption was recognized to the opening balance of retained earnings as of January 1, 2021.

Revenues

Revenues	3 Months Ended
	Mar. 31, 2021
Revenue From Contract With Customer [Abstract]
Revenues	Note 3. Revenues The following is a description of principal activities, separated by reportable segments (see Note 13), from which the Company generates its revenues. Leasing Leasing revenue represents the results from our leasing program, Uniti Leasing, which is engaged in the acquisition of mission-critical communications assets and leasing them to anchor customers on either an exclusive or shared-tenant basis. See Note 4. Fiber Infrastructure The Fiber Infrastructure segment represents the operations of our fiber business, Uniti Fiber, which provides (i) consumer, enterprise, wholesale and backhaul lit fiber, (ii) E-rate, (iii) small cell, (iv) construction services, (v) dark fiber and (vi) other revenue generating activities. i. Consumer, enterprise, wholesale, and backhaul lit fiber fall under the guidance of Topic 606. Revenue is recognized over the life of the contracts in a pattern that reflects the satisfaction of Uniti’s stand-ready obligation to provide lit fiber services. The transaction price is equal to the monthly-recurring charge multiplied by the contract term, plus any non-recurring or variable charges. For each contract, the customer is invoiced monthly. ii. E-rate contracts involve providing lit fiber services to schools and libraries, and is governed by Topic 606. Revenue is recognized over the life of the contract in a pattern that reflects the satisfaction of Uniti’s stand-ready obligation to provide lit fiber services. The transaction price is equal to the monthly-recurring charge multiplied by the contract term, plus any non-recurring or variable charges. For each contract, the customer is invoiced monthly. iii. Small cell contracts provide improved network connection to areas that may not require or accommodate a tower. Small cell arrangements typically contain five streams of revenue: site development, radio frequency (“RF”) design, dark fiber lease, construction services, and maintenance services. Site development, RF design and construction are each separate services and are considered distinct performance obligations under Topic 606. Dark fiber and associated maintenance services constitute a lease, and as such, they are outside the scope of Topic 606 and are governed by other applicable guidance. iv. Construction revenue is generated from contracts to provide various construction services such as equipment installation or the laying of fiber. Construction revenue is recognized over time as construction activities occur as we are either enhancing a customer’s owned asset or constructing an asset with no alternative use to us and we would be entitled to our costs plus a reasonable profit margin if the contract was terminated early by the customer. We are utilizing our costs incurred as the measure of progress of satisfying our performance obligation. v. Dark fiber arrangements represent operating leases under ASC 842 and are outside the scope of Topic 606. When (a) a customer makes an advance payment or (b) a customer is contractually obligated to pay any amounts in advance, which is not deemed a separate performance obligation, deferred leasing revenue is recorded. This leasing revenue is recognized ratably over the expected term of the contract, unless the pattern of service suggests otherwise. vi. The Company generates revenues from other services, such as consultation services and equipment sales. Revenue from the sale of customer premise equipment and modems that are not provided as an essential part of the telecommunications services, including broadband, long distance, and enhanced services is recognized when products are delivered to and accepted by the customer. Revenue from customer premise equipment and modems provided as an essential part of the telecommunications services, including broadband, long distance, and enhanced services are recognized over time in a pattern that reflects the satisfaction of the service performance obligation. Towers The Towers segment represents the operations of our former towers business, Uniti Towers, through which we acquired and constructed tower and tower-related real estate, which we then leased to our customers in the United States and Latin America. Revenue from our towers business qualifies as a lease under ASC 842 and is outside the scope of Topic 606. Starting in 2019, the Company completed a series of transactions to largely divest of its towers business: on April 2, 2019, May 23, 2019 and June 1, 2020, the Company completed the sales of its Latin American business, substantially all of its U.S. ground lease business, and its U.S. tower business, respectively Consumer CLEC The Consumer CLEC segment represents the operations of Talk America Services (“Talk America”) through which we operated the Consumer CLEC Business, which provided local telephone, high-speed internet and long-distance services to customers in the eastern and central United States. Customers are billed monthly for services rendered based on actual usage or contracted amounts. The transaction price is equal to the monthly-recurring charge multiplied by the initial contract term (typically 12 months), plus any non-recurring or variable charges. As of the end of the second quarter of 2020, we substantially completed a wind down of our Consumer CLEC business. Disaggregation of Revenue The following table presents our revenues disaggregated by revenue stream. Three Months Ended March 31, (Thousands) 2021 2020 Revenue disaggregated by revenue stream Revenue from contracts with customers Fiber Infrastructure Lit backhaul $ 25,044 $ 28,192 Enterprise and wholesale 21,000 19,258 E-Rate and government 19,364 20,937 Other 816 548 Fiber Infrastructure $ 66,224 $ 68,935 Consumer CLEC - 683 Leasing 1,167 - Total revenue from contracts with customers 67,391 69,618 Revenue accounted for under other applicable guidance 205,195 196,544 Total revenue $ 272,586 $ 266,162 At March 31, 2021, and December 31, 2020, lease receivables were $19.1 million and $17.5 million, respectively, and receivables from contracts with customers were $32.2 million and $45.1 million, respectively. Contract Assets (Unbilled Revenue) and Liabilities (Deferred Revenue) Contract assets primarily consist of unbilled construction revenue where we are utilizing our costs incurred as the measure of progress of satisfying our performance obligation, contract assets are reported within accounts receivable, net on our Consolidated Balance Sheet. When the contract price is invoiced, the related unbilled receivable is reclassified to trade accounts receivable, where the balance will be settled upon the collection of the invoiced amount. Contract liabilities are generally comprised of upfront fees charged to the customer for the cost of establishing the necessary components of the Company’s network prior to the commencement of use by the customer. Fees charged to customers for the recurring use of the Company’s network are recognized during the related periods of service. Upfront fees that are billed in advance of providing services are deferred until such time the customer accepts the Company’s network and then are recognized as service revenues ratably over a period in which substantive services required under the revenue arrangement are expected to be performed, which is the initial term of the arrangement . During the three months ended March 31 , 202 1 , we recognized revenues of $ 5.1 million, which was included in the December 31, 20 20 contract liabilities balance. The following table provides information about contract assets and contract liabilities accounted for under Topic 606. (Thousands) Contract Assets Contract Liabilities Balance at December 31, 2020 $ 3,462 $ 18,601 Balance at March 31, 2021 $ 2,460 $ 15,949 Transaction Price Allocated to Remaining Performance Obligations Performance obligations within contracts to stand ready to provide services are typically satisfied over time or as those services are provided. Contract liabilities primarily relate to deferred revenue from upfront customer payments. The deferred revenue is recognized, and the liability reduced, over the contract term as the Company completes the performance obligation. As of March 31, 2021, our future revenues (i.e., transaction price related to remaining performance obligations) under contract accounted for under Topic 606 totaled $461.7 1.8 6.6 Practical Expedients and Exemptions We do not disclose the value of unsatisfied performance obligations for contracts that have an original expected duration of one year or less. We exclude from the transaction price any amounts collected from customers for sales taxes and therefore, such amounts are not included in revenue.

Leases

Leases	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Leases	Note 4. Leases Lessor Accounting We lease communications towers, ground, colocation, and dark fiber to tenants under operating leases. Our leases have initial lease terms ranging from less than one year to 35 years, most of which include options to extend or renew the leases for less than one year to 20 years (based on the satisfaction of certain conditions as defined in the lease agreements), and some of which may include options to terminate the leases within one to six months. Certain lease agreements contain provisions for future rent increases. Payments due under the lease contracts include fixed payments plus, for some of our leases, variable payments. The components of lease income for the three months ended March 31, 2021 Three Months Ended March 31, (Thousands) 2021 2020 Lease income - operating leases $ 205,195 $ 196,544 Lease payments to be received under non-cancellable operating leases where we are the lessor for the remainder of the lease terms as of March 31, 2021 are as follows: (Thousands) March 31, 2021 (1) 2021 $ 551,099 2022 748,612 2023 750,261 2024 750,839 2025 751,855 Thereafter 3,651,772 Total lease receivables $ 7,204,438 (1) The underlying assets under operating leases where we are the lessor are summarized as follows: (Thousands) March 31, 2021 December 31, 2020 Land $ 26,596 $ 26,596 Building and improvements 335,534 335,495 Poles 270,102 266,758 Fiber 3,042,228 2,994,465 Equipment 428 421 Copper 3,881,801 3,850,988 Conduit 89,776 89,773 Tower assets 1,397 1,397 Finance lease assets 32,660 32,660 Other assets 10,671 10,425 7,691,193 7,608,978 Less: accumulated depreciation (5,268,648 ) (5,222,731 ) Underlying assets under operating leases, net (1) $ 2,422,545 $ 2,386,247 (1) Depreciation expense for the underlying assets under operating leases where we are the lessor for the three months ended March 31, 2021 and 2020, respectively, is summarized as follows: Three Months Ended March 31, (Thousands) 2021 2020 Depreciation expense for underlying assets under operating leases $ 45,913 $ 56,134 Lessee Accounting We have commitments under operating leases for communications towers, ground, colocation, dark fiber lease arrangements, and buildings. We also have finance leases for dark fiber lease arrangements and other communications equipment. Our leases have initial lease terms ranging from less than one year to 30 years, most of which include options to extend or renew the leases for less than one year to 20 years, and some of which may include options to terminate the leases within one to six months. Certain lease agreements contain provisions for future rent increases. Payments due under the lease contracts include fixed payments plus, for some of our leases, variable payments. As of March 31, 2021 million The components of lease cost for the three months ended March 31, 2021 and 2020 Three Months Ended March 31, (Thousands) 2021 2020 Finance lease cost Amortization of ROU assets $ 1,362 $ 1,026 Interest on lease liabilities 910 989 Total finance lease cost 2,272 2,015 Operating lease cost 5,113 7,538 Short-term lease cost 692 483 Variable lease cost 187 18 Less sublease income (2,982 ) (3,685 ) Total lease cost $ 5,282 $ 6,369 Amounts reported in the Condensed Consolidated Balance Sheets for leases where we are the lessee were as follows: (Thousands) Location on Condensed Consolidated Balance Sheets March 31, 2021 December 31, 2020 Operating leases ROU assets, net (1) Other assets, net $ 94,210 $ 97,850 Lease liabilities (2) Accounts payable, accrued expenses and other liabilities, net 68,379 71,483 Finance leases ROU asset, gross (3) Property, plant and equipment, net $ 125,313 $ 128,098 Lease liabilities (4) Finance lease obligations 47,646 48,724 Weighted-average remaining lease term Operating leases 12.5 years 12.2 years Finance leases 13.2 years 13.3 years Weighted-average discount rate Operating leases 9.8 % 9.9 % Finance leases 8.0 % 8.0 % (1) (2) (3) (4) Other information related to leases as of March 31, 2021 and 2020 , respectively, (Thousands) 2021 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from finance leases $ 910 $ 989 Operating cash flows from operating leases 5,533 7,452 Financing cash flows from finance leases 710 1,026 Non-cash items: New operating leases and remeasurements, net $ 792 $ 2,985 New finance leases - - Future lease payments under non-cancellable leases as of March 31, 2021 (Thousands) Operating Leases (1) Finance Leases (2) 2021 $ 14,952 $ 5,045 2022 17,567 6,622 2023 15,003 6,601 2024 10,810 6,236 2025 6,828 5,184 Thereafter 35,903 45,114 Total undiscounted lease payments $ 101,063 $ 74,802 Less: imputed interest (32,684 ) (27,156 ) Total lease liabilities $ 68,379 $ 47,646 (1) (2) Future sublease rentals as of March 31, 2021 are as follows: (Thousands) Sublease Rentals 2021 $ 6,219 2022 8,746 2023 8,799 2024 8,851 2025 8,904 Thereafter 124,715 Total $ 166,234

Assets and Liabilities Held for

Assets and Liabilities Held for Sale	3 Months Ended
	Mar. 31, 2021
Discontinued Operations And Disposal Groups [Abstract]
Assets and Liabilities Held for Sale	Note 5. Assets and Liabilities Held for Sale In October 2020, the Company entered into an OpCo-PropCo transaction with Everstream Solutions LLC (“Everstream”). As part of the transaction, Uniti will enter into two 20-year IRU lease agreements with Everstream on Uniti owned fiber. Concurrently, Uniti has agreed to sell its Uniti Fiber Northeast operations and certain dark fiber IRU contracts acquired as part of the Windstream settlement to Everstream. Total cash consideration, including upfront IRU payments, is approximately $ million. In addition to the upfront proceeds, Uniti will receive fees of approximately $ million annually from Everstream over the initial %. The transaction is subject to regulatory approval and other customary closing conditions and is expected to close in the second quarter of 2021. The following table presents the assets and liabilities associated with the Opco-Propco transaction with Everstream classified as held for sale as of March 31, 2021 and December 31, 2020: (Thousands) March 31, 2021 December 31, 2020 Assets: Property, pant and equipment, net $ 44,208 $ 44,150 Goodwill 17,794 17,794 Intangible assets, net 7,264 10,720 Right of use assets, net 18,484 20,679 Total assets $ 87,750 $ 93,343 Liabilities: Lease liabilities $ 16,885 $ 17,647 Intangible liabilities, net 4,492 4,849 Finance lease obligations 32,790 33,256 Total Liabilities $ 54,167 $ 55,752 The assets and liabilities associated with the Everstream transaction are included in the results of the Fiber Infrastructure segment. The sale does not represent a strategic shift that will have a major effect on operations and financial results and, therefore, did not qualify for presentation as a discontinued operation.

Investments in Unconsolidated E

Investments in Unconsolidated Entities	3 Months Ended
	Mar. 31, 2021
Equity Method Investments And Joint Ventures [Abstract]
Investments in Unconsolidated Entities	Note 6. Investments in Unconsolidated Entities As of March 31, 2021, the Company had an aggregate investment of $65.5 million in its equity method unconsolidated entities, which included a 42% interest in BB Fiber Holdings LLC (“Fiber Holdings”) Harmoni Towers LP (“Harmoni”) Fiber Holdings Fiber Holdings was primarily established to develop fiber networks as real estate property for long-term investment. On July 1, 2020, the Company completed the sale of an ownership stake in the entity that controls the Company’s Midwest fiber network assets (the “Propco”). Fiber Holdings has a 47.5% ownership in the Propco that is under a long-term, triple net lease with our joint venture partner. Our ownership interest in Fiber Holdings represents approximately a 20% economic interest in the Propco. The Company’s current investment and maximum exposure to loss as a result of its involvement with was approximately $40.8 million as of March 31, 2021. The Company has not provided financial support to Harmoni Harmoni was primarily established to develop wireless communication towers as real estate property for long-term investment. We concluded that Harmoni is a VIE; however, the Company determined that it was not the primary beneficiary of Harmoni . The Company’s current investment and maximum exposure to loss as a result of its involvement with Harmoni was approximately $24.6 million as of March 31, 2021. The Company has not provided financial support to . We provide transition services to Harmoni in exchange for fees and reimbursements. Total transition service fees earned in connection with Harmoni for the three months ended March 31, 2021 were $0.1 million, which is included in operating expense on a net basis in our Consolidated Statements of Income (Loss).

Fair Value of Financial Instrum

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Note 7. Fair Value of Financial Instruments FASB ASC 820, Fair Value Measurements Level 1 – Quoted prices (unadjusted) in active markets for identical assets or liabilities that the reporting entity can access at the assessment date; Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly; and Level 3 – Unobservable inputs for the asset or liability. Our financial instruments consist of cash and cash equivalents, accounts and other receivables, a derivative asset and liability, our outstanding notes and other debt, contingent consideration and accounts, interest and dividends payable. The following table summarizes the fair value of our financial instruments at March 31, 2021 and December 31, 2020: (Thousands) Total Quoted Prices in Active Markets (Level 1) Prices with Other Observable Inputs (Level 2) Prices with Unobservable Inputs (Level 3) At March 31, 2021 Liabilities Senior secured notes - 6.00% , due April 15, 2023 $ 558,938 $ - $ 558,938 $ - Senior secured notes - 7.875%, due February 15, 2025 2,421,563 - 2,421,563 - Senior unsecured notes - 8.25%, due October 15, 2023 58,966 - 58,966 - Senior unsecured notes - 7.125%, due December 15, 2024 617,250 - 617,250 - Senior unsecured notes - 6.50% , due February 15, 2029 1,094,738 - 1,094,738 - Exchangeable senior notes - 4.00%, due June 15, 2024 409,946 - 409,946 - Senior secured revolving credit facility, variable rate, due December 10, 2024 160,000 - 160,000 - Settlement payable 398,887 - 398,887 - Derivative liability, net 19,908 - 19,908 - Total $ 5,740,196 $ - $ 5,740,196 $ - (Thousands) Total Quoted Prices in Active Markets (Level 1) Prices with Other Observable Inputs (Level 2) Prices with Unobservable Inputs (Level 3) At December 31, 2020 Liabilities Senior secured notes - 6.00%, due April 15, 2023 $ 561,000 $ - $ 561,000 $ - Senior secured notes - 7.875%, due February 15, 2025 2,410,313 - 2,410,313 - Senior unsecured notes - 8.25%, due October 15, 2023 1,112,775 - 1,112,775 - Senior unsecured notes - 7.125%, due December 15, 2024 601,500 - 601,500 - Exchangeable senior unsecured notes - 4.00%, due June 15, 2024 426,058 - 426,058 - Senior secured revolving credit facility, variable rate, due April 24, 2022 110,000 - 110,000 - Settlement payable 418,840 - 418,840 - Derivative liability, net 22,897 - 22,897 - Contingent consideration 2,957 - - 2,957 Total $ 5,666,340 $ - $ 5,663,383 $ 2,957 The carrying value of cash and cash equivalents, accounts and other receivables, and accounts, interest and dividends payable approximate fair values due to the short-term nature of these financial instruments. The total principal balance of our outstanding notes and other debt was $5.07 billion at March 31, 2021, with a fair value of $5.32 billion. The estimated fair value of our outstanding notes and other debt was based on available external pricing data and current market rates for similar debt instruments, among other factors, which are classified as Level 2 inputs within the fair value hierarchy. Derivative assets and liabilities are carried at fair value. See Note 9 Given the limited trade activity of the Exchangeable Notes, the fair value of the Exchangeable Notes ( see Note 11 ) is determined based on inputs that are observable in the market and have been classified as Level 2 in the fair value hierarchy. Specifically, we estimated the fair value of the Exchangeable Notes based on readily available external pricing information, quoted market prices, and current market rates for similar convertible debt instruments. Uniti is required to make a $490.1 million cash payment to Windstream in equal installments over 20 consecutive quarters beginning the first month after Windstream’s emergence (the “Settlement Payable”) ( see Note 14 ). The Settlement Payable was initially recorded at fair value, using the present value of expected future cash flows, and is being amortized using the effective interest method and is classified as Level 2 inputs within the fair value hierarchy. The fair value of the Settlement Payable is $398.9 million and is reported as settlement payable on our Condensed Consolidated Balance Sheet at March 31, 2021. We acquired Tower Cloud, Inc. (“Tower Cloud”) on August 31, 2016. As part of the Tower Cloud acquisition, we were obligated to pay contingent consideration upon achievement of certain defined operational and financial milestones from the date of acquisition through December 31, 2021. During the three months ended March 31, 2021, the Company paid $3.0 million for the achievement of the final remaining milestone in accordance with the Tower Cloud merger agreement. During the three months ended March 31, 20 20 Changes in the fair value of contingent consideration arrangements are recorded in our Condensed Consolidated Statements of Income (Loss) in the period in which the change occurs. For the three months ended March 31, 2021 and 2020, there was less than a 0.1 The following is a roll forward of our liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3): (Thousands) December 31, 2020 Transfers into Level 3 (Gain)/Loss included in earnings Settlements March 31, 2021 Contingent consideration $ 2,957 $ - $ 22 $ (2,979 ) $ -

Property, Plant and Equipment

Property, Plant and Equipment	3 Months Ended
	Mar. 31, 2021
Property Plant And Equipment [Abstract]
Property, Plant and Equipment	Note 8. Property, Plant and Equipment The carrying value of property, plant and equipment is as follows: (Thousands) Depreciable Lives March 31, 2021 December 31, 2020 Land Indefinite $ 27,936 $ 27,945 Building and improvements 3 - 40 years 351,351 351,305 Poles 30 years 270,102 266,758 Fiber 30 years 3,796,553 3,737,372 Equipment 5 - 7 years 306,931 298,912 Copper 20 years 3,881,801 3,850,987 Conduit 30 years 89,776 89,773 Tower assets 20 years 8,571 8,571 Finance lease assets (1 ) 71,318 74,103 Other assets 15 - 20 years 10,675 10,553 Corporate assets 3 - 7 years 13,628 13,475 Construction in progress (1 ) 68,719 47,086 8,897,361 8,776,840 Less accumulated depreciation (5,568,122 ) (5,503,487 ) Net property, plant and equipment $ 3,329,239 $ 3,273,353 (1) See our Annual Report for property, plant and equipment accounting policies. Depreciation expense for the three months ended March 31, 2021 and 2020

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	3 Months Ended
	Mar. 31, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Derivative Instruments and Hedging Activities	Note 9. Derivative Instruments and Hedging Activities The Company uses derivative instruments to mitigate the effects of interest rate volatility inherent in our variable rate debt, which could unfavorably impact our future earnings and forecasted cash flows. The Company does not use derivative instruments for speculative or trading purposes. On April 27, 2015, we entered into fixed for floating interest rate swap agreements to mitigate the interest rate risk inherent in our variable rate senior secured term loan B facility. These interest rate swaps were designated as cash flow hedges and have a notional value of $2.02 As result of the repayment of the Company’s senior secured term loan B facility in February 2020, the Company entered into receive-fixed interest rate swaps to offset its existing pay-fixed interest rate swaps. As a result, the Company discontinued hedge accounting as the hedge accounting requirements were no longer met. Amounts in accumulated other comprehensive (loss) income as of the date of de-designation, will be reclassified to interest expense as the hedged transactions impact earnings. Prospectively, changes in fair value of all interest rate swaps will be recorded directly to earnings. The Company has elected to offset derivative positions that are subject to master netting arrangements with the same counterparty in our Condensed Consolidated Balance Sheets. The following tables present the gross amounts of our derivative instruments subject to master netting arrangements with the same counterparty as of March 31, 2021 and December 31, 2020: Offsetting of Derivative Assets and Liabilities (Thousands) Gross Amounts of Recognized Assets or Liabilities Gross Amounts Offset in the Condensed Consolidated Balance Sheets Net Amounts of Assets or Liabilities presented in the Condensed Consolidated Balance Sheets At March 31, 2021 Assets Interest rate swaps $ 23,602 $ (23,602 ) $ - Total $ 23,602 $ (23,602 ) $ - Liabilities Interest rate swaps $ 43,510 $ (23,602 ) $ 19,908 Total $ 43,510 $ (23,602 ) $ 19,908 Offsetting of Derivative Assets and Liabilities (Thousands) Gross Amounts of Recognized Assets or Liabilities Gross Amounts Offset in the Condensed Consolidated Balance Sheets Net Amounts of Assets or Liabilities presented in the Condensed Consolidated Balance Sheets At December 31, 2020 Assets Interest rate swaps $ 27,869 $ (27,869 ) $ - Total $ 27,869 $ (27,869 ) $ - Liabilities Interest rate swaps $ 50,766 $ (27,869 ) $ 22,897 Total $ 50,766 $ (27,869 ) $ 22,897 The following table summarizes the fair value and the presentation in our Condensed Consolidated Balance Sheets: (Thousands) Location on Condensed Consolidated Balance Sheets March 31, 2021 December 31, 2020 Interest rate swaps Derivative liability, net $ 19,908 $ 22,897 As of March 31, 2021, all of the interest rate swaps were valued in net unrealized loss positions and recognized as liability balances within the derivative liability, net in our Condensed Consolidated Balance Sheets The amount reclassified out of other comprehensive income into interest expense on our Condensed Consolidated Statements of Loss for the three months ended March 31, 2021 and 2020 was $2.8 million and $1.7 million, respectively. During the next twelve months, beginning April 1, 2021, we estimate that $11.3 million will be reclassified as an increase to interest expense. Exchangeable Notes Hedge Transactions On June 25, 2019, concurrently with the pricing of the Exchangeable Notes ( see Note 11 ), and on June 27, 2019, concurrently with the exercise by the initial purchasers involved in the offering of the Exchangeable Notes (the “Initial Purchasers”) exchangeable note hedge transactions with respect to the Company’s common stock ( of the Initial Purchasers or their respective affiliates (collectively, the “Counterparties”) anti-dilution adjustments substantially similar to those applicable to the Exchangeable Notes, the same number of shares of the Company’s common stock that initially underlie the Exchangeable Notes in the aggregate and are exercisable upon exchange of the Exchangeable Notes. The Note Hedge Transactions have an initial strike price that corresponds to the initial exchange price of the Exchangeable Notes, subject to anti-dilution adjustments substantially similar to those applicable to the Exchangeable Notes. The Note Hedge Transactions will expire upon the maturity of the Exchangeable Notes, if not earlier exercised. The Note Hedge Transactions are intended to reduce potential dilution to the Company’s common stock upon any exchange of the Exchangeable Notes and/or offset any cash payments Uniti Fiber is required to make in excess of the principal amount of exchanged Exchangeable Notes, as the case may be, in the event that the market value per share of the Company’s common stock, as measured under the Note Hedge Transactions, at the time of exercise is greater than the strike price of the Note Hedge Transactions. The Note Hedge Transactions are separate transactions, entered into by Uniti Fiber with the Counterparties, and are not part of the terms of the Exchangeable Notes. Holders of the Exchangeable Notes will not have any rights with respect to the Note Hedge Transactions. The Note Hedge Transactions meet certain accounting criteria under GAAP, are recorded in additional paid-in capital on our Condensed Consolidated Balance Sheets and are not accounted for as derivatives that are remeasured each reporting period. Warrant Transactions On June 25, 2019, concurrently with the pricing of the Exchangeable Notes, and on June 27, 2019 concurrently with the exercise by the Initial Purchasers of their option to purchase additional Exchangeable Notes, the Company entered into warrant transactions to sell to the Counterparties Warrants to acquire, subject to anti-dilution adjustments, up to approximately 27.8 million shares of the Company’s common stock in the aggregate at an exercise price of approximately $16.42 per share. The maximum number of shares of the Company’s common stock that could be issued pursuant to the Warrants is approximately 55.5 million. The Company offered and sold the Warrants in reliance on the exemption from registration provided by Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”). If the market value per share of the Company’s common stock, as measured under the Warrants, at the time of exercise exceeds the strike price of the Warrants, the Warrants will have a dilutive effect on the Company’s common stock unless, subject to the terms of the Warrants, the Company elects to cash settle the Warrants. The Warrants will expire over a period beginning in September 2024. The Warrants are separate transactions, entered into by the Company with the Counterparties, and are not part of the terms of the Exchangeable Notes. Holders of the Exchangeable Notes will not have any rights with respect to the Warrants. The Warrants meet certain accounting criteria under GAAP, are recorded in additional paid-in capital on our Condensed Consolidated Balance Sheets and are not accounted for as derivatives that are remeasured each reporting period.

Goodwill and Intangible Assets

Goodwill and Intangible Assets and Liabilities	3 Months Ended
	Mar. 31, 2021
Goodwill And Intangible Assets And Liabilities Disclosure [Abstract]
Goodwill and Intangible Assets and Liabilities	Note 10. Goodwill and Intangible Assets and Liabilities There were no changes in the carrying amount of goodwill occurring during the three months ended March 31, 2021. (Thousands) Fiber Infrastructure Total Goodwill at December 31, 2020 $ 601,878 $ 601,878 Goodwill at March 31, 2021 601,878 601,878 (Thousands) March 31, 2021 December 31, 2020 Original Cost Accumulated Amortization Original Cost Accumulated Amortization Finite life intangible assets: Customer lists $ 416,104 $ (88,666 ) $ 416,104 $ (82,989 ) Contracts 52,536 (3,283 ) 48,269 (1,068 ) Underlying Rights 10,497 (175 ) 10,497 (87 ) Total intangible assets $ 479,137 $ 474,870 Less: accumulated amortization (92,124 ) (84,145 ) Total intangible assets, net $ 387,013 $ 390,725 Finite life intangible liabilities: Below-market leases $ 191,154 (5,347 ) $ 190,086 (2,200 ) Finite life intangible liabilities: Below-market leases $ 191,154 $ 190,086 Less: accumulated amortization (5,347 ) (2,200 ) Total intangible liabilities, net $ 185,807 $ 187,886 As of March 31, 2021, the remaining weighted average amortization period of the Company’s intangible assets and liabilities was 15.5 months ended March 31, 2021 and 2020 w 4.8 Amortization expense is estimated to be $ 19.1

Notes and Other Debt

Notes and Other Debt	3 Months Ended
	Mar. 31, 2021
Long Term Debt [Abstract]
Notes and Other Debt	Note 11. Notes and Other Debt All debt, including the senior secured credit facility and notes described below, are obligations of the Operating Partnership and/or certain of its subsidiaries as discussed below. The Company is, however, a guarantor of such debt. Notes and other debt are as follows: (Thousands) March 31, 2021 December 31, 2020 Principal amount $ 5,073,819 $ 4,965,000 Less unamortized discount, premium and debt issuance costs (84,929 ) (148,476 ) Notes and other debt less unamortized discount, premium and debt issuance costs $ 4,988,890 $ 4,816,524 Notes and other debt at March 31, 2021 and December 31, 2020 consisted of the following: March 31, 2021 December 31, 2020 (Thousands) Principal Unamortized Discount, Premium and Debt Issuance Costs Principal Unamortized Discount, Premium and Debt Issuance Costs Senior secured notes - 7.875%, due February 15, 2025 (discount is based on imputed interest rate of 8.38%) $ 2,250,000 (37,808 ) $ 2,250,000 $ (39,852 ) Senior unsecured notes - 6.50%, due February 24, 2029 (discount is based on imputed interest rate of 6.83%) 1,110,000 (22,263 ) - - Senior secured notes - 6.00%, due April 15, 2023 (discount is based on imputed interest rate of 6.49%) 550,000 (3,642 ) 550,000 (4,053 ) Senior unsecured notes - 8.25%, due October 15, 2023 (discount is based on imputed interest rate of 9.06%) 58,819 (1,142 ) 1,110,000 (22,024 ) Senior unsecured notes - 7.125% due December 15, 2024 (discount is based on imputed interest rate of 7.38%) 600,000 (5,057 ) 600,000 (5,316 ) Senior unsecured notes - 4.00%, due June 15, 2024 (discount is based on imputed interest rate of 4.77%) 345,000 (7,935 ) 345,000 (69,608 ) Senior secured revolving credit facility, variable rate, due December 10, 2024 160,000 (7,082 ) 110,000 (7,623 ) Total $ 5,073,819 $ (84,929 ) $ 4,965,000 $ (148,476 ) At March 31, 2021, notes and other debt included the following: (i) $160.0 million under the Revolving Credit Facility (as defined below) pursuant to the credit agreement by and among Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC (the “Borrowers”), the guarantors and lenders party thereto and Bank of America, N.A., as administrative agent and collateral agent (the “Credit Agreement”); (ii) $2.25 billion aggregate principal amount of 7.875% senior secured notes due 2025 (the “2025 Secured Notes”); (iii) $550.0 million aggregate principal amount of 6.00% Senior Secured Notes due April 15, 2023 (the “2023 Secured Notes”); (iv) $58.8 million aggregate principal amount of 8.25% Senior Unsecured Notes due October 15, 2023 (the “2023 Notes”); (v) $600.0 million aggregate principal amount of 7.125% Senior Unsecured Notes due December 15, 2024 (the “2024 Notes”); (v) $1.11 billion aggregate principal amount of 6.50% Senior Notes due February 15, 2029 (the “2029 Notes”); and (vi) $345.0 million aggregate principal amount of 4.00% Exchangeable Senior Notes due June 15, 2024 (the “Exchangeable Notes” and, collectively with the 2025 Secured Notes, 2023 Secured Notes, 2023 Notes, 2024 Notes and 2029 Notes, the Notes). U ntil our net leverage ratio is below 5.75 : 1.00, o limit our ability to make cash distributions to our shareholders in amounts exceeding 90% of our good faith estimate, as of the date on which the first quarterly dividend for the relevant year is declared, of our REIT taxable income for such year, determined without regard to the dividends paid deduction and excluding any capital gains. On February 2, 2021, the Borrowers, as co-issuers, to fund the tender offer of substantially all outstanding 2023 Notes, of which $58.8 million remained outstanding as of March 31, 2021. On April 15, 2021, the Borrowers redeemed the remaining outstanding principal amount of the 2023 Notes. During the three months ended March 31, 2021, we recognized a $38.0 million loss on the tendered 2023 Notes within interest expense, net on the Condensed Consolidated States of Income (loss), which included $20.4 million of non-cash interest expense for the write off of the unamortized discount and deferred financing costs and $17.6 million of cash interest expense for the tender premium. The remaining unamortized discount and deferred financing costs of $1.1 million will be written off during April 2021. The 2029 Notes were issued at an issue price of 100% of their principal amount pursuant to an indenture, dated as of February 2, 2021 (the “2029 Indenture”), among the Borrowers, the guarantors named therein and Deutsche Bank Trust Company Americas, as trustee (the “Trustee”). The 2029 Notes mature on February 15, 2029 and bear interest at a rate of 6.50% per year. Interest on the 2029 Notes is payable on February 15 and August 15 of each year, beginning on August 15, 2021. The Borrowers may redeem the 2029 Notes, in whole or in part, at any time prior to February 15, 2024 at a redemption price equal to 100% of the principal amount of the 2029 Notes redeemed plus accrued and unpaid interest on the 2029 Notes, if any, to, but not including the redemption date, plus an applicable “make whole” premium described in the 2029 Indenture. Thereafter, the Borrowers may redeem the 2029 Notes in whole or in part, at the redemption prices set forth in the 2029 Indenture. In addition, at any time on or prior to February 15, 2024, up to 40% of the aggregate principal amount of the 2029 Notes may be redeemed with the net cash proceeds of certain equity offerings, at a redemption price of 106.500% of the principal amount, plus accrued and unpaid interest, if any, to, but excluding, the redemption date; provided that at least 60% of aggregate principal amount of the originally issued 2029 Notes remains outstanding. Further, if certain changes of control of Uniti Group LP occur, holders of the 2029 Notes will have the right to require the Borrowers to offer to repurchase their 2029 Notes at 101% of their principal amount plus accrued and unpaid interest, if any, to, but excluding, the repurchase date. The 2029 Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by the Company and by each of Uniti Group LP’s existing and future domestic restricted subsidiaries (other than the Borrowers) that guarantees indebtedness under the Company’s senior secured credit facilities. The guarantees are subject to release under specified circumstances, including certain circumstances in which such guarantees may be automatically released without the consent of the holders of the 2029 Notes. The 2029 Indenture contains customary high yield covenants limiting the ability of Uniti Group LP and its restricted subsidiaries to: incur or guarantee additional indebtedness; incur or guarantee secured indebtedness; pay dividends or distributions on, or redeem or repurchase, capital stock; make certain investments or other restricted payments; sell assets; enter into transactions with affiliates; merge or consolidate or sell all or substantially all of their assets; and create restrictions on the ability of the Borrowers and their restricted subsidiaries to pay dividends or other amounts to the Borrowers. These covenants are subject to a number of limitations, qualifications and exceptions. The 2029 Indenture also contains customary events of default. On April 20, 2021, the Borrowers issued $570 million aggregate principal amount of 4.750% Senior Secured Notes due 2028 (the “2028 Secured Notes”) and will use the net proceeds from the offering to fund the redemption in full of the 2023 Secured Notes on May 6, 2021. On April 20, 2021, the Borrowers deposited amounts sufficient to fund the redemption of the 2023 Secured Notes with the trustee and satisfied and discharged their respective obligations under the indenture governing the 2023 Secured Notes. See Note 16. Credit Agreement T he Borrowers are party to the Credit Agreement, which after the Seventh Amendment (as defined below) as of March 31, 2021, provided for a $60.5 million non-extended revolving credit facility that matures on April 24, 2022 (the “Non-Extended Revolving Credit Facility”) and a $500 million revolving credit facility extended that will mature on December 10, 2024 (the “Extended Revolving Credit Facility” and together with Non-Extended Revolving Credit facility, the “Revolving Credit Facility”), which provide us with the ability to obtain revolving loans as well as swingline loans and letters of credit from time to time. All obligations under the Credit Agreement are guaranteed by (i) the Company and (ii) certain of the Operating Partnership’s subsidiaries (the “Subsidiary Guarantors”) and are secured by substantially all of the assets of the Borrowers and the Subsidiary Guarantors. The Borrowers are subject to customary covenants under the Credit Agreement, including an obligation to maintain a consolidated secured leverage ratio, as defined in the Credit Agreement, not to exceed 5.00 to 1.00. We are permitted, subject to customary conditions, to incur other indebtedness, so long as, on a pro forma basis after giving effect to any such indebtedness, our consolidated total leverage ratio, as defined in the Credit Agreement, does not exceed 6.50 to 1.00 and, if such debt is secured, our consolidated secured leverage ratio, as defined in the Credit Agreement, does not exceed 4.00 to 1.00. In addition, the Credit Agreement contains customary events of default, including a cross default provision whereby the failure of the Borrowers or certain of their subsidiaries to make payments under other debt obligations, or the occurrence of certain events affecting those other borrowing arrangements, could trigger an obligation to repay any amounts outstanding under the Credit Agreement. In particular, a repayment obligation could be triggered if (i) the Borrowers or certain of their subsidiaries fail to make a payment when due of any principal or interest on any other indebtedness aggregating $75.0 million or more, or (ii) an event occurs that causes, or would permit the holders of any other indebtedness aggregating $75.0 million or more to cause, such indebtedness to become due prior to its stated maturity. As of March 31, 2021, the Borrowers were in compliance with all of the covenants under the Credit Agreement. A termination of either Windstream Lease would result in an “event of default” under the Credit Agreement if a replacement lease is not entered into within ninety (90) calendar days and we do not maintain pro forma compliance with a consolidated secured leverage ratio, as defined in the Credit Agreement, of 5.00 to 1.00. On December 10, 2020, we entered into an amendment (the “Seventh Amendment”) to our Credit Agreement. Pursuant to the Seventh Amendment, commitments from new and existing lenders under the Revolving Credit Facility have increased to $500 million and the maturity date of such commitments has been extended to December 10, 2024. Certain non-extending lender commitments of $60.5 million will mature on April 24, 2022 and will continue to bear interest at rates previously in effect. Prior to the expiration of these commitments, the aggregate size of the Revolving Credit Facility will be $560.5 million from all lenders. Borrowings under (a) the Non-Extended Revolving Credit Facility bear interest at a rate equal to either a base rate plus an applicable margin ranging from 3.75% to 4.25% or a eurodollar rate plus an applicable margin ranging from 4.75% to 5.25% and (b) effective April 17, 2021, following the receipt of certain routine regulatory approvals, the Extended Revolving Credit Facility bear interest at a rate equal to either a base rate plus an applicable margin ranging from 2.75% to 3.50% or a eurodollar rate plus an applicable margin ranging from 3.75% to 4.50%, in each case, calculated in a customary manner and determined based on our consolidated secured leverage ratio Deferred Financing Cost Deferred financing costs were incurred in connection with the issuance of the Notes and the Revolving Credit Facility. These costs are amortized using the effective interest method over the term of the related indebtedness and are included in interest expense in our Condensed Consolidated Statements of Income (Loss) For the three months ended March 31, 2021 and 2020, we recognized $4.1 million and $3.0 million, respectively, of non-cash interest expense related to the amortization of deferred financing costs.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Earnings Per Share	Note 12. Earnings Per Share Our time-based restricted stock awards are considered participating securities as they receive non-forfeitable rights to dividends at the same rate as common stock. As participating securities, we included these instruments in the computation of earnings per share under the two-class method described in FASB ASC 260, Earnings per Share We also have outstanding performance-based restricted stock units that contain forfeitable rights to receive dividends. Therefore, the awards are considered non-participating restrictive shares and are not dilutive under the two-class method until performance conditions are met. The dilutive effect of the Exchangeable Notes ( see Note 11 ) is calculated by using the “if-converted” method. This assumes an add-back of interest, net of income taxes, to net income attributable to shareholders as if the securities were converted at the beginning of the reporting period (or at time of issuance, if later) and the resulting common shares included in number of weighted average shares. The dilutive effect of the Warrants ( see Note 9 ) is calculated using the treasury-stock method. During the three months ended March 31, 2021 and 2020 The following sets forth the computation of basic and diluted earnings per share under the two-class method: Three Months Ended March 31, (Thousands, except per share data) 2021 2020 Basic earnings per share: Numerator: Net loss attributable to shareholders $ (4,438 ) $ (78,853 ) Less: Income allocated to participating securities (248 ) (200 ) Dividends declared on convertible preferred stock (3 ) (3 ) Net loss attributable to common shares $ (4,689 ) $ (79,056 ) Denominator: Basic weighted-average common shares outstanding 231,469 192,236 Basic earnings (loss) per common share $ (0.02 ) $ (0.41 ) Three Months Ended March 31, (Thousands, except per share data) 2021 2020 Diluted earnings per share: Numerator: Net loss attributable to shareholders $ (4,438 ) $ (78,853 ) Less: Income allocated to participating securities (248 ) (200 ) Dividends declared on convertible preferred stock (3 ) (3 ) Impact on if-converted dilutive securities - - Net loss attributable to common shares $ (4,689 ) $ (79,056 ) Denominator: Basic weighted-average common shares outstanding 231,469 192,236 Effect of dilutive non-participating securities - - Impact on if-converted dilutive securities - - Weighted-average shares for dilutive earnings per common share 231,469 192,236 Dilutive earnings (loss) per common share $ (0.02 ) $ (0.41 ) For the three months ended March 31, 2021

Segment Information

Segment Information	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Segment Information	Note 13. Segment Information Historically our management, including our chief executive officer, who is our chief operating decision maker, managed our operations as the four reportable segments, in addition to our corporate operations, as described below. Due to the sale of our towers business and wind down of the Consumer CLEC business, effective January 1, 2021, we manage our operations focused on our two primary businesses, Leasing and Fiber Infrastructure. Leasing : Represents the results from our leasing business, Uniti Leasing, which is engaged in the acquisition of mission-critical communications assets and leasing them back to anchor customers on either an exclusive or shared-tenant basis. Fiber Infrastructure : Represents the operations of our fiber business, Uniti Fiber, which is a leading provider of infrastructure solutions, including cell site backhaul and dark fiber, to the telecommunications industry. Towers : Represents the operations of our former towers business, Uniti Towers, through which we acquired and constructed tower and tower-related real estate and leased space on communications towers to wireless service providers and other tenants in the United States and Latin America . Starting in 2019, the Company completed a series of transactions to largely divest of its towers business: on April 2, 2019, May 23, 2019 and June 1, 2020 , the Company completed the sale s of its Latin American business, substantially all of its U.S. ground lease business , and its U.S. tower business , respectively. Consumer CLEC : Represents the operations of Talk America Services (“Talk America”) through which we operated the Consumer CLEC business, which prior to Uniti’s separation and spin-off from Windstream (the “Spin-Off”) was reported as an integrated operation within Windstream. Talk America provided local telephone, high-speed internet and long-distance services to customers in the eastern and central United States. As of the end of the second quarter of 2020, we substantially completed a wind down of our Consumer CLEC business. Corporate Represents our corporate and back office functions. Certain costs and expenses, primarily related to headcount, insurance, professional fees and similar charges, that are directly attributable to operations of our business segments are allocated to the respective segments. Management evaluates the performance of each segment using Adjusted EBITDA, which is a segment performance measure we define as net income determined in accordance with GAAP, before interest expense, provision for income taxes, depreciation and amortization, stock-based compensation expense and the impact, which may be recurring in nature, of transaction and integration related costs, costs associated with Windstream’s bankruptcy, costs associated with litigation claims made against us, costs associated with the implementation of our enterprise resource planning system, costs related to the settlement with Windstream, amortization of non-cash rights-of-use, the write off of unamortized deferred financing costs, costs incurred as a result of the early repayment of debt, including early tender premiums and costs associated with the termination of related hedging activities, gains or losses on dispositions, changes in the fair value of contingent consideration and financial instruments, and other similar or infrequent items (although we may not have had such charges in the periods presented). Adjusted EBITDA includes adjustments to reflect the Company’s share of Adjusted EBITDA from unconsolidated entities. The Company believes that net income, as defined by GAAP, is the most appropriate earnings metric; however, we believe that Adjusted EBITDA serves as a useful supplement to net income because it allows investors, analysts and management to evaluate the performance of our segments in a manner that is comparable period over period. Adjusted EBITDA should not be considered as an alternative to net income as determined in accordance with GAAP Selected financial data related to our segments is presented below for the three months ended March 31, 2021 and 2020 Three Months Ended March 31, 2021 (Thousands) Leasing Fiber Infrastructure Towers Consumer CLEC Corporate Subtotal of Reportable Segments Revenues $ 194,936 $ 77,650 $ - $ - $ - $ 272,586 Adjusted EBITDA $ 191,497 $ 29,721 $ - $ - $ (6,970 ) $ 214,248 Less: Interest expense 140,581 Depreciation and amortization 42,226 28,670 - - 68 70,964 Other expense, net 1,318 Transaction related and other costs 4,137 Stock-based compensation 3,335 Income tax benefit (2,557 ) Adjustments for equity in earnings from unconsolidated entities 972 Net loss $ (4,502 ) Three Months Ended March 31, 2020 (Thousands) Leasing Fiber Infrastructure Towers Consumer CLEC Corporate Subtotal of Reportable Segments Revenues $ 184,352 $ 77,407 $ 3,720 683 $ - $ 266,162 Adjusted EBITDA $ 181,879 $ 27,541 $ (8 ) $ 17 $ (7,715 ) $ 201,714 Less: Interest expense 178,393 Depreciation and amortization 54,622 30,061 769 594 75 86,121 Other expense, net 3,075 Transaction related and other costs 15,972 Stock-based compensation 2,995 Income tax benefit (4,576 ) Net loss $ (80,266 )

Commitments and Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2021
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 14. Commitments and Contingencies In the ordinary course of our business, we are subject to claims and administrative proceedings, none of which we believe are material or would be expected to have, individually or in the aggregate, a material adverse effect on our business, financial condition, cash flows or results of operations. Windstream Commitments Following consummation of our settlement agreement with Windstream, including entry into the Windstream Leases, we are obligated to make $490.1 million of cash payments to Windstream in equal installments over 20 consecutive quarters beginning in October 2020. As of the date of this Quarterly Report on Form 10-Q, the Company made the first three quarterly payments totaling $73.5 million Further, we are obligated to reimburse Windstream for up to an aggregate of $1.75 billion for certain growth capital improvements in long-term fiber and related assets made by Windstream (“Growth Capital Improvements”) through 2029. Uniti’s reimbursement commitment for Growth Capital Improvements does not require Uniti to reimburse Windstream for maintenance or repair expenditures (except for costs incurred for fiber replacements to the property leased under the master lease agreement, up to $70 million during the term), and each such reimbursement is subject to underwriting standards. Uniti’s total annual reimbursement commitments for the Growth Capital Improvements under both Windstream Leases (and under separate equipment loan facilities) are limited to $225 million per year in 2021 through 2024; $175 million per year in 2025 and 2026; and $125 million per year in 2027 through 2029. If the cost incurred by Windstream (or the successor tenant under a Windstream Lease) for Growth Capital Improvements in any calendar year exceeds the annual limit for such calendar year, Windstream (or such tenant, as the case may be) may submit such excess costs for reimbursement in any subsequent year and such excess costs shall be funded from the annual commitment amounts in such subsequent period. In addition, to the extent that reimbursements for Growth Capital Improvements funded in any calendar year during the term is less than the annual limit for such calendar year, the unfunded amount in any calendar year will carry-over and may be added to the annual limits for subsequent calendar years, subject to an annual limit of $250 million in any calendar year, except that, during calendar year 2021, our combined total obligation to fund Growth Capital Improvements may exceed $250 million to the extent of any unfunded excess amounts from calendar year 2020. Accordingly, because we funded $84.7 million of the $125 million limit in 2020, we are committed to fund up to $265.3 million of Growth Capital Improvements in 2021, of which we funded $42.7 million as of March 31, 2021. Upon reimbursement, the Company reduced the unamortized portion of deferred revenue related to these capital improvements and capitalized the difference between the cash provided to Windstream and the unamortized deferred revenue as a lease incentive. This lease incentive, which is $1.0 million and reported within other assets on our Consolidated Balance Sheet as of March 31, 2021, will be amortized against revenue over the initial term of the Windstream Leases. Other Litigation On July 3, 2019, SLF Holdings, LLC (“SLF”) filed a complaint against the Company, Uniti Fiber, and certain current and former officers of the Company (collectively, the “Defendants”) in the United States District Court for the Southern District of Alabama, in connection with Uniti Fiber’s purchase of Southern Light, LLC from SLF in July 2017. The complaint asserted claims for fraud and conspiracy, as well as claims under federal and Alabama securities laws, alleging that Defendants improperly failed to disclose to SLF the risk that the Spin-Off and entry into the Master Lease violated certain debt covenants of Windstream. On September 26, 2019, the action was transferred to United States District Court for the District of Delaware. On November 18, 2019, SLF filed an amended complaint, adding allegations that Defendants also failed to fully disclose the risk that the Master Lease purportedly could be recharacterized as a financing instead of a “true lease.” The amended complaint seeks compensatory and punitive damages, as well as reformation of the purchase agreement for the sale. On December 18, 2019, Defendants moved to dismiss the amended complaint in its entirety. That motion was fully briefed as of February 7, 2020, and a hearing on the motion was heard on May 12, 2020. On November 4, 2020, the court granted the Defendants’ motion and dismissed SLF’s amended complaint, in its entirety, with prejudice. On December 1, 2020, SLF filed a notice of appeal to the United States Court of Appeals for the Third Circuit from the district court’s dismissal order. The appeal is scheduled to be fully briefed by July 22, 2021. We have evaluated this matter under the guidance provided by ASC 450-20, Contingencies (“ASC 450”), and as of the date of this Quarterly Report on Form 10-Q, we consider a loss not to be probable and are unable to estimate a reasonably possible range of loss; therefore, we have not recorded any liabilities associated with these claims in our Condensed Consolidated Balance Sheet. Beginning on October 25, 2019, several purported shareholders filed separate putative class actions in the U.S. District Court for the Eastern District of Arkansas against the Company and certain of our officers, alleging violations of the federal securities laws (the “Shareholder Actions”), based on claims similar to those asserted in the SLF Action. On March 12, 2020, the U.S. District Court for the Eastern District of Arkansas consolidated the Shareholder Actions and appointed lead plaintiffs and lead counsel in the consolidated cases under the caption In re Uniti Group Inc. Securities Litigation. On May 11, 2020, lead plaintiffs filed a consolidated amended complaint in the consolidated Shareholder Actions. The consolidated amended complaint seeks to represent investors who acquired the Company’s securities between April 20, 2015 and February 15, 2019. The Shareholder Actions assert claims under Sections 10(b) and 20(a) of the Exchange Act and Rule 10b-5 promulgated thereunder, alleging that the Company made materially false and misleading statements by allegedly failing to disclose, among other things, the risk that the Spin-Off and entry into the Master Lease violated certain debt covenants of Windstream and/or the risk that the Master Lease purportedly could be recharacterized as a financing instead of a “true lease.” The Shareholder Actions seek class certification, unspecified monetary damages, costs and attorneys’ fees and other relief. On July 10, 2020, defendants moved to dismiss the consolidated amended complaint. On April 1, 2021, the court issued an order denying Defendants’ motion to dismiss. On April 15, 2021, Defendants filed a motion for reconsideration of the order or, in the alternative, for certification of an appeal of the decision to the Eighth Circuit. Plaintiffs formally opposed this motion on April 29, 2021. We intend to defend this matter vigorously, and, because it is still in its preliminary stages, we have not yet determined what effect this lawsuit will have, if any, on our financial position or results of operations. We have evaluated this matter under the guidance provided by ASC 450, and as of the date of this Quarterly Report on Form 10-Q, we consider a loss not to be probable and are unable to estimate a reasonably possible range of loss; therefore, we have not recorded any liabilities associated with these claims in our Condensed Consolidated Balance Sheet. We maintain insurance policies that would provide coverage to various degrees for potential liabilities arising from legal proceedings described above. Under t he terms of the tax matters agreement entered into on April 24, 2015 by the Company, Windstream Services, LLC and Windstream (the “Tax Matters Agreement”), in connection with the Spin-Off, we are generally responsible for any taxes imposed on Windstream that arise from the failure of the Spin-Off and the debt exchanges to qualify as tax-free for U.S. federal income tax purposes, within the meaning of Section 355 and Section 368(a)(1)(D) of the Code, as applicable, to the extent such failure to qualify is attributable to certain actions, events or transactions relating to our stock, indebtedness, assets or business, or a breach of the relevant representations or any covenants made by us in the Tax Matters Agreement, the materials submitted to the IRS in connection with the request for the private letter ruling or the representations provided in connection with the tax opinion. We believe that the probability of us incurring obligations under the Tax Matters Agreement are remote; and therefore, we

Accumulated Other Comprehensive

Accumulated Other Comprehensive (Loss) Income	3 Months Ended
	Mar. 31, 2021
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]
Accumulated Other Comprehensive (Loss) Income	Note 15. Accumulated Other Comprehensive (Loss) Income Changes in accumulated other comprehensive (loss) income by component is as follows for the three months ended March 31, 2021 and 2020: Three Months Ended March 31, (Thousands) 2021 2020 Cash flow hedge changes in fair value (loss) gain: Balance at beginning of period attributable to common shareholders $ (30,353 ) $ (23,442 ) Other comprehensive loss before reclassifications - (7,713 ) Amounts reclassified from accumulated other comprehensive income - 677 Balance at end of period (30,353 ) (30,478 ) Less: Other comprehensive loss attributable to noncontrolling interest - (125 ) Balance at end of period attributable to common shareholders (30,353 ) (30,353 ) Interest rate swap termination: Balance at beginning of period attributable to common shareholders 9,986 - Amounts reclassified from accumulated other comprehensive income 2,829 1,666 Balance at end of period 12,815 1,666 Less: Other comprehensive (loss) income attributable to noncontrolling interest 42 30 Balance at end of period attributable to common shareholders 12,773 1,636 Accumulated other comprehensive loss at end of period $ (17,580 ) $ (28,717 )

Subsequent Events

Subsequent Events	3 Months Ended
	Mar. 31, 2021
Subsequent Events [Abstract]
Subsequent Events	Note 16. Subsequent Events 2028 Secured Notes On April 20, 2021, the Borrowers issued $570 million aggregate principal amount of the 2028 Secured Notes and will use the net proceeds from the offering to fund the redemption in full of the 2023 Secured Notes on May 6, 2021. On April 20, 2021, the Borrowers deposited amounts sufficient to fund the redemption of the 2023 Secured Notes with the trustee and satisfied and discharged their respective obligations under the indenture governing the 2023 Secured Notes. The 2028 Secured Notes were issued at an issue price of 100% of their principal amount pursuant to an Indenture, dated as of April 20, 2021 (the “Indenture”), among the Borrowers, the guarantors named therein (collectively, the “Guarantors”) and Deutsche Bank Trust Company Americas, as trustee (in such capacity, the “Trustee”) and as collateral agent. The 2028 Secured Notes mature on April 15, 2028 and bear interest at a rate of 4.750% per year. Interest on the 2028 Secured Notes is payable on April 15 and October 15 of each year, beginning on October 15, 2021. The Borrowers may redeem the 2028 Secured Notes, in whole or in part, at any time prior to April 15, 2024 at a redemption price equal to 100% of the principal amount of the 2028 Secured Notes redeemed plus accrued and unpaid interest on the 2028 Secured Notes, if any, to, but not including, the redemption date, plus an applicable “make whole” premium described in the Indenture. Thereafter, the Borrowers may redeem the 2028 Secured Notes in whole or in part, at the redemption prices set forth in the Indenture. In addition, prior to April 15, 2024, the Borrowers may redeem up to 10% of the aggregate principal amount of the 2028 Secured Notes in any twelve month period at a redemption price equal to 103% of the principal amount thereof plus accrued and unpaid interest thereon, if any, to, but not including, the applicable redemption date. Further, at any time on or prior to April 15, 2024, up to 40% of the aggregate principal amount of the 2028 Secured Notes may be redeemed with the net cash proceeds of certain equity offerings at a redemption price of 104.750% of the principal amount plus accrued and unpaid interest, if any, to, but not including, the applicable redemption date; provided that at least 60% of aggregate principal amount of the originally issued 2028 Secured Notes remains outstanding. If certain changes of control of Uniti Group LP occur, holders of the 2028 Secured Notes will have the right to require the Borrowers to offer to repurchase their Notes at 101% of their principal amount plus accrued and unpaid interest, if any, to, but not including, the repurchase date. The 2028 Secured Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by the Company and on a senior secured basis by each of Uniti Group LP’s existing and future domestic restricted subsidiaries (other than the Borrowers) that guarantees indebtedness under the senior secured credit facilities (the “Subsidiary Guarantors”). In addition, the Borrowers will use commercially reasonable efforts to obtain necessary regulatory approval to allow certain non-guarantor subsidiaries of the Company to guarantee the 2028 Secured Notes, including by making filings to obtain such approval within 60 days of the issuance of the 2028 Secured Notes. The guarantees are subject to release under specified circumstances, including certain circumstances in which such guarantees may be automatically released without the consent of the holders of the 2028 Secured Notes. The 2028 Secured Notes and the related guarantees are the Borrowers’ and the Subsidiary Guarantors’ senior secured obligations and the Company’s senior unsecured obligations and rank equal in right of payment with all of the Borrowers’ and the Subsidiary Guarantors’ existing and future senior unsubordinated obligations; effectively senior to all unsecured indebtedness of the Borrowers and the Subsidiary Guarantors, including the Borrowers’ existing senior unsecured notes, to the extent of the value of the collateral securing the 2028 Secured Notes; effectively equal with all of the Borrowers’ and the Subsidiary Guarantors’ existing and future indebtedness that is secured by first-priority liens on the collateral (including indebtedness under the senior secured credit facilities and existing secured notes); senior in right of payment to any of the Borrowers’ and Subsidiary Guarantors’ future subordinated indebtedness; and structurally subordinated to all existing and future liabilities (including trade payables) of the Company’s subsidiaries (other than the Borrowers) that do not guarantee the 2028 Secured Notes. The 2028 Secured Notes and the related guarantees will also be effectively subordinated to any existing or future indebtedness that is secured by liens on assets that do not constitute a part of the collateral securing the 2028 Secured Notes to the extent of the value of such assets. The 2028 Secured Notes and the related guarantees will be secured by liens on substantially all of the assets of the Borrowers and the Subsidiary Guarantors, which assets also ratably secure obligations under the existing secured notes and senior secured credit facilities, in each case, subject to certain exceptions and permitted liens. The collateral will not include real property (below a specified threshold of value), but will include certain fixtures and other equipment as well as cash that we receive pursuant the Windstream Leases. The Indenture contains customary high yield covenants limiting the ability of Uniti Group LP and its restricted subsidiaries to: incur or guarantee additional indebtedness; incur or guarantee secured indebtedness; pay dividends or distributions on, or redeem or repurchase, capital stock; make certain investments or other restricted payments; sell assets; enter into transactions with affiliates; merge or consolidate or sell all or substantially all of their assets; and create restrictions on the ability of the Issuers and their restricted subsidiaries to pay dividends or other amounts to the Borrowers. These covenants are subject to a number of limitations, qualifications and exceptions. The Indenture also contains customary events of default.

Basis of Presentation and Sum_2

Basis of Presentation and Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2021
Accounting Policies [Abstract]
Concentration of Credit Risks	Concentration of Credit Risks e were party to a long-term exclusive triple-net lease (the “Master Lease”) with Windstream Holdings, Inc. (together with Windstream Holdings II, LLC, its successor in interest, and its subsidiaries, “Windstream”) pursuant to which a substantial portion of our real property was leased to Windstream and from which a substantial portion of our leasing revenues were derived. On September 18, 2020, Uniti and Windstream bifurcated the Master Lease and entered into two structurally similar master leases (collectively, the “Windstream Leases”), which amended and restated the Master Lease in its entirety. Windstream Windstream Windstream Prior to its emergence from bankruptcy on September 21, 2020, Windstream was a publicly traded company subject to the periodic filing requirements of the Securities Exchange Act of 1934, as amended (the Exchange Act”). Windstream’s historic filings through their quarter ended June 30, 2020 can be found at www.sec.gov. Additionally, the Windstream audited financial statements as of December 31, 2020 and for the period from September 22, 2020 to December 31, 2020 and as of December 31, 2019 and for the period from January 1, 2020 to September 21, 2020 and for each of the two years in the period ended December 31, 2019 are included as an exhibit to our Annual Report. We monitor the credit quality of Windstream through numerous methods, including by (i) reviewing credit ratings of Windstream by nationally recognized credit agencies, (ii) reviewing the financial statements of Windstream that are required to be delivered to us pursuant to the Windstream Leases, (iii) monitoring news reports regarding Windstream and its business, (iv) conducting research to ascertain industry trends potentially affecting Windstream, (v) monitoring Windstream’s compliance with the terms of the Windstream Leases and (vi) monitoring the timeliness of its payments under the Windstream Leases. As of the date of this Quarterly Report on Form 10-Q, Windstream is current on all lease payments. We note that in August 2020, Moody’s Investor Service assigned a B3 corporate family rating with a stable outlook to Windstream in connection with its post-emergence exit financing. At the same time, S&P Global Ratings assigned Windstream a B- issuer rating with a stable outlook. In order to assist us in our continuing assessment of Windstream’s creditworthiness, we periodically receive certain confidential financial information and metrics from Windstream.
Recently Adopted Accounting Standards	Recently Adopted Accounting Pronouncements In August 2020, the FASB issued ASU 2020-06, Debt - Debt with Conversion and Other Options (Subtopic 470- 20) and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40): Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity In addition, entities must presume share settlement for purposes of calculating diluted EPS when an instrument may be settled in cash or shares. ASU 2020-06 is effective for fiscal years beginning after December 15, 2021, and interim periods within those fiscal years, with early adoption permitted. The Company elected to early adopt the guidance ASU 2020-06 as of January 1, 2021 using the modified retrospective transition method. As a result of early adopting ASU 2020-06, the Company made certain adjustments to its accounting for the outstanding exchangeable senior unsecured notes. The adoption of ASU 2020-06 resulted in the re-combination of the liability and equity components of these notes into a single liability instrument. The carrying value as of December 31, 2020, totaled approximately $275.4 million and as a result of the adoption increased by $61.1 million to $336.5 million as of January 1, 2021. Because of this adoption, the effective interest rate on the exchangeable senior unsecured notes went from 11.1% to 4.8%. Additional paid-in-capital was reduced by $59.9 million and deferred tax liabilities were reduced by $15.8 million. Approximately $14.6 million of cumulative effect of adoption was recognized to the opening balance of retained earnings as of January 1, 2021.

Revenues (Tables)

Revenues (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Revenues Disaggregated by Revenue Stream	The following table presents our revenues disaggregated by revenue stream. Three Months Ended March 31, (Thousands) 2021 2020 Revenue disaggregated by revenue stream Revenue from contracts with customers Fiber Infrastructure Lit backhaul $ 25,044 $ 28,192 Enterprise and wholesale 21,000 19,258 E-Rate and government 19,364 20,937 Other 816 548 Fiber Infrastructure $ 66,224 $ 68,935 Consumer CLEC - 683 Leasing 1,167 - Total revenue from contracts with customers 67,391 69,618 Revenue accounted for under other applicable guidance 205,195 196,544 Total revenue $ 272,586 $ 266,162
Schedule of Contract Assets and Contract Liabilities	The following table provides information about contract assets and contract liabilities accounted for under Topic 606. (Thousands) Contract Assets Contract Liabilities Balance at December 31, 2020 $ 3,462 $ 18,601 Balance at March 31, 2021 $ 2,460 $ 15,949

Leases (Tables)

Leases (Tables)	3 Months Ended
	Mar. 31, 2021
Leases [Abstract]
Components of Lease Income	The components of lease income for the three months ended March 31, 2021 Three Months Ended March 31, (Thousands) 2021 2020 Lease income - operating leases $ 205,195 $ 196,544
Lease Payments to be Received under Non-Cancellable Operating Leases	Lease payments to be received under non-cancellable operating leases where we are the lessor for the remainder of the lease terms as of March 31, 2021 are as follows: (Thousands) March 31, 2021 (1) 2021 $ 551,099 2022 748,612 2023 750,261 2024 750,839 2025 751,855 Thereafter 3,651,772 Total lease receivables $ 7,204,438 (1)
Schedule of Underlying Assets under Operating Leases	The underlying assets under operating leases where we are the lessor are summarized as follows: (Thousands) March 31, 2021 December 31, 2020 Land $ 26,596 $ 26,596 Building and improvements 335,534 335,495 Poles 270,102 266,758 Fiber 3,042,228 2,994,465 Equipment 428 421 Copper 3,881,801 3,850,988 Conduit 89,776 89,773 Tower assets 1,397 1,397 Finance lease assets 32,660 32,660 Other assets 10,671 10,425 7,691,193 7,608,978 Less: accumulated depreciation (5,268,648 ) (5,222,731 ) Underlying assets under operating leases, net (1) $ 2,422,545 $ 2,386,247 (1)
Schedule of Depreciation Expense for Underlying Assets for Operating Leases	Depreciation expense for the underlying assets under operating leases where we are the lessor for the three months ended March 31, 2021 and 2020, respectively, is summarized as follows: Three Months Ended March 31, (Thousands) 2021 2020 Depreciation expense for underlying assets under operating leases $ 45,913 $ 56,134
Components of Lease Cost	The components of lease cost for the three months ended March 31, 2021 and 2020 Three Months Ended March 31, (Thousands) 2021 2020 Finance lease cost Amortization of ROU assets $ 1,362 $ 1,026 Interest on lease liabilities 910 989 Total finance lease cost 2,272 2,015 Operating lease cost 5,113 7,538 Short-term lease cost 692 483 Variable lease cost 187 18 Less sublease income (2,982 ) (3,685 ) Total lease cost $ 5,282 $ 6,369
Summary of Amounts Reported in Condensed Consolidated Balance Sheets for Leases	Amounts reported in the Condensed Consolidated Balance Sheets for leases where we are the lessee were as follows: (Thousands) Location on Condensed Consolidated Balance Sheets March 31, 2021 December 31, 2020 Operating leases ROU assets, net (1) Other assets, net $ 94,210 $ 97,850 Lease liabilities (2) Accounts payable, accrued expenses and other liabilities, net 68,379 71,483 Finance leases ROU asset, gross (3) Property, plant and equipment, net $ 125,313 $ 128,098 Lease liabilities (4) Finance lease obligations 47,646 48,724 Weighted-average remaining lease term Operating leases 12.5 years 12.2 years Finance leases 13.2 years 13.3 years Weighted-average discount rate Operating leases 9.8 % 9.9 % Finance leases 8.0 % 8.0 % (1) (2) (3) (4)
Schedule of Other Information Related to Leases	Other information related to leases as of March 31, 2021 and 2020 , respectively, (Thousands) 2021 2020 Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from finance leases $ 910 $ 989 Operating cash flows from operating leases 5,533 7,452 Financing cash flows from finance leases 710 1,026 Non-cash items: New operating leases and remeasurements, net $ 792 $ 2,985 New finance leases - -
Future Lease Payments Under Non-Cancellable Operating and Finance Leases	Future lease payments under non-cancellable leases as of March 31, 2021 (Thousands) Operating Leases (1) Finance Leases (2) 2021 $ 14,952 $ 5,045 2022 17,567 6,622 2023 15,003 6,601 2024 10,810 6,236 2025 6,828 5,184 Thereafter 35,903 45,114 Total undiscounted lease payments $ 101,063 $ 74,802 Less: imputed interest (32,684 ) (27,156 ) Total lease liabilities $ 68,379 $ 47,646 (1) (2)
Future Sublease Rentals	Future sublease rentals as of March 31, 2021 are as follows: (Thousands) Sublease Rentals 2021 $ 6,219 2022 8,746 2023 8,799 2024 8,851 2025 8,904 Thereafter 124,715 Total $ 166,234

Assets and Liabilities Held f_2

Assets and Liabilities Held for Sale (Tables)	3 Months Ended
	Mar. 31, 2021
Discontinued Operations And Disposal Groups [Abstract]
Schedule of Assets and Liabilities Classified as Held for Sale	The following table presents the assets and liabilities associated with the Opco-Propco transaction with Everstream classified as held for sale as of March 31, 2021 and December 31, 2020: (Thousands) March 31, 2021 December 31, 2020 Assets: Property, pant and equipment, net $ 44,208 $ 44,150 Goodwill 17,794 17,794 Intangible assets, net 7,264 10,720 Right of use assets, net 18,484 20,679 Total assets $ 87,750 $ 93,343 Liabilities: Lease liabilities $ 16,885 $ 17,647 Intangible liabilities, net 4,492 4,849 Finance lease obligations 32,790 33,256 Total Liabilities $ 54,167 $ 55,752

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2021
Fair Value Disclosures [Abstract]
Schedule of Fair Value Valuation of Financial Instruments	The following table summarizes the fair value of our financial instruments at March 31, 2021 and December 31, 2020: (Thousands) Total Quoted Prices in Active Markets (Level 1) Prices with Other Observable Inputs (Level 2) Prices with Unobservable Inputs (Level 3) At March 31, 2021 Liabilities Senior secured notes - 6.00% , due April 15, 2023 $ 558,938 $ - $ 558,938 $ - Senior secured notes - 7.875%, due February 15, 2025 2,421,563 - 2,421,563 - Senior unsecured notes - 8.25%, due October 15, 2023 58,966 - 58,966 - Senior unsecured notes - 7.125%, due December 15, 2024 617,250 - 617,250 - Senior unsecured notes - 6.50% , due February 15, 2029 1,094,738 - 1,094,738 - Exchangeable senior notes - 4.00%, due June 15, 2024 409,946 - 409,946 - Senior secured revolving credit facility, variable rate, due December 10, 2024 160,000 - 160,000 - Settlement payable 398,887 - 398,887 - Derivative liability, net 19,908 - 19,908 - Total $ 5,740,196 $ - $ 5,740,196 $ - (Thousands) Total Quoted Prices in Active Markets (Level 1) Prices with Other Observable Inputs (Level 2) Prices with Unobservable Inputs (Level 3) At December 31, 2020 Liabilities Senior secured notes - 6.00%, due April 15, 2023 $ 561,000 $ - $ 561,000 $ - Senior secured notes - 7.875%, due February 15, 2025 2,410,313 - 2,410,313 - Senior unsecured notes - 8.25%, due October 15, 2023 1,112,775 - 1,112,775 - Senior unsecured notes - 7.125%, due December 15, 2024 601,500 - 601,500 - Exchangeable senior unsecured notes - 4.00%, due June 15, 2024 426,058 - 426,058 - Senior secured revolving credit facility, variable rate, due April 24, 2022 110,000 - 110,000 - Settlement payable 418,840 - 418,840 - Derivative liability, net 22,897 - 22,897 - Contingent consideration 2,957 - - 2,957 Total $ 5,666,340 $ - $ 5,663,383 $ 2,957
Roll Forward of Liabilities Measured at Fair Value on Recurring Basis Using Unobservable Inputs	The following is a roll forward of our liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3): (Thousands) December 31, 2020 Transfers into Level 3 (Gain)/Loss included in earnings Settlements March 31, 2021 Contingent consideration $ 2,957 $ - $ 22 $ (2,979 ) $ -

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	3 Months Ended
	Mar. 31, 2021
Property Plant And Equipment [Abstract]
Schedule of Carrying Value of Property, Plant and Equipment	The carrying value of property, plant and equipment is as follows: (Thousands) Depreciable Lives March 31, 2021 December 31, 2020 Land Indefinite $ 27,936 $ 27,945 Building and improvements 3 - 40 years 351,351 351,305 Poles 30 years 270,102 266,758 Fiber 30 years 3,796,553 3,737,372 Equipment 5 - 7 years 306,931 298,912 Copper 20 years 3,881,801 3,850,987 Conduit 30 years 89,776 89,773 Tower assets 20 years 8,571 8,571 Finance lease assets (1 ) 71,318 74,103 Other assets 15 - 20 years 10,675 10,553 Corporate assets 3 - 7 years 13,628 13,475 Construction in progress (1 ) 68,719 47,086 8,897,361 8,776,840 Less accumulated depreciation (5,568,122 ) (5,503,487 ) Net property, plant and equipment $ 3,329,239 $ 3,273,353 (1) See our Annual Report for property, plant and equipment accounting policies.

Derivative Instruments and He_2

Derivative Instruments and Hedging Activities (Tables)	3 Months Ended
	Mar. 31, 2021
Derivative Instruments And Hedging Activities Disclosure [Abstract]
Summary of Gross Amount of Derivative Instruments Subject to Master Netting Arrangements With Same Counterparty	The following tables present the gross amounts of our derivative instruments subject to master netting arrangements with the same counterparty as of March 31, 2021 and December 31, 2020: Offsetting of Derivative Assets and Liabilities (Thousands) Gross Amounts of Recognized Assets or Liabilities Gross Amounts Offset in the Condensed Consolidated Balance Sheets Net Amounts of Assets or Liabilities presented in the Condensed Consolidated Balance Sheets At March 31, 2021 Assets Interest rate swaps $ 23,602 $ (23,602 ) $ - Total $ 23,602 $ (23,602 ) $ - Liabilities Interest rate swaps $ 43,510 $ (23,602 ) $ 19,908 Total $ 43,510 $ (23,602 ) $ 19,908 Offsetting of Derivative Assets and Liabilities (Thousands) Gross Amounts of Recognized Assets or Liabilities Gross Amounts Offset in the Condensed Consolidated Balance Sheets Net Amounts of Assets or Liabilities presented in the Condensed Consolidated Balance Sheets At December 31, 2020 Assets Interest rate swaps $ 27,869 $ (27,869 ) $ - Total $ 27,869 $ (27,869 ) $ - Liabilities Interest rate swaps $ 50,766 $ (27,869 ) $ 22,897 Total $ 50,766 $ (27,869 ) $ 22,897
Summary of Fair Value of Derivative Instruments and Presentation in Condensed Consolidated Balance Sheet	The following table summarizes the fair value and the presentation in our Condensed Consolidated Balance Sheets: (Thousands) Location on Condensed Consolidated Balance Sheets March 31, 2021 December 31, 2020 Interest rate swaps Derivative liability, net $ 19,908 $ 22,897

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2021
Goodwill And Intangible Assets And Liabilities Disclosure [Abstract]
Schedule of Carrying Amount of Goodwill	There were no changes in the carrying amount of goodwill occurring during the three months ended March 31, 2021. (Thousands) Fiber Infrastructure Total Goodwill at December 31, 2020 $ 601,878 $ 601,878 Goodwill at March 31, 2021 601,878 601,878
Schedule of Carrying Value of Other Intangible Assets	(Thousands) March 31, 2021 December 31, 2020 Original Cost Accumulated Amortization Original Cost Accumulated Amortization Finite life intangible assets: Customer lists $ 416,104 $ (88,666 ) $ 416,104 $ (82,989 ) Contracts 52,536 (3,283 ) 48,269 (1,068 ) Underlying Rights 10,497 (175 ) 10,497 (87 ) Total intangible assets $ 479,137 $ 474,870 Less: accumulated amortization (92,124 ) (84,145 ) Total intangible assets, net $ 387,013 $ 390,725 Finite life intangible liabilities: Below-market leases $ 191,154 (5,347 ) $ 190,086 (2,200 ) Finite life intangible liabilities: Below-market leases $ 191,154 $ 190,086 Less: accumulated amortization (5,347 ) (2,200 ) Total intangible liabilities, net $ 185,807 $ 187,886

Notes and Other Debt (Tables)

Notes and Other Debt (Tables)	3 Months Ended
	Mar. 31, 2021
Long Term Debt [Abstract]
Schedule of Notes and Other Debt	All debt, including the senior secured credit facility and notes described below, are obligations of the Operating Partnership and/or certain of its subsidiaries as discussed below. The Company is, however, a guarantor of such debt. Notes and other debt are as follows: (Thousands) March 31, 2021 December 31, 2020 Principal amount $ 5,073,819 $ 4,965,000 Less unamortized discount, premium and debt issuance costs (84,929 ) (148,476 ) Notes and other debt less unamortized discount, premium and debt issuance costs $ 4,988,890 $ 4,816,524 Notes and other debt at March 31, 2021 and December 31, 2020 consisted of the following: March 31, 2021 December 31, 2020 (Thousands) Principal Unamortized Discount, Premium and Debt Issuance Costs Principal Unamortized Discount, Premium and Debt Issuance Costs Senior secured notes - 7.875%, due February 15, 2025 (discount is based on imputed interest rate of 8.38%) $ 2,250,000 (37,808 ) $ 2,250,000 $ (39,852 ) Senior unsecured notes - 6.50%, due February 24, 2029 (discount is based on imputed interest rate of 6.83%) 1,110,000 (22,263 ) - - Senior secured notes - 6.00%, due April 15, 2023 (discount is based on imputed interest rate of 6.49%) 550,000 (3,642 ) 550,000 (4,053 ) Senior unsecured notes - 8.25%, due October 15, 2023 (discount is based on imputed interest rate of 9.06%) 58,819 (1,142 ) 1,110,000 (22,024 ) Senior unsecured notes - 7.125% due December 15, 2024 (discount is based on imputed interest rate of 7.38%) 600,000 (5,057 ) 600,000 (5,316 ) Senior unsecured notes - 4.00%, due June 15, 2024 (discount is based on imputed interest rate of 4.77%) 345,000 (7,935 ) 345,000 (69,608 ) Senior secured revolving credit facility, variable rate, due December 10, 2024 160,000 (7,082 ) 110,000 (7,623 ) Total $ 5,073,819 $ (84,929 ) $ 4,965,000 $ (148,476 )

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2021
Earnings Per Share [Abstract]
Schedule of Earnings Per Share Basic and Diluted	The following sets forth the computation of basic and diluted earnings per share under the two-class method: Three Months Ended March 31, (Thousands, except per share data) 2021 2020 Basic earnings per share: Numerator: Net loss attributable to shareholders $ (4,438 ) $ (78,853 ) Less: Income allocated to participating securities (248 ) (200 ) Dividends declared on convertible preferred stock (3 ) (3 ) Net loss attributable to common shares $ (4,689 ) $ (79,056 ) Denominator: Basic weighted-average common shares outstanding 231,469 192,236 Basic earnings (loss) per common share $ (0.02 ) $ (0.41 ) Three Months Ended March 31, (Thousands, except per share data) 2021 2020 Diluted earnings per share: Numerator: Net loss attributable to shareholders $ (4,438 ) $ (78,853 ) Less: Income allocated to participating securities (248 ) (200 ) Dividends declared on convertible preferred stock (3 ) (3 ) Impact on if-converted dilutive securities - - Net loss attributable to common shares $ (4,689 ) $ (79,056 ) Denominator: Basic weighted-average common shares outstanding 231,469 192,236 Effect of dilutive non-participating securities - - Impact on if-converted dilutive securities - - Weighted-average shares for dilutive earnings per common share 231,469 192,236 Dilutive earnings (loss) per common share $ (0.02 ) $ (0.41 )

Segment Information (Tables)

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2021
Segment Reporting [Abstract]
Schedule of Segment Reporting Information	Selected financial data related to our segments is presented below for the three months ended March 31, 2021 and 2020 Three Months Ended March 31, 2021 (Thousands) Leasing Fiber Infrastructure Towers Consumer CLEC Corporate Subtotal of Reportable Segments Revenues $ 194,936 $ 77,650 $ - $ - $ - $ 272,586 Adjusted EBITDA $ 191,497 $ 29,721 $ - $ - $ (6,970 ) $ 214,248 Less: Interest expense 140,581 Depreciation and amortization 42,226 28,670 - - 68 70,964 Other expense, net 1,318 Transaction related and other costs 4,137 Stock-based compensation 3,335 Income tax benefit (2,557 ) Adjustments for equity in earnings from unconsolidated entities 972 Net loss $ (4,502 ) Three Months Ended March 31, 2020 (Thousands) Leasing Fiber Infrastructure Towers Consumer CLEC Corporate Subtotal of Reportable Segments Revenues $ 184,352 $ 77,407 $ 3,720 683 $ - $ 266,162 Adjusted EBITDA $ 181,879 $ 27,541 $ (8 ) $ 17 $ (7,715 ) $ 201,714 Less: Interest expense 178,393 Depreciation and amortization 54,622 30,061 769 594 75 86,121 Other expense, net 3,075 Transaction related and other costs 15,972 Stock-based compensation 2,995 Income tax benefit (4,576 ) Net loss $ (80,266 )

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive (Loss) Income (Tables)	3 Months Ended
	Mar. 31, 2021
Accumulated Other Comprehensive Income Loss Net Of Tax [Abstract]
Schedule of Changes in Accumulated Other Comprehensive (Loss) Income by Component	Changes in accumulated other comprehensive (loss) income by component is as follows for the three months ended March 31, 2021 and 2020: Three Months Ended March 31, (Thousands) 2021 2020 Cash flow hedge changes in fair value (loss) gain: Balance at beginning of period attributable to common shareholders $ (30,353 ) $ (23,442 ) Other comprehensive loss before reclassifications - (7,713 ) Amounts reclassified from accumulated other comprehensive income - 677 Balance at end of period (30,353 ) (30,478 ) Less: Other comprehensive loss attributable to noncontrolling interest - (125 ) Balance at end of period attributable to common shareholders (30,353 ) (30,353 ) Interest rate swap termination: Balance at beginning of period attributable to common shareholders 9,986 - Amounts reclassified from accumulated other comprehensive income 2,829 1,666 Balance at end of period 12,815 1,666 Less: Other comprehensive (loss) income attributable to noncontrolling interest 42 30 Balance at end of period attributable to common shareholders 12,773 1,636 Accumulated other comprehensive loss at end of period $ (17,580 ) $ (28,717 )

Organization and Description _2

Organization and Description of Business - Additional Information (Details) - Segment	Jan. 01, 2021	Mar. 31, 2021	Dec. 31, 2020
Organization And Description Of Business [Line Items]
Number of operating business segments	2		4
Uniti Group LP
Organization And Description Of Business [Line Items]
Percentage of partnership interests owned		98.50%

Basis of Presentation and Sum_3

Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands	Jan. 01, 2021	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Summary Of Significant Accounting Policies [Line Items]
Accounting Standards Update Extensible List		unit:AccountingStandardUpdate202006Member
Debt instrument carrying amount		$ 5,073,819		$ 4,965,000
Additional paid-in capital		1,150,550		1,209,141
Cumulative Effect Adjustment for Adoption of New Accounting Standard
Summary Of Significant Accounting Policies [Line Items]
Change in accounting principle, ASU, Adopted	true
Accounting Standards Update Extensible List	unit:AccountingStandardUpdate202006Member
Change in accounting principle, ASU, Transition option elected [Extensible List]	unit:AccountingStandardUpdate202006ModifiedRetrospectiveMember
Change in accounting principle, ASU, Adoption date	Jan. 1, 2021
Additional paid-in capital		(59,900)
Deferred tax liabilities		(15,800)
Retained earnings		$ 14,600
Cumulative Effect Adjustment for Adoption of New Accounting Standard | Exchangeable Senior Unsecured Notes
Summary Of Significant Accounting Policies [Line Items]
Debt instrument carrying amount	$ 336,500			$ 275,400
Increase in carrying amount of debt due to adoption	$ 61,100
Effective interest rate	4.80%			11.10%
Windstream | Revenue
Summary Of Significant Accounting Policies [Line Items]
Windstream leases and the master lease revenue percentage		66.30%	65.10%

Revenues - Revenues Disaggregat

Revenues - Revenues Disaggregated by Revenue Stream (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation Of Revenue [Line Items]
Total revenue from contracts with customers	$ 67,391	$ 69,618
Total revenues	272,586	266,162
Fiber Infrastructure
Disaggregation Of Revenue [Line Items]
Total revenue from contracts with customers	66,224	68,935
Total revenues	77,650	77,407
Fiber Infrastructure | Lit Backhaul
Disaggregation Of Revenue [Line Items]
Total revenue from contracts with customers	25,044	28,192
Fiber Infrastructure | Enterprise and Wholesale
Disaggregation Of Revenue [Line Items]
Total revenue from contracts with customers	21,000	19,258
Fiber Infrastructure | E-Rate and Government
Disaggregation Of Revenue [Line Items]
Total revenue from contracts with customers	19,364	20,937
Fiber Infrastructure | Other
Disaggregation Of Revenue [Line Items]
Total revenue from contracts with customers	816	548
Consumer CLEC
Disaggregation Of Revenue [Line Items]
Total revenue from contracts with customers		683
Total revenues		683
Leasing
Disaggregation Of Revenue [Line Items]
Total revenue from contracts with customers	1,167
Total revenues	194,936	184,352
ASU 2016-02
Disaggregation Of Revenue [Line Items]
Total revenues	$ 205,195	$ 196,544

Revenues - Additional Informati

Revenues - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
ASU 2016-02
Revenue Recognition [Line Items]
Lease receivables	$ 19.1	$ 17.5
ASC 2014-09
Revenue Recognition [Line Items]
Receivables from contracts with customers	32.2	$ 45.1
Revenue recognized that was included in the contract liability	5.1
Future revenues under contract	461.7
Contracts currently being invoiced	396.4
Backlog for sales bookings	$ 65.3
Average remaining contract term of backlog sales bookings	6 years 7 months 6 days

Revenues - Schedule of Contract

Revenues - Schedule of Contract Assets and Contract Liabilities (Details) - ASC 2014-09 $ in Thousands	Mar. 31, 2021USD ($)
Deferred Revenue Arrangement [Line Items]
Balance, Contract Assets at December 31, 2020	$ 3,462
Balance, Contract Assets at March 31, 2021	2,460
Balance, Contract Liabilities at December 31, 2020	18,601
Balance, Contract Liabilities at March 31, 2021	$ 15,949

Revenues - Additional Informa_2

Revenues - Additional Information (Details 1)	Mar. 31, 2021
ASC 2014-09 | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-04-01
Revenue Recognition [Line Items]
Average remaining contract term for contracts currently billing	1 year 9 months 18 days

Leases - Additional Information

Leases - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)
Leases [Line Items]
Lessor, operating lease, existence of option to extend [true false]	true
Lessor, lease option to extend, description	options to extend or renew the leases for less than one year to 20 years
Lessor, operating lease, existence of option to terminate [true false]	true
Lessor, lease option to terminate, description	options to terminate the leases within one to six months
Lessee, operating lease, existence of option to extend [true false]	true
Lessee, lease option to extend, description	options to extend or renew the leases for less than one year to 20 years
Lessee, operating lease, existence of option to terminate [true false]	true
Lessee, option to terminate, description	options to terminate the leases within one to six months
Short term lease commitments	$ 2.6
Minimum
Leases [Line Items]
Lessor, initial lease term	1 year
Lessor, lease renewal term	1 year
Lessor operating lease, termination	1 month
Lessee, initial lease term	1 year
Lessee, lease renewal term	1 year
Lessee, lease option to terminate, description	1 month
Maximum
Leases [Line Items]
Lessor, initial lease term	35 years
Lessor, lease renewal term	20 years
Lessor operating lease, termination	6 months
Lessee, initial lease term	30 years
Lessee, lease renewal term	20 years
Lessee, lease option to terminate, description	6 months

Leases - Components of Lease In

Leases - Components of Lease Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Lease income - operating leases	$ 205,195	$ 196,544

Leases - Lease Payments to be R

Leases - Lease Payments to be Received under Non-Cancellable Operating Leases (Details) $ in Thousands	Mar. 31, 2021USD ($)	[1]
Leases [Abstract]
2021	$ 551,099
2022	748,612
2023	750,261
2024	750,839
2025	751,855
Thereafter	3,651,772
Total lease receivables	$ 7,204,438
[1]	Total future minimum lease payments to be received include $6.2 billion relating to the Windstream Leases.

Leases - Lease Payments to be_2

Leases - Lease Payments to be Received under Non-Cancellable Operating Leases (Parenthetical) (Details) $ in Thousands	Mar. 31, 2021USD ($)
Lessee Lease Description [Line Items]
Total future minimum lease payments to be received	$ 7,204,438	[1]
Windstream
Lessee Lease Description [Line Items]
Total future minimum lease payments to be received	$ 6,200,000
[1]	Total future minimum lease payments to be received include $6.2 billion relating to the Windstream Leases.

Leases - Schedule of Underlying

Leases - Schedule of Underlying Assets under Operating Leases (Details) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		$ 7,691,193	$ 7,608,978
Less: accumulated depreciation		(5,268,648)	(5,222,731)
Underlying assets under operating leases, net	[1]	2,422,545	2,386,247
Land
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		26,596	26,596
Building and Improvements
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		335,534	335,495
Poles
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		270,102	266,758
Fiber
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		3,042,228	2,994,465
Equipment
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		428	421
Copper
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		3,881,801	3,850,988
Conduit
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		89,776	89,773
Tower assets
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		1,397	1,397
Finance Lease Assets
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		32,660	32,660
Other assets
Lessor Lease Description [Line Items]
Underlying assets under operating leases, gross		$ 10,671	$ 10,425
[1]	Includes $4.5 million assets under operating leases in Held for Sale as of March 31, 2021.

Leases - Schedule of Underlyi_2

Leases - Schedule of Underlying Assets under Operating Leases (Parenthetical) (Details) $ in Millions	Mar. 31, 2021USD ($)
Uniti Fiber Northeast Operations and Dark Fiber IRU Contracts | Disposal Group, Held for Sale, Not qualified as Discontinued Operation
Lessor Lease Description [Line Items]
Assets under operating leases	$ 4.5

Leases - Schedule of Depreciati

Leases - Schedule of Depreciation Expense for Underlying Assets under Operating Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Depreciation expense for underlying assets under operating leases	$ 45,913	$ 56,134

Leases - Components of Lease Co

Leases - Components of Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Leases [Abstract]
Amortization of ROU assets	$ 1,362	$ 1,026
Interest on lease liabilities	910	989
Total finance lease cost	2,272	2,015
Operating lease cost	5,113	7,538
Short-term lease cost	692	483
Variable lease cost	187	18
Less sublease income	(2,982)	(3,685)
Total lease cost	$ 5,282	$ 6,369

Leases - Summary of Amounts Rep

Leases - Summary of Amounts Reported in Condensed Consolidated Balance Sheets for Leases (Details) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020
Operating leases
ROU assets, net	[1]	$ 94,210	$ 97,850
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]		Other assets, net	Other assets, net
Lease liabilities	[2]	$ 68,379	$ 71,483
Operating Lease, Liability, Statement of Financial Position [Extensible List]		Accounts payable, accrued expenses and other liabilities, net	Accounts payable, accrued expenses and other liabilities, net
Finance leases
ROU asset, gross	[3]	$ 125,313	$ 128,098
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]		Property, plant and equipment, net	Property, plant and equipment, net
Lease liabilities	[4]	$ 47,646	$ 48,724
Finance Lease Liability Statement Of Financial Position Extensible List		unit:FinanceLeaseLiabilityExcludingFinanceLeaseObligationsInHeldForSale	unit:FinanceLeaseLiabilityExcludingFinanceLeaseObligationsInHeldForSale
Weighted-average remaining lease term
Operating leases		12 years 6 months	12 years 2 months 12 days
Finance leases		13 years 2 months 12 days	13 years 3 months 18 days
Weighted-average discount rate
Operating leases		9.80%	9.90%
Finance leases		8.00%	8.00%
[1]	Includes $18.5 million ROU assets in Held for Sale as of March 31, 2021
[2]	Includes $16.9 million lease liabilities in Held for Sale as of March 31, 2021
[3]	Includes $54.0 million finance lease assets in Held for Sale as of March 31, 2021
[4]	Includes $32.8 million finance lease obligations in Held for Sale as of March 31, 2021

Leases - Summary of Amounts R_2

Leases - Summary of Amounts Reported in Consolidated Balance Sheets for Leases (Parenthetical) (Details) - Uniti Fiber Northeast Operations and Dark Fiber IRU Contracts - Disposal Group, Held for Sale, Not qualified as Discontinued Operation $ in Millions	Mar. 31, 2021USD ($)
Lessee Lease Description [Line Items]
ROU assets	$ 18.5
Lease liabilities	16.9
Finance lease assets	54
Finance lease obligations	$ 32.8

Leases - Schedule of Other Info

Leases - Schedule of Other Information Related to Leases (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from finance leases	$ 910	$ 989
Operating cash flows from operating leases	5,533	7,452
Financing cash flows from finance leases	710	1,026
Non-cash items:
New operating leases and remeasurements, net	$ 792	$ 2,985

Leases - Future Lease Payments

Leases - Future Lease Payments under Non-Cancellable Leases (Details) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020
Operating Leases
2021	[1]	$ 14,952
2022	[1]	17,567
2023	[1]	15,003
2024	[1]	10,810
2025	[1]	6,828
Thereafter	[1]	35,903
Total undiscounted lease payments	[1]	101,063
Less: imputed interest	[1]	(32,684)
Total lease liabilities	[1]	68,379	$ 71,483
Finance Leases
2021	[2]	5,045
2022	[2]	6,622
2023	[2]	6,601
2024	[2]	6,236
2025	[2]	5,184
Thereafter	[2]	45,114
Total undiscounted lease payments	[2]	74,802
Less: imputed interest	[2]	(27,156)
Total lease liabilities	[2]	$ 47,646	$ 48,724
[1]	Includes $16.9 million lease liabilities in Held for Sale as of March 31, 2021
[2]	Includes $32.8 million finance lease obligations in Held for Sale as of March 31, 2021

Leases - Future Lease Payment_2

Leases - Future Lease Payments under Non-Cancellable Leases (Parenthetical) (Details) - Uniti Fiber Northeast Operations and Dark Fiber IRU Contracts - Disposal Group, Held for Sale, Not qualified as Discontinued Operation $ in Millions	Mar. 31, 2021USD ($)
Lessee Lease Description [Line Items]
Lease liabilities	$ 16.9
Finance lease obligations	$ 32.8

Leases - Future Sublease Rental

Leases - Future Sublease Rentals (Details) $ in Thousands	Mar. 31, 2021USD ($)
Leases [Abstract]
2021	$ 6,219
2022	8,746
2023	8,799
2024	8,851
2025	8,904
Thereafter	124,715
Total	$ 166,234

Assets and Liabilities Held f_3

Assets and Liabilities Held for Sale - Additional Information (Details) - Everstream Solutions LLC $ in Millions	1 Months Ended
	Oct. 31, 2020USD ($)
IRU Lease Agreements
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Lease agreements, term	20 years
Management fee receivable	$ 3
Annual escalator	2.00%
Uniti Fiber Northeast Operations And Certain Dark Fiber Indefeasible Rights Of Use Contracts
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Total cash consideration, including upfront IRU payments	$ 135

Assets and Liabilities Held f_4

Assets and Liabilities Held for Sale - Schedule of Assets and Liabilities Classified as Held for Sale (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Liabilities:
Total Liabilities	$ 54,167	$ 55,752
Disposal Group, Held for Sale, Not qualified as Discontinued Operation | Everstream Solutions LLC
Assets:
Property, pant and equipment, net	44,208	44,150
Goodwill	17,794	17,794
Intangible assets, net	7,264	10,720
Right of use assets, net	18,484	20,679
Total assets	87,750	93,343
Liabilities:
Lease liabilities	16,885	17,647
Intangible liabilities, net	4,492	4,849
Finance lease obligations	32,790	33,256
Total Liabilities	$ 54,167	$ 55,752

Investments in Unconsolidated_2

Investments in Unconsolidated Entities - Additional Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021USD ($)
Variable Interest Entity, Not Primary Beneficiary
Schedule Of Equity Method Investments [Line Items]
Aggregate investment in equity method	$ 65.5
BB Fiber Holdings LLC
Schedule Of Equity Method Investments [Line Items]
Percentage of ownership interest in Propco under long-term, triple net lease	47.50%
Percentage of economic interest in Propco	20.00%
Current investment and maximum exposure to loss result of involvement	$ 40.8
BB Fiber Holdings LLC | Variable Interest Entity, Not Primary Beneficiary
Schedule Of Equity Method Investments [Line Items]
Percentage of ownership interest	42.00%
HarmoniHarmoni | Variable Interest Entity, Not Primary Beneficiary
Schedule Of Equity Method Investments [Line Items]
Percentage of ownership interest	8.00%
Current investment and maximum exposure to loss	$ 24.6
Transition service fees earned	$ 0.1

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Schedule of Fair Value Valuation of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Liabilities
Settlement payable	$ 398,887	$ 418,840
Derivative liability, net	19,908	22,897
Total	5,740,196	5,666,340
Contingent consideration		2,957
Prices with Other Observable Inputs (Level 2)
Liabilities
Settlement payable	398,887	418,840
Derivative liability, net	19,908	22,897
Total	5,740,196	5,663,383
Prices with Unobservable Inputs (Level 3)
Liabilities
Total		2,957
Contingent consideration		2,957
7.875% Senior Secured Notes
Liabilities
Senior notes	2,421,563	2,410,313
7.875% Senior Secured Notes | Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	2,421,563	2,410,313
6.00% Senior Secured Notes
Liabilities
Senior notes	558,938	561,000
6.00% Senior Secured Notes | Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	558,938	561,000
6.50% Senior Unsecured Notes
Liabilities
Senior notes	1,094,738
6.50% Senior Unsecured Notes | Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	1,094,738
8.25% Senior Unsecured Notes
Liabilities
Senior notes	58,966	1,112,775
8.25% Senior Unsecured Notes | Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	58,966	1,112,775
7.125% Senior Unsecured Notes
Liabilities
Senior notes	617,250	601,500
7.125% Senior Unsecured Notes | Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	617,250	601,500
Senior Secured Revolving Credit Facility
Liabilities
Senior secured loan	160,000	110,000
Senior Secured Revolving Credit Facility | Prices with Other Observable Inputs (Level 2)
Liabilities
Senior secured loan	160,000	110,000
Exchangeable Senior Notes - 4.00%, due June 15, 2024
Liabilities
Senior notes	409,946
Exchangeable Senior Notes - 4.00%, due June 15, 2024 | Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes	$ 409,946
Exchangeable Senior Unsecured Notes - 4.00%, due June 15, 2024
Liabilities
Senior notes		426,058
Exchangeable Senior Unsecured Notes - 4.00%, due June 15, 2024 | Prices with Other Observable Inputs (Level 2)
Liabilities
Senior notes		$ 426,058

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Schedule of Fair Value Valuation of Financial Instruments (Parenthetical) (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
7.875% Senior Secured Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Issuance senior notes, stated percentage	7.875%	7.875%
Debt instrument, maturity date	Feb. 15, 2025	Feb. 15, 2025
6.00% Senior Secured Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Issuance senior notes, stated percentage	6.00%	6.00%
Debt instrument, maturity date	Apr. 15, 2023	Apr. 15, 2023
8.25% Senior Unsecured Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Issuance senior notes, stated percentage	8.25%	8.25%
Debt instrument, maturity date	Oct. 15, 2023	Oct. 15, 2023
7.125% Senior Unsecured Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Issuance senior notes, stated percentage	7.125%	7.125%
Debt instrument, maturity date	Dec. 15, 2024	Dec. 15, 2024
Senior Secured Revolving Credit Facility
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt instrument, maturity date	Dec. 10, 2024	Dec. 10, 2024
Debt instrument, original maturity date		Apr. 24, 2022
6.50% Senior Unsecured Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Issuance senior notes, stated percentage	6.50%
Debt instrument, maturity date	Feb. 15, 2029
Exchangeable Senior Notes - 4.00%, due June 15, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Issuance senior notes, stated percentage	4.00%
Debt instrument, maturity date	Jun. 15, 2024
Exchangeable Senior Unsecured Notes - 4.00%, due June 15, 2024
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Issuance senior notes, stated percentage	4.00%	4.00%
Debt instrument, maturity date	Jun. 15, 2024	Jun. 15, 2024

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Additional Information (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)Installment	Mar. 31, 2020USD ($)	Dec. 31, 2020USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Principal amount of outstanding notes and other debt	$ 5,073,819		$ 4,965,000
Fair value of settlement payable	398,887		418,840
Payments of contingent consideration	2,979	$ 7,086
Increase in fair value of contingent consideration liability	21	$ 1,495
Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Increase in fair value of contingent consideration liability	100
Tower Cloud, Inc.
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Payments for the achievement of final remaining milestone	3,000
Payments of contingent consideration	7,100
Windstream
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash payment in equal installments emergence from bankruptcy	$ 490,100
Number of installments | Installment	20
Prices with Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Notes and other debt, fair value	$ 5,320,000
Fair value of settlement payable	$ 398,887		$ 418,840

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Roll Forward of Liabilities Measured at Fair Value on Recurring Basis Using Unobservable Inputs (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Fair Value Disclosures [Abstract]
Contingent consideration, beginning balance	$ 2,957
(Gain)/Loss included in earnings	22
Settlements	$ (2,979)

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Carrying Value of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 8,897,361	$ 8,776,840
Less accumulated depreciation	(5,568,122)	(5,503,487)
Net property, plant and equipment	3,329,239	3,273,353
Land
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	27,936	27,945
Building and Improvements
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 351,351	351,305
Building and Improvements | Minimum
Property Plant And Equipment [Line Items]
Depreciable Lives	3 years
Building and Improvements | Maximum
Property Plant And Equipment [Line Items]
Depreciable Lives	40 years
Poles
Property Plant And Equipment [Line Items]
Depreciable Lives	30 years
Property, plant and equipment, gross	$ 270,102	266,758
Fiber
Property Plant And Equipment [Line Items]
Depreciable Lives	30 years
Property, plant and equipment, gross	$ 3,796,553	3,737,372
Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 306,931	298,912
Equipment | Minimum
Property Plant And Equipment [Line Items]
Depreciable Lives	5 years
Equipment | Maximum
Property Plant And Equipment [Line Items]
Depreciable Lives	7 years
Copper
Property Plant And Equipment [Line Items]
Depreciable Lives	20 years
Property, plant and equipment, gross	$ 3,881,801	3,850,987
Conduit
Property Plant And Equipment [Line Items]
Depreciable Lives	30 years
Property, plant and equipment, gross	$ 89,776	89,773
Tower assets
Property Plant And Equipment [Line Items]
Depreciable Lives	20 years
Property, plant and equipment, gross	$ 8,571	8,571
Finance Lease Assets
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	71,318	74,103
Other assets
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 10,675	10,553
Other assets | Minimum
Property Plant And Equipment [Line Items]
Depreciable Lives	15 years
Other assets | Maximum
Property Plant And Equipment [Line Items]
Depreciable Lives	20 years
Corporate assets
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 13,628	13,475
Corporate assets | Minimum
Property Plant And Equipment [Line Items]
Depreciable Lives	3 years
Corporate assets | Maximum
Property Plant And Equipment [Line Items]
Depreciable Lives	7 years
Construction in progress
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 68,719	$ 47,086

Property, Plant and Equipment_2

Property, Plant and Equipment - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Property Plant And Equipment [Abstract]
Depreciation expense	$ 66.2	$ 77.8

Derivative Instruments and He_3

Derivative Instruments and Hedging Activities - Additional Information (Details) - USD ($)	Jun. 25, 2019	Apr. 27, 2015	Mar. 31, 2021	Mar. 31, 2020
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Estimated amount to be reclassified as an increase to interest expense			$ 11,300,000
Common stock aggregate at an exercise price	$ 16.42
Warrants expiring period			2024-09
Reclassification Out of Other Comprehensive Income | Designated as Cash Flow Hedges
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Reclassification out of other comprehensive income into interest (expense) benefit			$ (2,800,000)	$ (1,700,000)
Maximum
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Maximum number of shares issued pursuant to warrants	55,500,000
Maximum | Warrants
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Anti-dilution adjustments	27,800,000
Interest Rate Swap
Derivative Instruments And Hedging Activities Disclosures [Line Items]
Derivative, notional value		$ 2,020,000,000
Derivative, maturity date		Oct. 24, 2022

Derivative Instruments and He_4

Derivative Instruments and Hedging Activities - Summary of Gross Amount of Derivative Instruments Subject to Master Netting Arrangements With Same Counterparty (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Offsetting Assets And Liabilities [Line Items]
Gross Amounts of Recognized Assets	$ 23,602	$ 27,869
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	(23,602)	(27,869)
Gross Amounts of Recognized Liabilities	43,510	50,766
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	(23,602)	(27,869)
Net Amounts of Assets or Liabilities presented in the Condensed Consolidated Balance Sheets	19,908	22,897
Interest Rate Swap
Offsetting Assets And Liabilities [Line Items]
Gross Amounts of Recognized Assets	23,602	27,869
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	(23,602)	(27,869)
Gross Amounts of Recognized Liabilities	43,510	50,766
Gross Amounts Offset in the Condensed Consolidated Balance Sheets	(23,602)	(27,869)
Net Amounts of Assets or Liabilities presented in the Condensed Consolidated Balance Sheets	$ 19,908	$ 22,897

Derivative Instruments and He_5

Derivative Instruments and Hedging Activities - Summary of Fair Value of Derivative Instruments and Presentation in Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Derivatives Fair Value [Line Items]
Derivative liability, net	$ 19,908	$ 22,897
Interest Rate Swap
Derivatives Fair Value [Line Items]
Derivative liability, net	$ 19,908	$ 22,897

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets and Liabilities - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Remaining weighted average amortization period of intangible assets	15 years 6 months
Remaining weighted average amortization period of intangible liabilities	18 years 7 months 6 days
Amortization	$ 4.8	$ 8.3
Estimated amortization expense for 2021	19.1
Estimated amortization expense for 2022	19.1
Estimated amortization expense for 2023	19.1
Estimated amortization expense for 2024	19
Estimated amortization expense for 2025	19
Fiber Infrastructure
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Change in goodwill amount	$ 0

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets and Liabilities - Schedule of Carrying Amount of Goodwill (Details) $ in Thousands	Mar. 31, 2021USD ($)
Goodwill [Line Items]
Goodwill at December 31, 2020	$ 601,878
Goodwill at March 31, 2021	601,878
Fiber Infrastructure
Goodwill [Line Items]
Goodwill at December 31, 2020	601,878
Goodwill at March 31, 2021	$ 601,878

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets and Liabilities - Schedule of Carrying Value of the Intangible Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Total intangible assets, Original Cost	$ 479,137	$ 474,870
Less: accumulated amortization	(92,124)	(84,145)
Total intangible assets, net	387,013	390,725
Less: accumulated amortization	(5,347)	(2,200)
Total intangible liabilities, net	185,807	187,886
Customer Lists
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Original Cost	416,104	416,104
Less: accumulated amortization	(88,666)	(82,989)
Contracts
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Original Cost	52,536	48,269
Less: accumulated amortization	(3,283)	(1,068)
Underlying Rights
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Finite life intangible assets, Original Cost	10,497	10,497
Less: accumulated amortization	(175)	(87)
Below-market Leases
Schedule Of Indefinite And Finite Lived Intangible Assets And Liabilities [Line Items]
Total intangible liabilities	191,154	190,086
Less: accumulated amortization	$ (5,347)	$ (2,200)

Notes and Other Debt - Schedule

Notes and Other Debt - Schedule of Notes and Other Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Feb. 02, 2021	Dec. 31, 2020	Dec. 10, 2020
Debt Instrument [Line Items]
Debt instrument carrying amount	$ 5,073,819		$ 4,965,000
Less unamortized discount, premium and debt issuance costs	(84,929)		(148,476)
Notes and other debt less unamortized discount, premium and debt issuance costs	4,988,890		4,816,524
Senior Secured Notes - 7.875% Due February 15, 2025
Debt Instrument [Line Items]
Debt instrument carrying amount	2,250,000		2,250,000
Less unamortized discount, premium and debt issuance costs	(37,808)		(39,852)
Senior Unsecured Notes - 6.50%, Due February 24, 2029
Debt Instrument [Line Items]
Debt instrument carrying amount	1,110,000	$ 1,110,000
Less unamortized discount, premium and debt issuance costs	(22,263)
Senior Secured Notes - 6.00% Due April 15, 2023
Debt Instrument [Line Items]
Debt instrument carrying amount	550,000		550,000
Less unamortized discount, premium and debt issuance costs	(3,642)		(4,053)
Senior Unsecured Notes - 8.25% Due October 15, 2023
Debt Instrument [Line Items]
Debt instrument carrying amount	58,819		1,110,000
Less unamortized discount, premium and debt issuance costs	(1,142)		(22,024)
Senior Unsecured Notes - 7.125% Due December 15, 2024
Debt Instrument [Line Items]
Debt instrument carrying amount	600,000		600,000
Less unamortized discount, premium and debt issuance costs	(5,057)		(5,316)
Senior Unsecured Notes - 4.00%, Due June 15, 2024
Debt Instrument [Line Items]
Debt instrument carrying amount	345,000		345,000
Less unamortized discount, premium and debt issuance costs	(7,935)		(69,608)
Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument carrying amount	160,000		110,000	$ 560,500
Less unamortized discount, premium and debt issuance costs	$ (7,082)		$ (7,623)

Notes and Other Debt - Schedu_2

Notes and Other Debt - Schedule of Notes and Other Debt (Parenthetical) (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
7.875% Senior Secured Notes
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 15, 2025	Feb. 15, 2025
Issuance senior notes, stated percentage	7.875%	7.875%
Debt instrument, imputed interest rate	8.38%	8.38%
Senior Unsecured Notes - 6.50%, Due February 24, 2029
Debt Instrument [Line Items]
Debt instrument, maturity date	Feb. 24, 2029	Feb. 24, 2029
Issuance senior notes, stated percentage	6.50%	6.50%
Debt instrument, imputed interest rate	6.83%	6.83%
Senior Secured Notes - 6.00% Due April 15, 2023
Debt Instrument [Line Items]
Debt instrument, maturity date	Apr. 15, 2023	Apr. 15, 2023
Issuance senior notes, stated percentage	6.00%	6.00%
Debt instrument, imputed interest rate	6.49%	6.49%
Senior Unsecured Notes - 8.25% Due October 15, 2023
Debt Instrument [Line Items]
Debt instrument, maturity date	Oct. 15, 2023	Oct. 15, 2023
Issuance senior notes, stated percentage	8.25%	8.25%
Debt instrument, imputed interest rate	9.06%	9.06%
Senior Unsecured Notes - 7.125% Due December 15, 2024
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 15, 2024	Dec. 15, 2024
Issuance senior notes, stated percentage	7.125%	7.125%
Debt instrument, imputed interest rate	7.38%	7.38%
Exchangeable Senior Unsecured Notes - 4.00%, due June 15, 2024
Debt Instrument [Line Items]
Debt instrument, maturity date	Jun. 15, 2024	Jun. 15, 2024
Issuance senior notes, stated percentage	4.00%	4.00%
Debt instrument, imputed interest rate	4.77%	4.77%
Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 10, 2024	Dec. 10, 2024

Notes and Other Debt - Addition

Notes and Other Debt - Additional Information (Details) - USD ($) $ in Thousands	Dec. 10, 2020	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Apr. 20, 2021	Feb. 02, 2021
Debt Instrument [Line Items]
Debt instrument amount		$ 5,073,819		$ 4,965,000
Amortization of deferred financing costs		$ 4,100	$ 3,000
Maximum
Debt Instrument [Line Items]
Consolidated secured leverage ratio		500.00%
Consolidated total leverage ratio		650.00%
Maximum | Pro Forma
Debt Instrument [Line Items]
Consolidated secured leverage ratio		400.00%
Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC
Debt Instrument [Line Items]
Percentage of pay cash dividends in excess of taxable income		90.00%
CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument, debt default, description of violation or event of default		In particular, a repayment obligation could be triggered if (i) the Borrowers or certain of their subsidiaries fail to make a payment when due of any principal or interest on any other indebtedness aggregating $75.0 million or more, or (ii) an event occurs that causes, or would permit the holders of any other indebtedness aggregating $75.0 million or more to cause, such indebtedness to become due prior to its stated maturity.
Debt Instrument, debt default, amount		$ 75,000
Senior Secured Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument amount	$ 560,500	$ 160,000		$ 110,000
Debt instrument, maturity date		Dec. 10, 2024		Dec. 10, 2024
Commitment fee percentage of average amount of unused commitments		0.50%
Commitment fee step-down percentage of average amount of unused commitments		0.40%
Senior Secured Revolving Credit Facility | Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 160,000
7.875% Senior Secured Notes
Debt Instrument [Line Items]
Debt instrument amount		$ 2,250,000		$ 2,250,000
Issuance senior notes, stated percentage		7.875%		7.875%
Debt instrument, maturity date		Feb. 15, 2025		Feb. 15, 2025
Debt instrument, imputed interest rate		8.38%		8.38%
7.875% Senior Secured Notes | Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 2,250,000
Issuance senior notes, stated percentage		7.875%
Debt instrument, maturity year		2025
Net leverage ratio		5.75%
Senior Secured Notes - 6.00% Due April 15, 2023
Debt Instrument [Line Items]
Debt instrument amount		$ 550,000		$ 550,000
Issuance senior notes, stated percentage		6.00%		6.00%
Debt instrument, maturity date		Apr. 15, 2023		Apr. 15, 2023
Debt instrument, imputed interest rate		6.49%		6.49%
Senior Secured Notes - 6.00% Due April 15, 2023 | Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 550,000
Issuance senior notes, stated percentage		6.00%
Debt instrument, maturity date		Apr. 15, 2023
Senior Unsecured Notes - 7.125% Due December 15, 2024
Debt Instrument [Line Items]
Debt instrument amount		$ 600,000		$ 600,000
Issuance senior notes, stated percentage		7.125%		7.125%
Debt instrument, maturity date		Dec. 15, 2024		Dec. 15, 2024
Debt instrument, imputed interest rate		7.38%		7.38%
Senior Unsecured Notes - 7.125% Due December 15, 2024 | Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 600,000
Issuance senior notes, stated percentage		7.125%
Debt instrument, maturity date		Dec. 15, 2024
Exchangeable Notes
Debt Instrument [Line Items]
Issuance senior notes, stated percentage		4.00%
Debt instrument, maturity date		Jun. 15, 2024
Exchangeable Notes | Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 345,000
Issuance senior notes, stated percentage		4.00%
Debt instrument, maturity date		Jun. 15, 2024
6.50% Senior Unsecured Notes
Debt Instrument [Line Items]
Issuance senior notes, stated percentage		6.50%
Debt instrument, maturity date		Feb. 15, 2029
Debt instrument issued percent of principal amount		100.00%
Debt instrument, imputed interest rate		6.50%
6.50% Senior Unsecured Notes | Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 1,110,000
Issuance senior notes, stated percentage		6.50%
Debt instrument, maturity date		Feb. 15, 2029
Senior Unsecured Notes - 6.50%, Due February 24, 2029
Debt Instrument [Line Items]
Debt instrument amount		$ 1,110,000				$ 1,110,000
Issuance senior notes, stated percentage		6.50%		6.50%
Debt instrument, maturity date		Feb. 24, 2029		Feb. 24, 2029
Debt instrument, imputed interest rate		6.83%		6.83%
Debt instrument redemption price percentage		100.00%
Debt instrument aggregate principal amount remaining outstanding		60.00%
Senior Unsecured Notes - 6.50%, Due February 24, 2029 | Redemption on or Prior to February 15, 2024
Debt Instrument [Line Items]
Debt instrument redemption price percentage		106.50%
Debt instrument, redemption price, percentage of principal amount redeemed		40.00%
Senior Unsecured Notes - 6.50%, Due February 24, 2029 | Redemption If Certain Changes of Control
Debt Instrument [Line Items]
Debt instrument redemption price percentage		101.00%
8.25% Senior Unsecured Notes
Debt Instrument [Line Items]
Debt instrument amount		$ 58,819		$ 1,110,000
Issuance senior notes, stated percentage		8.25%		8.25%
Debt instrument, maturity date		Oct. 15, 2023		Oct. 15, 2023
Debt issuance cost		$ 20,400
Cash interest expense for tender premium		17,600
Remaining unamortized discount and deferred finance costs		$ 1,100
Debt instrument, imputed interest rate		9.06%		9.06%
8.25% Senior Unsecured Notes | Interest Expense
Debt Instrument [Line Items]
Loss on repayment of tendered notes		$ 38,000
8.25% Senior Unsecured Notes | Uniti Group LP, Uniti Group Finance 2019 Inc. and CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 58,800
Issuance senior notes, stated percentage		8.25%
Debt instrument, maturity date		Oct. 15, 2023
4.750% Senior Secured Notes due 2028 | Subsequent Event
Debt Instrument [Line Items]
Debt instrument amount					$ 570,000
Issuance senior notes, stated percentage					4.75%
Non-Extended Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument amount	$ 60,500
Debt instrument, maturity date	Apr. 24, 2022
Non-Extended Revolving Credit Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		3.75%
Non-Extended Revolving Credit Facility | Minimum | Eurodollar
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		4.75%
Non-Extended Revolving Credit Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		4.25%
Non-Extended Revolving Credit Facility | Maximum | Eurodollar
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		5.25%
Non-Extended Revolving Credit Facility | CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 60,500
Debt instrument, maturity date		Apr. 24, 2022
Extended Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument amount	$ 500,000
Debt instrument, maturity date	Dec. 10, 2024
Extended Revolving Credit Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		2.75%
Extended Revolving Credit Facility | Minimum | Eurodollar
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		3.75%
Extended Revolving Credit Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		3.50%
Extended Revolving Credit Facility | Maximum | Eurodollar
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		4.50%
Extended Revolving Credit Facility | CSL Capital, LLC
Debt Instrument [Line Items]
Debt instrument amount		$ 500,000
Debt instrument, maturity date		Dec. 10, 2024

Earnings Per Share - Schedule o

Earnings Per Share - Schedule of Earnings Per Share Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Numerator:
Net loss attributable to shareholders	$ (4,438)	$ (78,853)
Less: Income allocated to participating securities	(248)	(200)
Dividends declared on convertible preferred stock	(3)	(3)
Net loss attributable to common shareholders	$ (4,689)	$ (79,056)
Denominator:
Basic weighted-average common shares outstanding	231,469	192,236
Basic earnings (loss) per common share	$ (0.02)	$ (0.41)
Numerator:
Net loss attributable to shareholders	$ (4,438)	$ (78,853)
Less: Income allocated to participating securities	(248)	(200)
Dividends declared on convertible preferred stock	(3)	(3)
Net loss attributable to common shares	$ (4,689)	$ (79,056)
Denominator:
Basic weighted-average common shares outstanding	231,469	192,236
Weighted-average shares for dilutive earnings per common share	231,469	192,236
Dilutive earnings (loss) per common share	$ (0.02)	$ (0.41)

Earnings Per Share - Additional

Earnings Per Share - Additional Information (Details) - Common Stock - shares	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Exchangeable Notes
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted earnings per share	30,052,433	28,867,703
Non-Participating Securities
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Anti-dilutive securities excluded from the computation of diluted earnings per share	762,355	747,274

Segment Information - Additiona

Segment Information - Additional Information (Details) - Segment	Jan. 01, 2021	Mar. 31, 2021	Dec. 31, 2020
Segment Reporting [Abstract]
Number of reportable business segments		4
Number of operating business segments	2		4

Segment Information - Schedule

Segment Information - Schedule of Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Revenues	$ 272,586	$ 266,162
Adjusted EBITDA	214,248	201,714
Interest expense	140,581	178,393
Depreciation and amortization	70,964	86,121
Other expense, net	1,318	3,075
Transaction related and other costs	4,137	15,972
Stock-based compensation	3,335	2,995
Income tax benefit	(2,557)	(4,576)
Adjustments for equity in earnings from unconsolidated entities	972
Net loss	(4,502)	(80,266)
Leasing
Segment Reporting Information [Line Items]
Revenues	194,936	184,352
Adjusted EBITDA	191,497	181,879
Depreciation and amortization	42,226	54,622
Fiber Infrastructure
Segment Reporting Information [Line Items]
Revenues	77,650	77,407
Adjusted EBITDA	29,721	27,541
Depreciation and amortization	28,670	30,061
Towers
Segment Reporting Information [Line Items]
Revenues		3,720
Adjusted EBITDA		(8)
Depreciation and amortization		769
Consumer CLEC
Segment Reporting Information [Line Items]
Revenues		683
Adjusted EBITDA		17
Depreciation and amortization		594
Corporate
Segment Reporting Information [Line Items]
Adjusted EBITDA	(6,970)	(7,715)
Depreciation and amortization	$ 68	$ 75

Commitments and Contingencies -

Commitments and Contingencies - Additional Information (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2021USD ($)Installment	Dec. 31, 2020USD ($)
Commitments And Contingencies [Line Items]
Obligations under tax matters agreement	$ 0
Windstream
Commitments And Contingencies [Line Items]
Cash payment in equal installments emergence from bankruptcy	$ 490,100
Number of installments | Installment	20
First three quarterly cash payments to be made after emergence	$ 73,500
Agreement to invest growth capital improvements	1,750,000
Growth Capital Improvements except maintenance or repair expenditures and expenditures towards cost incurred for fiber replacements	70,000
Annual reimbursement commitment payments due year one through four	225,000
Annual reimbursement commitment payments, due year five	175,000
Annual reimbursement commitment payments, due year six	175,000
Annual reimbursement commitment payments, due year seven through nine	125,000
Growth capital improvements fund annual limit	250,000
Growth capital improvements funded during the period	42,700	$ 84,700
Windstream | Other Assets
Commitments And Contingencies [Line Items]
Lease incentive	1,000
Windstream | Maximum
Commitments And Contingencies [Line Items]
Commitment amount	265,300
Separate Equipment Loan Facilities
Commitments And Contingencies [Line Items]
Annual reimbursement commitment payments due year one through four	225,000
Annual reimbursement commitment payments, due year five	175,000
Annual reimbursement commitment payments, due year six	175,000
Annual reimbursement commitment payments, due year seven through nine	$ 125,000

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive (Loss) Income - Schedule of Changes in Accumulated Other Comprehensive (Loss) Income by Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period attributable to common shareholders	$ (2,141,658)
Balance at end of period attributable to common shareholders	(2,222,430)
Accumulated other comprehensive loss at end of period	(17,580)	$ (28,717)	$ (20,367)
Cash Flow Hedge Changes in Fair Value (Loss) Gain
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period attributable to common shareholders	(30,353)	(23,442)
Other comprehensive loss before reclassifications		(7,713)
Amounts reclassified from accumulated other comprehensive income		677
Balance at end of period	(30,353)	(30,478)
Less: Other comprehensive (loss) income attributable to noncontrolling interest		(125)
Balance at end of period attributable to common shareholders	(30,353)	(30,353)
Interest Rate Swap Termination
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at beginning of period attributable to common shareholders	9,986
Amounts reclassified from accumulated other comprehensive income	2,829	1,666
Balance at end of period	12,815	1,666
Less: Other comprehensive (loss) income attributable to noncontrolling interest	42	30
Balance at end of period attributable to common shareholders	$ 12,773	$ 1,636

Subsequent Events - Additional

Subsequent Events - Additional Information (Details) - USD ($) $ in Thousands	Apr. 20, 2021	Mar. 31, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Debt instrument amount		$ 5,073,819	$ 4,965,000
2028 Secured Notes Due April 15,2024
Subsequent Event [Line Items]
Debt instrument redemption price percentage		103.00%
Subsequent Event | 2028 Secured Notes
Subsequent Event [Line Items]
Debt instrument amount	$ 570,000
Non guarantor issuance approval period	60 days
Subsequent Event | Senior secured Notes - 4.750%, Due April 15, 2028
Subsequent Event [Line Items]
Debt instrument issued percent of principal amount	100.00%
Debt instrument, maturity date	Apr. 15, 2028
Effective interest rate	4.75%
Subsequent Event | 2028 Secured Notes Due April 15,2024
Subsequent Event [Line Items]
Debt instrument redemption price percentage	100.00%
Debt instrument aggregate principal amount remaining outstanding	60.00%
Subsequent Event | 2028 Secured Notes Due April 15,2024 | Redemption on or Prior to February 15, 2024
Subsequent Event [Line Items]
Debt instrument redemption price percentage	104.75%
Subsequent Event | 2028 Secured Notes Due April 15,2024 | Redemption on or Prior to February 15, 2024 | Maximum
Subsequent Event [Line Items]
Debt instrument redemption price percentage	10.00%
Debt instrument, redemption price, percentage of principal amount redeemed	40.00%
Subsequent Event | 2028 Secured Notes Due April 15,2024 | Redemption If Certain Changes of Control
Subsequent Event [Line Items]
Debt instrument redemption price percentage	101.00%